Academic literature on the topic 'Interhemispheric transfer'

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Journal articles on the topic "Interhemispheric transfer"

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Grabe, H. J., C. Spitzer, C. Willert, T. Rizos, B. Möller, and H. J. Freyberger. "Interhemispheric transfer in alexithymia." European Psychiatry 17 (May 2002): 82. http://dx.doi.org/10.1016/s0924-9338(02)80376-5.

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Brincat, Scott L., Jacob A. Donoghue, Meredith K. Mahnke, Simon Kornblith, Mikael Lundqvist, and Earl K. Miller. "Interhemispheric transfer of working memories." Neuron 109, no. 6 (March 2021): 1055–66. http://dx.doi.org/10.1016/j.neuron.2021.01.016.

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Parker, James D. A., Michelle L. Keightley, Carlyle T. Smith, and Graeme J. Taylor. "Interhemispheric Transfer Deficit in Alexithymia." Psychosomatic Medicine 61, no. 4 (1999): 464–68. http://dx.doi.org/10.1097/00006842-199907000-00010.

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Wishart, Heather A., Esther Strauss, Michaell Hunter, and Alexander Moll. "Interhemispheric transfer in multiple sclerosis." Journal of Clinical and Experimental Neuropsychology 17, no. 6 (December 1995): 937–40. http://dx.doi.org/10.1080/01688639508402442.

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Caille, S. "Interhemispheric Transfer without Forebrain Commissures." Neurocase 5, no. 2 (April 1, 1999): 109–18. http://dx.doi.org/10.1093/neucas/5.2.109.

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Caille, S. "Interhemispheric transfer without forebrain commissures." Neurocase 5, no. 2 (April 1, 1999): 118. http://dx.doi.org/10.1093/neucas/5.2.118.

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Callle, S., A. Schiavetto, F. Andermannl, A. Bastosl, E. de Guise, and M. Lassonde. "Interhemispheric transfer without forebrain commissures." Neurocase 5, no. 2 (March 1999): 109–18. http://dx.doi.org/10.1080/13554799908415475.

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Keightley, Michelle L., Graeme J. Taylor, James D. A. Parker, and Carlyle T. Smith. "INTERHEMISPHERIC TRANSFER DEFICIT IN ALEXITHYMIA." Psychosomatic Medicine 60, no. 1 (1998): 97. http://dx.doi.org/10.1097/00006842-199801000-00042.

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Semprini, Gabriele, Davide Coggi, and Michael C. Corballis. "Interhemispheric Transfer Time in Sportsmen." Journal of Motor Behavior 44, no. 5 (September 2012): 373–77. http://dx.doi.org/10.1080/00222895.2012.724476.

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Braun, C. M. J., and L. Riopel. "Interhemispheric Transfer in Down’s Syndrome." Behavioural Neurology 5, no. 1 (1992): 43–46. http://dx.doi.org/10.1155/1992/480897.

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Callosal agenesics and callosotomized epileptics manifest markedly increasing simple visual reaction time (SVRT) from conditions of ipsilateral to contralateral stimulus-response relation (SRR). In the contralateral SRR, a response is presumed possible because of presence of other commissures (anterior, intercollicular). The SRR effect is prolonged presumably because the remaining commissures are less efficient than the corpus callosum in relaying necessary visual or motor information. Consequently, the SRR effect is believed to correspond to callosal relay time (CRT) in the normal subject. However, both callosal agenesics and callosotomy patients manifest general slowing of SVRT in addition to a prolonged SRR effect. These patients have massive extra-callosal damage which could plausibly cause both the SVRT and the CUD prolongation. If such were the case, the CRT inference would be in jeopardy. A test of the CRT inference is therefore required where patients with massive diffuse extra-callosal brain damage and normal callosi would show marked general SVRT prolongation and a normal SRR effect. Four trisomy-21 (T21) males were compared to age and sex-matched normal controls. General SVRT was highly significantly prolonged in T21, but the CUD was nearly identical in both groups.
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Dissertations / Theses on the topic "Interhemispheric transfer"

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McNeely, Heather (Heather Eva) Carleton University Dissertation Psychology. "The Interhemispheric transfer of emotional speech in the intact brain." Ottawa, 1996.

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Eacott, M. J. "The role of the anterior corpus callosum in interhemispheric transfer in monkeys." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235024.

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Knight, Ann Marie. "Interhemispheric transfer of praxis information using probable Alzheimer's disease as a model for disconnection apraxia." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0010061.

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Ellis, Monica U. "Chronic Outcomes in Interhemispheric Transfer Time Among Children with Moderate to Severe Traumatic Brain Injury." Thesis, Fuller Theological Seminary, School of Psychology, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10274421.

