Academic literature on the topic 'Social communication signal'
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Journal articles on the topic "Social communication signal"
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Wittwer, Bernadette, Abraham Hefetz, Tovit Simon, Li E. K. Murphy, Mark A. Elgar, Naomi E. Pierce, and Sarah D. Kocher. "Solitary bees reduce investment in communication compared with their social relatives." Proceedings of the National Academy of Sciences 114, no. 25 (May 22, 2017): 6569–74. http://dx.doi.org/10.1073/pnas.1620780114.
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Social animals must communicate to define group membership and coordinate social organization. For social insects, communication is predominantly mediated through chemical signals, and as social complexity increases, so does the requirement for a greater diversity of signals. This relationship is particularly true for advanced eusocial insects, including ants, bees, and wasps, whose chemical communication systems have been well-characterized. However, we know surprisingly little about how these communication systems evolve during the transition between solitary and group living. Here, we demonstrate that the sensory systems associated with signal perception are evolutionarily labile. In particular, we show that differences in signal production and perception are tightly associated with changes in social behavior in halictid bees. Our results suggest that social species require a greater investment in communication than their solitary counterparts and that species that have reverted from eusociality to solitary living have repeatedly reduced investment in these potentially costly sensory perception systems.
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Ord, Terry J., and Joan Garcia-Porta. "Is sociality required for the evolution of communicative complexity? Evidence weighed against alternative hypotheses in diverse taxonomic groups." Philosophical Transactions of the Royal Society B: Biological Sciences 367, no. 1597 (July 5, 2012): 1811–28. http://dx.doi.org/10.1098/rstb.2011.0215.
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Complex social communication is expected to evolve whenever animals engage in many and varied social interactions; that is, sociality should promote communicative complexity. Yet, informal comparisons among phylogenetically independent taxonomic groups seem to cast doubt on the putative role of social factors in the evolution of complex communication. Here, we provide a formal test of the sociality hypothesis alongside alternative explanations for the evolution of communicative complexity. We compiled data documenting variations in signal complexity among closely related species for several case study groups—ants, frogs, lizards and birds—and used new phylogenetic methods to investigate the factors underlying communication evolution. Social factors were only implicated in the evolution of complex visual signals in lizards. Ecology, and to some degree allometry, were most likely explanations for complexity in the vocal signals of frogs (ecology) and birds (ecology and allometry). There was some evidence for adaptive evolution in the pheromone complexity of ants, although no compelling selection pressure was identified. For most taxa, phylogenetic null models were consistently ranked above adaptive models and, for some taxa, signal complexity seems to have accumulated in species via incremental or random changes over long periods of evolutionary time. Becoming social presumably leads to the origin of social communication in animals, but its subsequent influence on the trajectory of signal evolution has been neither clear-cut nor general among taxonomic groups.
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Tang, Zifei, Xi Wang, Mingyang Wu, Shiwang Chen, and Jinhua Li. "Tibetan Macaques with Higher Social Centrality and More Relatives Emit More Frequent Visual Communication in Collective Decision-Making." Animals 11, no. 3 (March 19, 2021): 876. http://dx.doi.org/10.3390/ani11030876.
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Animals on the move often communicate with each other through some specific postures. Previous studies have shown that social interaction plays a role in communication process. However, it is not clear whether the affinity of group members can affect visual communication. We studied a group of free-ranging Tibetan macaques (Macaca thibetana) at Huangshan Mountain, China, and answered whether and how social centrality or relatives matter in visual signals during group movement using Tobit regression modeling. All individuals emitted the signals of back-glances and pauses in collective movement. The emission of two signals decreased with the number of participants increased. The back-glance and pause signals emitted by the participating individuals were stronger as the position moved backward in the group. Sex, age, and rank had no significant influence on back-glance and pause signals. Individuals with higher social centrality would emit more pause signals, but social centrality had no effect on the back-glance signal. Individuals with more relatives in the group had more back-glance signals, but this had no effect on the pause signal. This study verifies that social centrality and the number of relatives have effects on visual signals in Tibetan macaques. We provide insights into the relationship between communication behaviors and group cooperation in social animals.
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Maruska, Karen P., and Julie M. Butler. "Endocrine Modulation of Sending and Receiving Signals in Context-Dependent Social Communication." Integrative and Comparative Biology 61, no. 1 (May 13, 2021): 182–92. http://dx.doi.org/10.1093/icb/icab074.
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Abstract Animal communication requires senders to transmit signals through the environment to conspecific receivers, which then leads to context-dependent behavioral decisions. Sending and receiving sensory information in social contexts, however, can be dramatically influenced by an individual’s internal state, particularly in species that cycle in and out of breeding or other physiological condition like nutritional state or social status. Modulatory substances like steroids, peptides, and biogenic amines can influence both the substrates used for sending social signals (e.g., motivation centers, sensorimotor pathways, and muscles) as well as the peripheral sensory organs and central neural circuitry involved in the reception of this information and subsequent execution of behavioral responses. This issue highlights research from neuroethologists on the topic of modulation of sending and receiving social signals and demonstrates that it can occur in both males and females, in different senses at both peripheral sensory organs and the brain, at different levels of biological organization, on different temporal scales, in various social contexts, and across many diverse vertebrate taxa. Modifying a signal produced by a sender or how that signal is perceived in a receiver provides flexibility in communication and has broad implications for influencing social decisions like mate choice, which ultimately affects reproductive fitness and species persistence. This phenomenon of modulators and internal physiological state impacting communication abilities is likely more widespread than currently realized and we hope this issue inspires others working on diverse systems to examine this topic from different perspectives. An integrative and comparative approach will advance discovery in this field and is needed to better understand how endocrine modulation contributes to sexual selection and the evolution of animal communication in general.
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Barbeisch, Victoria, and Archana Krishnan. "Applying Signaling Theory to Examine Credibility and Impression Management on Social Media." Journal of Communication Technology 5, no. 2 (August 22, 2022): 48–71. http://dx.doi.org/10.51548/joctec-2022-008.
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This study adapts and extends signaling theory to examine perceptions of credibility, gender, homophily, and impression management on social media. Specifically, the influence of different signal types – conventional, assessment, and strategic signals. A 2x3 experimental design was conducted to examine the effect of source gender and signal type on receiver perceptions of source and message credibility, homophily, and impressions of the source. Findings confirm that different signal types affect the perception of message and source credibility on social media. Concepts of gender and homophily were not impacted by signal types in this research. With the increase of image-oriented social media such as Instagram, these results demonstrate the sender's role in the person perception process. The role of signaling theory for strategic communication practices is addressed, and future theoretical directions are considered.
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Morency, Louis-philippe. "Modeling Human Communication Dynamics [Social Sciences." IEEE Signal Processing Magazine 27, no. 5 (September 2010): 112–16. http://dx.doi.org/10.1109/msp.2010.937500.
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Sheehan, Michael J., Judy Jinn, and Elizabeth A. Tibbetts. "Coevolution of visual signals and eye morphology in Polistes paper wasps." Biology Letters 10, no. 4 (April 2014): 20140254. http://dx.doi.org/10.1098/rsbl.2014.0254.
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To be effective, signals must propagate through the environment and be detected by receivers. As a result, signal form evolves in response to both the constraints imposed by the transmission environment and receiver perceptual abilities. Little work has examined the extent to which signals may act as selective forces on receiver sensory systems to improve the efficacy of communication. If receivers benefit from accurate signal assessment, selection could favour sensory organs that improve discrimination of established signals. Here, we provide evidence that visual resolution coevolves with visual signals in Polistes wasps. Multiple Polistes species have variable facial patterns that function as social signals, whereas other species lack visual signals. Analysis of 19 Polistes species shows that maximum eye facet size is positively associated with both eye size and presence of visual signals. Relatively larger facets within the eye's acute zone improve resolution of small images, such as wasp facial signals. Therefore, sensory systems may evolve to optimize signal assessment. Sensory adaptations to facilitate signal detection may represent an overlooked area of the evolution of animal communication.
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Nota, Naomi, James P. Trujillo, and Judith Holler. "Facial Signals and Social Actions in Multimodal Face-to-Face Interaction." Brain Sciences 11, no. 8 (July 30, 2021): 1017. http://dx.doi.org/10.3390/brainsci11081017.
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In a conversation, recognising the speaker’s social action (e.g., a request) early may help the potential following speakers understand the intended message quickly, and plan a timely response. Human language is multimodal, and several studies have demonstrated the contribution of the body to communication. However, comparatively few studies have investigated (non-emotional) conversational facial signals and very little is known about how they contribute to the communication of social actions. Therefore, we investigated how facial signals map onto the expressions of two fundamental social actions in conversations: asking questions and providing responses. We studied the distribution and timing of 12 facial signals across 6778 questions and 4553 responses, annotated holistically in a corpus of 34 dyadic face-to-face Dutch conversations. Moreover, we analysed facial signal clustering to find out whether there are specific combinations of facial signals within questions or responses. Results showed a high proportion of facial signals, with a qualitatively different distribution in questions versus responses. Additionally, clusters of facial signals were identified. Most facial signals occurred early in the utterance, and had earlier onsets in questions. Thus, facial signals may critically contribute to the communication of social actions in conversation by providing social action-specific visual information.
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KNOX, DEAN, and CHRISTOPHER LUCAS. "A Dynamic Model of Speech for the Social Sciences." American Political Science Review 115, no. 2 (March 2, 2021): 649–66. http://dx.doi.org/10.1017/s000305542000101x.
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Speech and dialogue are the heart of politics: nearly every political institution in the world involves verbal communication. Yet vast literatures on political communication focus almost exclusively on what words were spoken, entirely ignoring how they were delivered—auditory cues that convey emotion, signal positions, and establish reputation. We develop a model that opens this information to principled statistical inquiry: the model of audio and speech structure (MASS). Our approach models political speech as a stochastic process shaped by fixed and time-varying covariates, including the history of the conversation itself. In an application to Supreme Court oral arguments, we demonstrate how vocal tone signals crucial information—skepticism of legal arguments—that is indecipherable to text models. Results show that justices do not use questioning to strategically manipulate their peers but rather engage sincerely with the presented arguments. Our easy-to-use R package, communication, implements the model and many more tools for audio analysis.
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Dunlop, Rebecca A. "The effects of vessel noise on the communication network of humpback whales." Royal Society Open Science 6, no. 11 (November 2019): 190967. http://dx.doi.org/10.1098/rsos.190967.
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Humpback whales rely on acoustic communication to mediate social interactions. The distance to which these social signals propagate from the signaller defines its communication space, and therefore communication network (number of potential receivers). As humpback whales migrate along populated coastlines, they are likely to encounter noise from vessel traffic which will mask their social signals. Since no empirical data exist on baleen whale hearing, the consequences of this are usually assumed, being the modelled reduction in their communication space. Here, the communication space and network of migrating humpback whales was compared in increasing wind-dominated and vessel-dominated noise. Behavioural data on their social interactions were then used to inform these models. In typical wind noise, a signaller's communication space was estimated to extend to 4 km, which agreed with the maximum separation distance between groups that socially interacted. An increase in vessel noise reduced the modelled communication area, along with a significant reduction in group social interactions, probably due to a reduction in their communication network. However, signal masking did not fully explain this change in social behaviour, implying there was also an additional effect of the physical presence of the vessel on signaller and receiver behaviour. Though these observed changes in communication space and social behaviour were likely to be short term and localized, an increase in vessel activity due to tourism and coastal population growth may cause more sustained changes along the humpback whale migration paths.
Dissertations / Theses on the topic "Social communication signal"
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Gavassa, Becerra Sat. "Social and Environmental Regulation of Signal Plasticity and Signal Reliability in the Electric Fish Brachyhypopomus gauderio." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/687.
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The balance between the costs and benefits of conspicuous signals ensures that the expression of those signals is related to the quality of the bearer. Plastic signals could enable males to maximize conspicuous traits to impress mates and competitors, but reduce the expression of those traits to minimize signaling costs, potentially compromising the information conveyed by the signals.
I investigated the effect of signal enhancement on the information coded by the biphasic electric signal pulse of the gymnotiform fish Brachyhypopomus gauderio. Increases in population density drive males to enhance the amplitude of their signals. I found that signal amplitude enhancement improves the information about the signaler’s size. Furthermore, I found that the elongation of the signal’s second phase conveys information about androgen levels in both sexes, gonad size in males and estrogen levels in females. Androgens link the duration of the signal’s second phase to other androgen-mediated traits making the signal an honest indicator of reproductive state and aggressive motivation.
Signal amplitude enhancement facilitates the assessment of the signaler’s resource holding potential, important for male-male interactions, while signal duration provides information about aggressive motivation to same-sex competitors and reproductive state to the opposite sex. Moreover, I found that female signals also change in accordance to the social environment. Females also increase the amplitude of their signal when population density increases and elongate the duration of their signal’s second phase when the sex ratio becomes female-biased. Indicating that some degree of sexual selection operates in females.
I studied whether male B. gauderio use signal plasticity to reduce the cost of reproductive signaling when energy is limited. Surprisingly, I found that food limitation promotes the investment in reproduction manifested as signal enhancement and elevated androgen levels. The short lifespan and single breeding season of B. gauderio diminishes the advantage of energy savings and gives priority to sustaining reproduction. I conclude that the electric signal of B. gauderio provides reliable information about the signaler, the quality of this information is reinforced rather than degraded with signal enhancement.