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Background: Each year, nearly ½ million youth under 15 years old sustains a traumatic brain injury (TBI). Although racial disparities have not been found in pediatric TBI (Howard, Joseph, & Natale, 2005), the consequences of TBI still remain a serious public health concern. Moderate and severe TBI (msTBI) frequently result in diffuse axonal injury and other white matter damage. The corpus callosum (CC) is particularly vulnerable to injury, though the impact of this damage may not be apparent until several months-to-years following injury. Damage to the CC has been associated with impaired neurocognitive functioning in youth with TBI.

Method: The investigator for this dissertation study utilized event-related potentials, an electrophysiological measure of neural processing, to measure interhemispheric transfer time (IHTT) as an indicator of CC integrity in 31 youth with msTBI at the chronic phase of recovery (i.e., 13-18 months post injury), compared with 20 healthy control youth. Neurocognitive performance was also examined among these groups.

Results: At the chronic phase of recovery, TBI group youth overall demonstrated slower IHTTs and worse neurocognitive functioning than youth in the control group. Only a subset of msTBI group children had IHTTs that were outside the range of the healthy controls; however, this impairment in interhemispheric communication was not significantly associated with neurocognitive performance. A pattern of differential impairments emerged between TBI group participants. Chronic-phase outcomes in IHTT were correlated with the presence of neurosurgery at the acute phase of injury.

Conclusion: Overall, this study demonstrated that msTBI results in longstanding differences in interhemispheric and neurocognitive functioning, but injured children are differentially impacted. Functional reorganization resulting from neuroplasticity may help explain these results among children with slow IHTT but intact neurocognitive functioning. However, interpretations regarding the course of recovery could not be made due to the cross-sectional methodology used in this study. Investigators conducting future studies might explore additional outcomes associated with interhemispheric and neurocognitive functioning following msTBI at the chronic phase of recovery, including corresponding structural and metabolic changes using advanced imaging techniques.

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Chaumillon, Romain. "Dominance oculaire : implications neurophysiologiques et conséquences au niveau de la visuo-motricité." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4724/document.

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Les informations visuelles sont prépondérantes pour guider le comportement. Malgré une bonne connaissance du système visuel, un phénomène représentant une latéralisation de celui-ci, le phénomène de dominance oculaire (DO), reste mal compris et finalement peu étudié. Nos travaux de thèse ont permis de démontrer que cette DO exerce une large influence sur différentes étapes de la transformation des informations visuelles en mouvements manuels ou oculaires et que celle-ci s’exprime en interaction avec d’autres latéralisations du système nerveux telles que les latéralisations manuelle et des réseaux attentionnels. Nous montrons également son influence sur les processus de transfert d'information entre les deux hémisphères du cerveau. Enfin, nos travaux comportent des retombées cliniques directes : ils introduisent une méthode de quantification plus précise de la DO utilisable par les cliniciens pour une meilleure réussite de certaines techniques chirurgicales. En conclusion, nous montrons que la DO constitue un aspect important de la latéralisation du cerveau humain, relativement négligé jusqu’à présent
Processing of visual information from the environment is preponderant for the successful performance of many motor behaviors. Despite a good knowledge of the visual system, a phenomenon corresponding to a lateralization of this system, called eye dominance (ED), remains not well understood and poorly studied. Our thesis demonstrated that ED has a widespread influence on different levels of the transformation of visual information into manual or ocular movements and interacts with other lateralizations of the central nervous system such as the manual and attentional networks. We also show the influence of ED on the process of information transfer between the two hemispheres of the brain. Finally, our work has direct clinical implications: it introduces a more accurate method of quantifying ED which is usable by clinicians for better success of some surgical techniques. In sum, we show that ED is an important aspect of the human brain lateralization which has been overlooked until now
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Cherbuin, Nicolas, and n. cherbuin@anu edu au. "Hemispheric interaction: when and why is yours better than mine?" The Australian National University. Faculty of Science, 2006. http://thesis.anu.edu.au./public/adt-ANU20060317.135525.