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Steffen, John Edward Hill Geoffrey E. "Carotenoid-based dewlap color as a visual signal in social communication of brown anoles (Norops sagrei)." Auburn, Ala., 2007. http://hdl.handle.net/10415/1330.
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Laporte, Marion N. C. "Pant-grunts in wild chimpanzees (Pan troglodytes schweinfurthii) : the vocal development of a social signal." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/1973.
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While the gestural communication of apes is widely recognised as intentional and flexible, their vocal communication still remains considered as mostly genetically determined and emotionally bound. Trying to limit the direct projections of linguistic concepts, that are far from holding a unified view on what constitute human language, this thesis presents a detailed description of the pant-grunt vocalisation usage and development in the chimpanzees (Pan troglodytes schweinfurthii) of the Budongo forest, Uganda. Pant-grunts are one of the most social vocalisations of the chimpanzee vocal repertoire and are always given from a subordinate individual to a dominant. The question of how such a signal is used and develops is critical for our understanding of chimpanzee social and vocal complexity in an ontogenetical and phylogenetical perpective. Results suggest that pant-grunt vocalisations can be used in a flexible way, both in their form and usage within a social group. More specifically, chimpanzees seemed to take into account the number and identity of surrounding individuals before producing these vocalisations. At the acoustic level, pant-grunts seem to be very variable vocalisations that corresponded to different social situations commonly encountered. Grunts are one of the first vocalisations produced by babies but they are not first produced in social contexts. Although some modifications of the social grunts form and usage could not entirely be attributed to maturation only, the role of the mother seemed to be restricted. Her direct influence was perhaps more visible in the rhythmic patterns of chorusing events. Taken together, this thesis suggests that chimpanzee vocalisations are more flexible in their usage, production and acquisition than previously thought and might therefore be more similar to gestural communication.
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Freeman, Jason Robert. "The Rise of the Listicle: Using Eye-Tracking and Signal Detection Theory to Measure This Growing Phenomenon." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6803.
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As online technology continues to progress, the modes of communication through which content can be shared have exponentially grown. These include advances in navigational options for presenting information and news online. Though the listicle has been around for centuries, the internet has proliferated its growth, as content producers rely on its structure as a vehicle for sharing information. This research shows that in the case of listicles, format had no direct effect on recall, however, participants who had a greater interest in the content showed significantly higher levels of memory sensitivity. This critical finding suggests that news outlets and content producers should concern themselves with ensuring that their content is interesting and relevant to their audience more so than worrying about whether the listicle is in clickable or scrollable form. This first attempt to examine listicles by comparing their navigational difference in terms of recall performance lays a framework for future research on listicles.
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Kriesell, Hannah Joy. "Communication visuelle et acoustique dans le choix du partenaire chez une espèce monomorphique, le Manchot royal (Aptenodytes patagonicus)." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAJ015.
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De nombreux espèces utilisent des signaux multicomposants/multimodales. Au cours de cette thèse, nous avons étudié les signaux acoustiques et visuels produits dans le cadre du choix du partenaire chez le Manchot royal. Concernant les composantes acoustiques, nous avons identifié des arrangements syllabiques spécifiques à chacun des sexes. La fréquence fondamentale et l'énergie des cris des manchots royaux, ainsi que certaines caractéristiques colorimétriques signalent des informations sur la classe d'âge de l'émetteur. Nous avons montré que l'appareil vocal des manchots royaux permet les individus de produire deux bandes de fréquences harmoniques puisqu'ils présentent un syrinx trachéo-bronchique et donc deux sources sonores. En résumé, ce travail de thèse a contribué à une meilleure compréhension des signaux utilisés dans le cadre du choix du partenaire chez une espèce monomorphique qui présente un comportement reproducteur très coûteuxCommunication signals used in sexual selection can be costly to produce and even reduce the emitter’s fitness. Many species use multicomponent signals communication systems in different signal modalities. Here, we study visual and acoustic signals produced in the context of mate choice on a sexually monomorphically ornamented seabird, the king penguin. We identified a sex-specific syllable pattern in the vocalisations of 1-year-old fledglings, juveniles and adult birds. We found that fundamental frequency and energy components of calls and beak spot and ear patch ornament parameters signal information about the age-class of the emitter. Investigating the vocal apparatus of adult king penguins, we showed that king penguins can produce “two voices” since they have a tracheobronchial syrinx, i.e. two sound sources. This thesis contributed to our understanding of signals used in mate choice in a sexually monomorphically ornamented species that exhibits a very costly breeding behaviour
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Mountin, Sarah. "The legality and implications of intentional interference with commercial communication satellite signals." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121593.
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AbstractOver the past few decades, commercial communication satellites have improved the lives of people all over the world. They have fundamentally transformed the way people communicate, how business is conducted, and the manner in which militaries operate, fight and win wars. This dependence, however, has revealed that commercial communication satellites are increasingly vulnerable to disruptions, but also that these disruptions can pose significant risks to users everywhere. Such risks are especially concerning given the likelihood that satellite signal interference will be employed during future armed conflicts to disrupt the communications of adversaries. The implications of this new political, technical and military reality challenge the normative frameworks under international telecommunications law, international space law and international humanitarian law. This thesis addresses these and related issues in four chapters. Chapter One explores the extent to which satellite signal interference is becoming a serious threat to global users. Chapter Two discusses the technical application of interference and the normative regimes governing or relating to satellite transmissions and satellite communications. Chapter Three examines circumstances under which satellite signal interference can constitute an unlawful use of force or amount to an armed attack pursuant to the UN Charter. Chapter Four outlines the range of responses available to States suffering the effects of satellite signal interference.RésuméAu cours des dernières décennies, les satellites de télécommunication ont amélioré la qualité de vie de millions d'humains, et ont profondément transformé leur manière de communiquer. De la même manière, le monde des affaires et les armées ont considérablement changé leur manière d'opérer. Cependant, cette nouvelle dépendance a mis en évidence la vulnérabilité croissante des satellites de télécommunications aux incidents et les risques que ces derniers présentent aux usagers de toute la planète. De tels risques sont préoccupants, étant donnée la probabilité que de futurs belligérants provoquent des interférences avec les signaux satellitaires lors de conflits armés. L'existence de cette nouvelle réalité politique, technique et militaire remet en cause le cadre normatif formé par le droit international des télécommunications, le droit spatial et le droit humanitaire. La présente thèse aborde ces difficultés et les problèmes adjacents. Le premier chapitre explore la portée de la menace réelle que représentent les interférences avec les signaux satellitaires pour les usagers du monde entier. Le deuxième chapitre étudie les applications techniques de ces interférences, ainsi que les normes qui régissent les transmissions par satellite. Le troisième chapitre examine les conditions dans lesquelles les interférences sont constitutives d'un usage illégal de la force ou s'apparentent à une agression armée au sens de la Charte des Nations Unies. Le dernier chapitre s'attarde sur les moyens dont disposent les Etats contre les interférences avec les signaux satellitaires.