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The performance of most tasks requires some interaction between the cerebral hemispheres. Despite this fact, research has focused on demonstrating that each hemisphere is specialised for certain processes and has largely neglected this interaction. ¶ Recent research has recognised the need for a better understanding of how resources are shared between the cerebral hemispheres. While these studies have shed light on factors external to the participants being tested, such as the type of task and stimuli used, presentation times, and different measurement methods, they have neglected variables that differ between individuals. The studies reported here focused on factors internal to the participants. They include sex, age, handedness, functional lateralisation, practice, attention, and hemispheric activation, which vary between individuals or within individuals across time, and have been shown to influence the structure and morphology of the corpus callosum which is the main pathway for hemispheric interactions. ¶ This thesis examines the relationship of these variables to the efficiency of hemispheric interactions. ¶ A literature review of the factors affecting hemispheric interactions and interhemispheric transfer is presented in Chapter 1, and methodological issues relating to the measurement of these variables in Chapter 2. Based upon this research, two tasks, the Poffenberger paradigm and a letter-matching task, were selected to assess interhemispheric transfer time and hemispheric interactions, respectively, and to investigate the relationship between these two variables. ¶ Chapters 3 and 4 present the findings of the principal study, using a large sample of participants and regression analysis, which demonstrate that both faster interhemispheric transfer and more extreme left-handedness are associated with greater efficiency of hemispheric interaction. Surprisingly, other factors which were expected to influence hemispheric interactions (age, sex, functional lateralisation, and attention) did not have a significant effect on this variable. ¶ A strong practice effect found in the task used in Chapters 3 and 4 is analysed in Chapter 5. Contrary to previous findings, this practice effect seems not to be due to a shift from sequential, rule-based processing to memory-retrieval, but rather, is a more general practice effect consistent with progressively more efficient use of neural resources. ¶ Chapter 6 shows that individuals with dyslexia not only demonstrate an abnormally fast interhemispheric transfer, but also attentional deficits, due probably to decreased efficiency in hemispheric interactions. Because some clinical populations, such as individuals with dyslexia, have been shown to have hemispheric interaction deficits, the study of such clinical samples can provide valuable information about the relationship between hemispheric interactions and other individual variables. ¶ In Chapter 7 it is demonstrated that both latent and induced patterns of lateralised hemispheric activation affect hemispheric interactions. This suggests that assessment of hemispheric activation is important not only in this field, but probably also more generally in neuropsychological research. These findings highlight the need for a simple, inexpensive measure of hemispheric activation that can be applied routinely in cognitive experiments. ¶ Chapter 8 presents a new technique to measure lateralised brain activation in typical psychological experiments using functional tympanic membrane thermometry (fTMT). This measure relies on the measurement of ear membrane temperature as an index of hemispheric activation. The technique is simple and inexpensive, and is shown to be suitable for the assessment of hemispheric activation patterns during typical experiments. ¶ In conclusion, individual characteristics such as the efficiency of interhemispheric transfer, handedness, functional lateralisation, attention, and hemispheric activation are important factors to consider when researching hemispheric interactions in both normal and clinical populations. Furthermore, future research will benefit from this newly developed measure, fTMT, by allowing the systematic study of the effects of hemispheric activation in brain processes.
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Iglarsh, Judith Naomi. "Interhemispheric transfer deficits in schizophrenia." 1988. http://catalog.hathitrust.org/api/volumes/oclc/18699265.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1988.
Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 32-37).
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Barnett, Kylie. "Laterality and interhemispheric transfer in schizophrenia." 2004. http://hdl.handle.net/2292/365.

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There is a plethora of research describing dysfunction of a single hemisphere (usually the left) in schizophrenia, while there is less evidence to suggest right-hemisphere dysfunction. There is also much evidence to suggest that individuals with schizophrenia have difficulties integrating information between the two cerebral hemispheres or transferring information between the hemispheres. The aim of this thesis was to investigate lateralized and interhemispheric information processing in males with predominantly negative-symptom schizophrenia. This thesis employs behavioural (i.e. computer-based reaction-time tasks), neuropsychological (i.e. the line-bisection task) and electrophysiological (i.e. electroencephalogram) measures to assess laterality and interhemispheric processing in schizophrenia relative to matched controls. In Experiment 1, the Poffenberger (1912) paradigm was used to compare the difference between “crossed” (stimuli and motor response areas are contralateral) and “uncrossed” (stimuli and motor response areas are ipsilateral) conditions to estimate interhemispheric transfer time. Simple reaction time (RT) was recorded to stimuli presented unilaterally or bilaterally in participants who responded using either the left or right hand. While the results provide no evidence for differences between the groups in information transfer or integration between the hemispheres, the schizophrenia group was significantly slower to respond to LVF stimuli, suggesting right-hemisphere dysfunction. In Experiment 2, bilateral gain was assessed using a lexical-decision task where word or non-word judgments were made to letter strings presented in the LVF, RVF, or BVF. The schizophrenia group showed normal lateralization of language to the left hemisphere, but unlike controls who showed a bilateral gain (decrease in RT), they were actually disadvantaged when two stimuli were presented simultaneously to both hemispheres. In Experiment 3, the linebisection task (see Appendix A) was used to estimate right-hemisphere visuospatial processing. The schizophrenia group showed a rightward bias under certain conditions, for example when lines were positioned on the right side of the page, when the right hand was used, and when a right-to-left scan was adopted suggesting a deficit in the transfer of visuospatial information. In Experiment 4, interhemispheric transfer was investigated using 128-channel EEG as a direct measure. Evoked potentials (EPs) were obtained while participants performed the Poffenberger task. The N160 was measured from homologous occipital sites to assess transfer latency in milliseconds. While controls had faster information transfer from the right hemisphere to the left hemisphere, this asymmetry of transfer was absent in the schizophrenia group who had similar transfer speeds in both directions, i.e. ‘symmetry of transfer’. Similarly, in Experiment 5, the schizophrenia group failed to show faster transfer of linguistic information (words and non-words) from the right hemisphere to the left. In both EEG tasks the schizophrenia group showed a concomitant decrease in the amplitude of the N160 that was marked over the right hemisphere. This suggests that right-hemisphere dysfunction, rather than callosal dysfunction may better explain interhemispheric deficits in schizophrenia. Results are discussed with reference to Miller’s (1996) hypothesis regarding differences in cerebral hemispheric specialization and axonal conduction delays. These findings suggest that righthemisphere dysfunction may be associated with negative symptoms in males with schizophrenia.
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Fogle, Kelly L. "Cognitive flexibility, interhemispheric transfer and QEEG in concussed female athletes." 2013. http://liblink.bsu.edu/uhtbin/catkey/1722798.