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Bellamy, Robyn Lyle, and robyn bellamy@flinders edu au. "LIFE HISTORY AND CHEMOSENSORY COMMUNICATION IN THE SOCIAL AUSTRALIAN LIZARD, EGERNIA WHITII." Flinders University. Biological Sciences, 2007. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20070514.163902.
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ABSTRACT
Social relationships, habitat utilisation and life history characteristics provide a framework which enables the survival of populations in fluctuating ecological conditions. An understanding of behavioural ecology is critical to the implementation of Natural Resource Management strategies if they are to succeed in their conservation efforts during the emergence of climate change. Egernia whitii from Wedge Island in the Spencer Gulf of South Australia were used as a model system to investigate the interaction of life history traits, scat piling behaviour and chemosensory communication in social lizards.
Juveniles typically took ¡Ý 3 years to reach sexual maturity and the results of skeletochronological studies suggested longevity of ¡Ý 13 years. Combined with a mean litter size of 2.2, a pregnancy rate estimated at 75% of eligible females during short-term studies, and highly stable groups, this information suggests several life history features.
Prolonged juvenile development and adult longevity may be prerequisite to the development of parental care. Parental care may, in turn, be the determining factor that facilitates the formation of small family groups. In E. whitii parental care takes the form of foetal and neonatal provisioning and tolerance of juveniles by small family or social groups within established resource areas. Presumably, resident juveniles also benefit from adult territorialism. Research on birds suggests that low adult mortality predisposes cooperative breeding or social grouping in birds, and life history traits and ecological factors appear to act together to facilitate cooperative systems.
E. whitii practice scat piling both individually and in small groups. Social benefits arising from signalling could confer both cooperative and competitive benefits. Permanent territorial markers have the potential to benefit conspecifics, congenerics and other species. The high incidence of a skink species (E. whitii) refuging with a gecko species (N. milii) on Wedge Island provides an example of interspecific cooperation. The diurnal refuge of the nocturnal gecko is a useful transient shelter for the diurnal skink. Scat piling may release a species ¡®signature¡¯ for each group that allows mutual recognition.
Scat piling also facilitates intraspecific scent marking by individual members, which has the potential to indicate relatedness, or social or sexual status within the group. The discovery of cloacal scent marking activity is new to the Egernia genus. E. Whitii differentiate between
their own scats, and conspecific and congeneric scats. They scent mark at the site of conspecific scats, and males and females differ in their response to scent cues over time. Scat piling has the potential to make information concerning the social environment available to dispersing transient and potential immigrant conspecifics, enabling settlement choices to be made.
This thesis explores some of the behavioural strategies employed by E. whitii to reduce risks to individuals within groups and between groups. Scents eliciting a range of behavioural responses relevant to the formation of adaptive social groupings, reproductive activity, and juvenile protection until maturity and dispersal are likely to be present in this species. Tests confirming chemosensory cues that differentiate sex, kin and age would be an interesting addition to current knowledge. The interaction of delayed maturity, parental care, sociality, chemosensory communication and scat piling highlights the sophistication of this species¡¯ behaviour.
An alternative method for permanently marking lizards was developed. Persistence, reliability and individual discrimination were demonstrated using photographic identification and the method was shown to be reliable for broad-scale application by researchers. Naturally occurring toe loss in the field provided a context against which to examine this alternative identification method and revealed the need to further investigate the consequences of routine toe clipping, as this practice appears to diminish survivorship.
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Kollin, Lori. "Comparing the Effects of Static and Dynamic Signals during Multiple Schedules." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6882.
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Functional communication training (FCT) is an effective procedure to teach a functional communication response (FCR) and decrease problem behavior. However, there are limitations to FCT. These limitations include excessive manding (e.g., requesting items at a high rate) and manding at inappropriate times (e.g., requesting attention when caregiver is driving). Multiple schedules using static signals (e.g., colored cards) have been used to decrease these limitations while maintaining appropriate levels of the FCRs and low levels of problem behavior. Moreover, dynamic signals have been used to maintain low levels of problem behavior and appropriate levels of alternative responses outside of a multiple schedule format. Presently, no research has examined the comparison of static and dynamic signals to address the limitations of FCT. Therefore, the purpose of the current study is to compare the effects of static and dynamic signals (i.e., Time Timer®) during multiple schedules consisting of reinforcement and extinction components following FCT.
Key words: functional communication training, multiple schedules, static signals, Time Timers®
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Borowiak, Kamila. "Brain Mechanisms for the Perception of Visual and Auditory Communication Signals – Insights from Autism Spectrum Disorder." Doctoral thesis, Humboldt-Universität zu Berlin, 2020. http://dx.doi.org/10.18452/21634.
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Kommunikation ist allgegenwärtig in unserem Alltag. Personen mit einer Autismus-Spektrum-Störung (ASS) zeigen soziale Schwierigkeiten und beim Erkennen von Kommunikationssignalen von Gesicht und Stimme. Da derartige Schwierigkeiten die Lebensqualität beeinträchtigen können, ist ein tiefgreifendes Verständnis der zugrundeliegenden Mechanismen von großer Bedeutung. In der vorliegenden Dissertation befasste ich mich mit sensorischen Gehirnmechanismen, die der Verarbeitung von Kommunikationssignalen zugrunde liegen und, die in der Forschung zu ASS bisher wenig Beachtung fanden. Erstens untersuchte ich, ob eine intranasale Gabe von Oxytocin die Erkennung der Stimmenidentität beeinflussen, und ihre Auffälligkeiten bei Personen mit ASS mildern kann. Zweitens erforschte ich, welche neuronalen Prozesse den Schwierigkeiten in der Wahrnehmung visueller Sprache in ASS zugrunde liegen, da bisherige Evidenz nur auf Verhaltensdaten basierte. Diese Fragestellungen beantwortete ich mit Hilfe von funktioneller Magnetresonanztomographie, Eyetracking und Verhaltenstestungen. Die Ergebnisse der Dissertation liefern neuartige Erkenntnisse, die für Personen mit ASS und typisch entwickelte Personen von hoher Relevanz sind. Erstens bestätigen sie die Annahmen, dass atypische sensorische Mechanismen für unser Verständnis der sozialen Schwierigkeiten in ASS grundlegend sind. Sie zeigen, dass atypische Funktionen sensorischer Gehirnregionen den Kommunikationseinschränkungen in ASS zugrunde liegen und die Effektivität von Interventionen beeinflussen, die jene Schwierigkeiten vermindern sollen. Zweitens liefern die Ergebnisse empirische Evidenz für theoretische Annahmen darüber, wie das typisch entwickelte Gehirn visuelle Kommunikationssignale verarbeitet. Diese Erkenntnisse erweitern maßgeblich unser aktuelles Wissen und zukünftige Forschungsansätze zur zwischenmenschlichen Kommunikation. Außerdem können sie neue Interventionsansätze zur Förderung von Kommunikationsfähigkeiten hervorbringen.Communication is ubiquitous in our everyday life. Yet, individuals with autism spectrum disorder (ASD) have difficulties in social interactions and to recognize socially relevant signals from the face and the voice. Such impairments can vastly affect the quality of life - a profound understanding of the mechanisms behind these difficulties is thus strongly required. In the current dissertation, I focused on sensory brain mechanisms that underlie the perception of emotionally neutral communication signals that so far have gained little attention in ASD research. I studied the malleability of voice-identity processing using intranasal administration of oxytocin, and thus the potential to alleviate voice-identity recognition impairments in ASD. Furthermore, I investigated brain mechanisms that underlie recognition difficulties for visual speech in ASD, as until now evidence on visual-speech recognition in ASD was limited to behavioral findings. I applied methods of functional magnetic resonance imaging, eye tracking, and behavioral testing. The contribution of the present dissertation is twofold. First, the findings corroborate the view that atypical sensory perception is a critical cornerstone for understanding of social difficulties in ASD. Dysfunction of visual and auditory sensory brain regions might contribute to difficulties in processing aspects of communication signals in ASD and modulate the efficacy of interventions for improving the behavioral deficits. Second, the findings deliver empirical support for a recent theoretical model of how the typically developing brain perceives dynamic faces. This improved our current knowledge about brain processing of visual communication signals in the typically developing population. Advanced scientific knowledge about human communication, as provided in the current dissertation, propels further empirical research and development of clinical interventions that aim to promote communication abilities in affected individuals.
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Lima, Alice de Moura. "Production and perception of acoustic signals in captive bottlenose dolphins (Tursiops truncatus) : contextual use of social signals and recognition of artificial labels." Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1B048/document.
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Les études de bioacoustique animale, qui reposent traditionnellement sur des modèles primates non humains et oiseaux chanteurs, convergent vers l'idée que la vie sociale serait la principale force motrice de l'évolution de la complexité de la communication. La comparaison avec les cétacés est également particulièrement intéressante d'un point de vue évolutif. Ce sont des mammifères qui forment des liens sociaux complexes, ont des capacités de plasticité acoustique, mais qui ont dû s'adapter à la vie marine, faisant de l'habitat une autre force de sélection déterminante. Leur habitat naturel impose des contraintes sur la production sonore, l'utilisation et la perception des signaux acoustiques, mais, de la même manière, limite les observations éthologiques. Etudier les cétacés captifs devient alors une source importante de connaissances sur ces animaux. Au-delà de l'analyse des structures acoustiques, l'étude des contextes sociaux dans lesquels les différentes vocalisations sont utilisées est essentielle à la compréhension de la communication vocale. Par rapport aux primates et aux oiseaux, la fonction sociale des signaux acoustiques des dauphins reste largement méconnue. En outre, les adaptations morpho-anatomiques de l’appareil vocal et auditif des cétacés à une vie sous-marine sont uniques dans le règne animal. Leur capacité à percevoir les sons produits dans l'air reste controversée en raison du manque de démonstrations expérimentales. Les objectifs de cette thèse étaient, d'une part, d'explorer l'utilisation contextuelle spontanée des signaux acoustiques dans un groupe captif de dauphins et, d'autre part, de tester expérimentalement les capacités à percevoir les sons sous l’eau comme dans l’air. Notre première étude observationnelle décrit la vie quotidienne de dauphins en captivité et montre que les signaux vocaux reflètent, à grande échelle, la répartition temporelle des activités sociales et non sociales dans un établissement sous contrôle humain. Notre deuxième étude met l'accent sur le contexte d’émission des trois principales catégories acoustiques précédemment identifiées dans le répertoire vocal des dauphins, à savoir les sifflements, les sons pulsés et les séries de clics. Nous avons trouvé des associations préférentielles entre chaque catégorie vocale et certains types d'interactions sociales ainsi que des combinaisons sonores non aléatoires et également dépendantes du contexte. Notre troisième étude a testé expérimentalement, dans des conditions standardisées, la réponse des dauphins à des « labels » acoustiques individuels donnés par l’homme et diffusés dans l’eau et dans l’air. Nous avons constaté que les dauphins peuvent reconnaître et réagir uniquement à leur propre « label » sonore, même lorsqu'il est diffusé dans l’air. En plus de confirmer l'audition aérienne, ces résultats soutiennent l’idée que les dauphins possèdent une notion d'identité. Dans l'ensemble, les résultats obtenus au cours de cette thèse suggèrent que certains signaux sociaux dans le répertoire des dauphins peuvent être utilisés pour communiquer des informations spécifiques sur les contextes comportementaux des individus impliqués et que les individus sont capables de généraliser leur concept d'identité à des signaux générés par l'hommeStudies on animal bioacoustics, traditionally relying on non-human primate and songbird models, converge towards the idea that social life appears as the main driving force behind the evolution of complex communication. Comparisons with cetaceans is also particularly interesting from an evolutionary point of view. They are indeed mammals forming complex social bonds, with abilities in acoustic plasticity, but that had to adapt to marine life, making habitat another determining selection force. Their natural habitat constrains sound production, usage and perception but, in the same way, constrains ethological observations making studies of captive cetaceans an important source of knowledge on these animals. Beyond the analysis of acoustic structures, the study of the social contexts in which the different vocalizations are used is essential to the understanding of vocal communication. Compared to primates and birds, the social function of dolphins’ acoustic signals remains largely misunderstood. Moreover, the way cetaceans’ vocal apparatus and auditory system adapted morphoanatomically to an underwater life is unique in the animal kingdom. But their ability to perceive sounds produced in the air remains controversial due to the lack of experimental demonstrations. The objectives of this thesis were, on the one hand, to explore the spontaneous contextual usage of acoustic signals in a captive group of bottlenose dolphins and, on the other hand, to test experimentally underwater and aerial abilities in auditory perception. Our first observational study describes the daily life of our dolphins in captivity, and shows that vocal signalling reflects, at a large scale, the temporal distribution of social and non-social activities in a facility under human control. Our second observational study focuses on the immediate context of emission of the three main acoustic categories previously identified in the dolphins’ vocal repertoire, i.e. whistles, burst-pulses and click trains. We found preferential associations between each vocal category and specific types of social interactions and identified context-dependent patterns of sound combinations. Our third study experimentally tested, under standardized conditions, the response of dolphins to human-made individual sound labels broadcast under and above water. We found that dolphins were able to recognize and to react only to their own label, even when broadcast in the air. Apart from confirming aerial hearing, these findings go in line with studies supporting that dolphins possess a concept of identity. Overall, the results obtained during this thesis suggest that some social signals in the dolphin repertoire can be used to communicate specific information about the behavioural contexts of the individuals involved and that individuals are able to generalize their concept of identity for human-generated signals
Books on the topic "Social communication signal"
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La souveraineté numérique. Paris: Stock, 2014.
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G, Barker Philip, and Yazdani Masoud 1955-, eds. Iconic communication. Bristol, UK: Intellect, 2000.
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Michael, Woods. Ancient communication technology: From hieroglyphics to scrolls. Minneapolis: Twenty-First Century Books, 2011.
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Buyens, Maurice. Nederlands met gebaren: Taalkundige, sociale en opvoedkundige aspecten. Gent: M. Buyens, 1987.
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Honest signals: How they shape our world. Cambridge, MA: MIT Press, 2008.
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Reiman, Tonya. The body language of dating: Read his signals, send your own, and get the guy. New York: Gallery, 2011.
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T︠S︡areva, E. A. Simvol v uslovii︠a︡kh izmenenii︠a︡ sot︠s︡iokulʹturnogo bytii︠a︡. Kursk: Kurskiĭ gos. universitet, 2006.
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Kenton, O'Hara, ed. Public and situated displays: Social and interactional aspects of shared display technologies. Dordrecht: Kluwer Academic Pub., 2003.
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Weltmarkt der Bilder: Eine Philosophie der Visiotype. Stuttgart: Klett-Cotta, 1997.
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L, Aymard Louis, and Winstanley Christine, eds. Reflections on the language and culture of deaf Americans. Dubuque, IA: Kendall/Hunt, 1992.
Find full textBook chapters on the topic "Social communication signal"
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Crossan, Andrew, Grégoire Lefebvre, Sophie Zijp-Rouzier, and Roderick Murray-Smith. "A Multimodal Contact List to Enhance Remote Communication." In Mobile Social Signal Processing, 84–100. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54325-8_9.
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Kalaichelvi, N., and K. S. Easwarakumar. "A Comprehensive Survey on Community Deception Approaches in Social Networks." In Computer, Communication, and Signal Processing, 163–73. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-11633-9_13.
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Liang, Tianqi, Zhuoming Li, Mengqi Wang, and Xiaojie Fang. "Design of Radar-Communication Integrated Signal Based on OFDM." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 108–19. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22968-9_10.
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Kubo, Kenta, Shigeo Naoi, Yozo Takeda, Ryusuke Miyamoto, Takao Hara, and Minoru Okada. "Compensations of Nonlinear Effects of TWTA for Signal Super-Positioning Satellite Communication Systems." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 44–59. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13618-4_4.
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Liu, Wu-lin, Feng Jin, Hai-guang He, and Yu-xuan Chen. "Weak Signal Acquisition and Recognition Method for Mobile Communication Based on Information Fusion." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 62–73. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-94554-1_6.
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Hu, Yan-song. "Intelligent Recognition Method of Short Wave Communication Transmission Signal Based on the Blind Separation Algorithm." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 469–77. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-36402-1_50.
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Harper, Richard H. R. "The Metaphysics of Communications Overload." In Mobile Social Signal Processing, 42–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54325-8_5.
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Liu, Chi-Yu, and Chia-Wei Lee. "Social Distance Detection Using Wireless Signal in Social Networks." In Communications in Computer and Information Science, 37–41. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-7913-1_3.
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D’Errico, Francesca, and Isabella Poggi. "Dominance and its signals." In Social Influence, Power, and Multimodal Communication, 69–81. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003029274-6.
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Johnston, Robert E. "Olfactory and Vomeronasal Mechanisms of Social Communication in Golden Hamsters." In Chemical Signals in Vertebrates 6, 515–22. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4757-9655-1_79.
Full textConference papers on the topic "Social communication signal"
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Gracia, S. V. Juno Bella, J. Godwin Ponsam, R. Vasanthi, and E. Meera. "Social Credit Score System." In 2021 5th International Conference on Computer, Communication and Signal Processing (ICCCSP). IEEE, 2021. http://dx.doi.org/10.1109/icccsp52374.2021.9465514.
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Soumya, T. R., and S. Revathy. "Survey on Threats in Online Social Media." In 2018 International Conference on Communication and Signal Processing (ICCSP). IEEE, 2018. http://dx.doi.org/10.1109/iccsp.2018.8524200.
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Bhat, Aditya, T. Santosh Kumar, Udith Manoha Kalburgi, E. Sandeep Kumar, Viswanath Talasila, T. V. Suresh Kumar, Naphtali Rishe, and S. M. Kusuma. "Significant Social Factors of Real Estate Investment." In 2018 International Conference on Communication and Signal Processing (ICCSP). IEEE, 2018. http://dx.doi.org/10.1109/iccsp.2018.8524289.
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Yeshasvi, Mogula, Veeramachaneni Bind, and Subetha T. "Social Distance Capturing and Alerting Tool." In 2021 3rd International Conference on Signal Processing and Communication (ICPSC). IEEE, 2021. http://dx.doi.org/10.1109/icspc51351.2021.9451695.
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Zhang, Teng, Cun Wei, Jun Wang, and Lei Wang. "Social Awareness-Based Collaboration Interferes With Physical Layer Secure Communication." In 2021 13th International Conference on Wireless Communications and Signal Processing (WCSP). IEEE, 2021. http://dx.doi.org/10.1109/wcsp52459.2021.9613696.
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Simsek, Mustafa, Ibrahim Delibalta, Lemi Baruh, and Suleyman S. Kozat. "Mathematical model of causal inference in Social Networks." In 2016 24th Signal Processing and Communication Application Conference (SIU). IEEE, 2016. http://dx.doi.org/10.1109/siu.2016.7495952.
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Devi, P. Suthanthira, and S. Karthika. "Veracity Analysis of Rumors in Social Media." In 2018 International Conference on Computer, Communication, and Signal Processing (ICCCSP). IEEE, 2018. http://dx.doi.org/10.1109/icccsp.2018.8452852.
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Kakisim, Arzu, Yavuz Oguz Ipek, and Ibrahim Sogukpinar. "Suspect and popular tag detection model for social media." In 2016 24th Signal Processing and Communication Application Conference (SIU). IEEE, 2016. http://dx.doi.org/10.1109/siu.2016.7495884.
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Ince, Kursat, and Zeki Erdem. "Analyzing medium-size information technology department using social network analysis." In 2016 24th Signal Processing and Communication Application Conference (SIU). IEEE, 2016. http://dx.doi.org/10.1109/siu.2016.7496017.
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Namrutha Sridhar, B. V., K. Mrinalini, and P. Vijayalakshmi. "Data Annotation and Multi-Emotion Classification for Social Media Text." In 2020 International Conference on Communication and Signal Processing (ICCSP). IEEE, 2020. http://dx.doi.org/10.1109/iccsp48568.2020.9182362.
Full textReports on the topic "Social communication signal"
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Yatsymirska, Mariya. SOCIAL EXPRESSION IN MULTIMEDIA TEXTS. Ivan Franko National University of Lviv, February 2021. http://dx.doi.org/10.30970/vjo.2021.49.11072.
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The article investigates functional techniques of extralinguistic expression in multimedia texts; the effectiveness of figurative expressions as a reaction to modern events in Ukraine and their influence on the formation of public opinion is shown. Publications of journalists, broadcasts of media resonators, experts, public figures, politicians, readers are analyzed. The language of the media plays a key role in shaping the worldview of the young political elite in the first place. The essence of each statement is a focused thought that reacts to events in the world or in one’s own country. The most popular platform for mass information and social interaction is, first of all, network journalism, which is characterized by mobility and unlimited time and space. Authors have complete freedom to express their views in direct language, including their own word formation. Phonetic, lexical, phraseological and stylistic means of speech create expression of the text. A figurative word, a good aphorism or proverb, a paraphrased expression, etc. enhance the effectiveness of a multimedia text. This is especially important for headlines that simultaneously inform and influence the views of millions of readers. Given the wide range of issues raised by the Internet as a medium, research in this area is interdisciplinary. The science of information, combining language and social communication, is at the forefront of global interactions. The Internet is an effective source of knowledge and a forum for free thought. Nonlinear texts (hypertexts) – «branching texts or texts that perform actions on request», multimedia texts change the principles of information collection, storage and dissemination, involving billions of readers in the discussion of global issues. Mastering the word is not an easy task if the author of the publication is not well-read, is not deep in the topic, does not know the psychology of the audience for which he writes. Therefore, the study of media broadcasting is an important component of the professional training of future journalists. The functions of the language of the media require the authors to make the right statements and convincing arguments in the text. Journalism education is not only knowledge of imperative and dispositive norms, but also apodictic ones. In practice, this means that there are rules in media creativity that are based on logical necessity. Apodicticity is the first sign of impressive language on the platform of print or electronic media. Social expression is a combination of creative abilities and linguistic competencies that a journalist realizes in his activity. Creative self-expression is realized in a set of many important factors in the media: the choice of topic, convincing arguments, logical presentation of ideas and deep philological education. Linguistic art, in contrast to painting, music, sculpture, accumulates all visual, auditory, tactile and empathic sensations in a universal sign – the word. The choice of the word for the reproduction of sensory and semantic meanings, its competent use in the appropriate context distinguishes the journalist-intellectual from other participants in forums, round tables, analytical or entertainment programs. Expressive speech in the media is a product of the intellect (ability to think) of all those who write on socio-political or economic topics. In the same plane with him – intelligence (awareness, prudence), the first sign of which (according to Ivan Ogienko) is a good knowledge of the language. Intellectual language is an important means of organizing a journalistic text. It, on the one hand, logically conveys the author’s thoughts, and on the other – encourages the reader to reflect and comprehend what is read. The richness of language is accumulated through continuous self-education and interesting communication. Studies of social expression as an important factor influencing the formation of public consciousness should open up new facets of rational and emotional media broadcasting; to trace physical and psychological reactions to communicative mimicry in the media. Speech mimicry as one of the methods of disguise is increasingly becoming a dangerous factor in manipulating the media. Mimicry is an unprincipled adaptation to the surrounding social conditions; one of the most famous examples of an animal characterized by mimicry (change of protective color and shape) is a chameleon. In a figurative sense, chameleons are called adaptive journalists. Observations show that mimicry in politics is to some extent a kind of game that, like every game, is always conditional and artificial.
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Perdigão, Rui A. P. Information physics and quantum space technologies for natural hazard sensing, modelling and prediction. Meteoceanics, September 2021. http://dx.doi.org/10.46337/210930.
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Disruptive socio-natural transformations and climatic change, where system invariants and symmetries break down, defy the traditional complexity paradigms such as machine learning and artificial intelligence. In order to overcome this, we introduced non-ergodic Information Physics, bringing physical meaning to inferential metrics, and a coevolving flexibility to the metrics of information transfer, resulting in new methods for causal discovery and attribution. With this in hand, we develop novel dynamic models and analysis algorithms natively built for quantum information technological platforms, expediting complex system computations and rigour. Moreover, we introduce novel quantum sensing technologies in our Meteoceanics satellite constellation, providing unprecedented spatiotemporal coverage, resolution and lead, whilst using exclusively sustainable materials and processes across the value chain. Our technologies bring out novel information physical fingerprints of extreme events, with recently proven records in capturing early warning signs for extreme hydro-meteorologic events and seismic events, and do so with unprecedented quantum-grade resolution, robustness, security, speed and fidelity in sensing, processing and communication. Our advances, from Earth to Space, further provide crucial predictive edge and added value to early warning systems of natural hazards and long-term predictions supporting climatic security and action.
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African Open Science Platform Part 1: Landscape Study. Academy of Science of South Africa (ASSAf), 2019. http://dx.doi.org/10.17159/assaf.2019/0047.
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This report maps the African landscape of Open Science – with a focus on Open Data as a sub-set of Open Science. Data to inform the landscape study were collected through a variety of methods, including surveys, desk research, engagement with a community of practice, networking with stakeholders, participation in conferences, case study presentations, and workshops hosted. Although the majority of African countries (35 of 54) demonstrates commitment to science through its investment in research and development (R&D), academies of science, ministries of science and technology, policies, recognition of research, and participation in the Science Granting Councils Initiative (SGCI), the following countries demonstrate the highest commitment and political willingness to invest in science: Botswana, Ethiopia, Kenya, Senegal, South Africa, Tanzania, and Uganda. In addition to existing policies in Science, Technology and Innovation (STI), the following countries have made progress towards Open Data policies: Botswana, Kenya, Madagascar, Mauritius, South Africa and Uganda. Only two African countries (Kenya and South Africa) at this stage contribute 0.8% of its GDP (Gross Domestic Product) to R&D (Research and Development), which is the closest to the AU’s (African Union’s) suggested 1%. Countries such as Lesotho and Madagascar ranked as 0%, while the R&D expenditure for 24 African countries is unknown. In addition to this, science globally has become fully dependent on stable ICT (Information and Communication Technologies) infrastructure, which includes connectivity/bandwidth, high performance computing facilities and data services. This is especially applicable since countries globally are finding themselves in the midst of the 4th Industrial Revolution (4IR), which is not only “about” data, but which “is” data. According to an article1 by Alan Marcus (2015) (Senior Director, Head of Information Technology and Telecommunications Industries, World Economic Forum), “At its core, data represents a post-industrial opportunity. Its uses have unprecedented complexity, velocity and global reach. As digital communications become ubiquitous, data will rule in a world where nearly everyone and everything is connected in real time. That will require a highly reliable, secure and available infrastructure at its core, and innovation at the edge.” Every industry is affected as part of this revolution – also science. An important component of the digital transformation is “trust” – people must be able to trust that governments and all other industries (including the science sector), adequately handle and protect their data. This requires accountability on a global level, and digital industries must embrace the change and go for a higher standard of protection. “This will reassure consumers and citizens, benefitting the whole digital economy”, says Marcus. A stable and secure information and communication technologies (ICT) infrastructure – currently provided by the National Research and Education Networks (NRENs) – is key to advance collaboration in science. The AfricaConnect2 project (AfricaConnect (2012–2014) and AfricaConnect2 (2016–2018)) through establishing connectivity between National Research and Education Networks (NRENs), is planning to roll out AfricaConnect3 by the end of 2019. The concern however is that selected African governments (with the exception of a few countries such as South Africa, Mozambique, Ethiopia and others) have low awareness of the impact the Internet has today on all societal levels, how much ICT (and the 4th Industrial Revolution) have affected research, and the added value an NREN can bring to higher education and research in addressing the respective needs, which is far more complex than simply providing connectivity. Apart from more commitment and investment in R&D, African governments – to become and remain part of the 4th Industrial Revolution – have no option other than to acknowledge and commit to the role NRENs play in advancing science towards addressing the SDG (Sustainable Development Goals). For successful collaboration and direction, it is fundamental that policies within one country are aligned with one another. Alignment on continental level is crucial for the future Pan-African African Open Science Platform to be successful. Both the HIPSSA ((Harmonization of ICT Policies in Sub-Saharan Africa)3 project and WATRA (the West Africa Telecommunications Regulators Assembly)4, have made progress towards the regulation of the telecom sector, and in particular of bottlenecks which curb the development of competition among ISPs. A study under HIPSSA identified potential bottlenecks in access at an affordable price to the international capacity of submarine cables and suggested means and tools used by regulators to remedy them. Work on the recommended measures and making them operational continues in collaboration with WATRA. In addition to sufficient bandwidth and connectivity, high-performance computing facilities and services in support of data sharing are also required. The South African National Integrated Cyberinfrastructure System5 (NICIS) has made great progress in planning and setting up a cyberinfrastructure ecosystem in support of collaborative science and data sharing. The regional Southern African Development Community6 (SADC) Cyber-infrastructure Framework provides a valuable roadmap towards high-speed Internet, developing human capacity and skills in ICT technologies, high- performance computing and more. The following countries have been identified as having high-performance computing facilities, some as a result of the Square Kilometre Array7 (SKA) partnership: Botswana, Ghana, Kenya, Madagascar, Mozambique, Mauritius, Namibia, South Africa, Tunisia, and Zambia. More and more NRENs – especially the Level 6 NRENs 8 (Algeria, Egypt, Kenya, South Africa, and recently Zambia) – are exploring offering additional services; also in support of data sharing and transfer. The following NRENs already allow for running data-intensive applications and sharing of high-end computing assets, bio-modelling and computation on high-performance/ supercomputers: KENET (Kenya), TENET (South Africa), RENU (Uganda), ZAMREN (Zambia), EUN (Egypt) and ARN (Algeria). Fifteen higher education training institutions from eight African countries (Botswana, Benin, Kenya, Nigeria, Rwanda, South Africa, Sudan, and Tanzania) have been identified as offering formal courses on data science. In addition to formal degrees, a number of international short courses have been developed and free international online courses are also available as an option to build capacity and integrate as part of curricula. The small number of higher education or research intensive institutions offering data science is however insufficient, and there is a desperate need for more training in data science. The CODATA-RDA Schools of Research Data Science aim at addressing the continental need for foundational data skills across all disciplines, along with training conducted by The Carpentries 9 programme (specifically Data Carpentry 10 ). Thus far, CODATA-RDA schools in collaboration with AOSP, integrating content from Data Carpentry, were presented in Rwanda (in 2018), and during17-29 June 2019, in Ethiopia. Awareness regarding Open Science (including Open Data) is evident through the 12 Open Science-related Open Access/Open Data/Open Science declarations and agreements endorsed or signed by African governments; 200 Open Access journals from Africa registered on the Directory of Open Access Journals (DOAJ); 174 Open Access institutional research repositories registered on openDOAR (Directory of Open Access Repositories); 33 Open Access/Open Science policies registered on ROARMAP (Registry of Open Access Repository Mandates and Policies); 24 data repositories registered with the Registry of Data Repositories (re3data.org) (although the pilot project identified 66 research data repositories); and one data repository assigned the CoreTrustSeal. Although this is a start, far more needs to be done to align African data curation and research practices with global standards. Funding to conduct research remains a challenge. African researchers mostly fund their own research, and there are little incentives for them to make their research and accompanying data sets openly accessible. Funding and peer recognition, along with an enabling research environment conducive for research, are regarded as major incentives. The landscape report concludes with a number of concerns towards sharing research data openly, as well as challenges in terms of Open Data policy, ICT infrastructure supportive of data sharing, capacity building, lack of skills, and the need for incentives. Although great progress has been made in terms of Open Science and Open Data practices, more awareness needs to be created and further advocacy efforts are required for buy-in from African governments. A federated African Open Science Platform (AOSP) will not only encourage more collaboration among researchers in addressing the SDGs, but it will also benefit the many stakeholders identified as part of the pilot phase. The time is now, for governments in Africa, to acknowledge the important role of science in general, but specifically Open Science and Open Data, through developing and aligning the relevant policies, investing in an ICT infrastructure conducive for data sharing through committing funding to making NRENs financially sustainable, incentivising open research practices by scientists, and creating opportunities for more scientists and stakeholders across all disciplines to be trained in data management.