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Many athletes and spectators believe that experiencing and controlling psychological momentum is a critical component to achieving success in sport (Perreault, Vallerand, Montgomery, & Provencher, 1998; Stanimirovic & Hanrahan, 2004). Despite this, little is known regarding why some individuals perceive momentum differently than others. This study was designed to determine if optimistic thinking has a relationship with psychological momentum perceptions. Female Division I NCAA volleyball players (N = 68) completed the Life Orientation Test – Revised (Scheier, Carver, & Bridges, 1994), the Sport Attributional Style Scale - Short (Hanrahan & Grove, 1990b), and a psychological momentum survey. The results indicated that attributional style constructs intentionality and globality were significant predictors of psychological momentum perceptions. Also, participants had greater disagreement regarding the momentum value of early and late points in a set than those in between. Neither dispositional optimism nor sport-specific optimistic attributional style were correlated with psychological momentum perceptions. Future attempts to measure psychological momentum perceptions should consider a mixed methods approach along with more ecologically valid assessment protocols.
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Bergert, Susanne [Verfasser]. "The interhemispheric transfer of visual stimuli and its relation to functional cerebral asymmetries / by Susanne Bergert." 2008. http://d-nb.info/992049954/34.

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Books on the topic "Interhemispheric transfer"

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Hall, Terry Lynn. Brightness discriminability and degree of interhemispheric transfer of an avoidance response in rats under cortical spreading depression. 1997.

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Book chapters on the topic "Interhemispheric transfer"

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Geffen, Gina M., Judith Nilsson, Donald A. Simpson, and Malcolm A. Jeeves. "The Development of Interhemispheric Transfer of Tactile Information in Cases of Callosal Agenesis." In Callosal Agenesis, 185–97. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4613-0487-6_20.

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"Commentary 12.1 Attentional Modulation of Interhemispheric Transfer." In The Parallel Brain. The MIT Press, 2003. http://dx.doi.org/10.7551/mitpress/5233.003.0034.

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Berardi, Nicoletta, and Adriana Fiorentini. "Interhemispheric Transfer of Spatial and Temporal Frequency Information." In Cerebral Asymmetries in Sensory and Perceptual Processing, 55–79. Elsevier, 1997. http://dx.doi.org/10.1016/s0166-4115(97)80070-2.

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Eacott, Madeline J. "Interhemispheric transfer following partial commissurotomy in humans and monkeys." In Comparative Neuropsychology, 127–42. Oxford University Press, 1998. http://dx.doi.org/10.1093/acprof:oso/9780198524113.003.0008.

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"Commentary 11.1 Interhemispheric Transfer of Visuomotor Inputs in a Split-Brain Patient." In The Parallel Brain. The MIT Press, 2003. http://dx.doi.org/10.7551/mitpress/5233.003.0032.

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"Commentary 8.1 Interhemispheric Transfer of Visual Information as a Function of Retinal Eccentricity." In The Parallel Brain. The MIT Press, 2003. http://dx.doi.org/10.7551/mitpress/5233.003.0021.

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"Commentary 8.3 The Use of Event-Related Potentials for Measuring Interhemispheric Transfer Time." In The Parallel Brain. The MIT Press, 2003. http://dx.doi.org/10.7551/mitpress/5233.003.0023.

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Reports on the topic "Interhemispheric transfer"

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Bergold, Peter. Interhemispheric Information Transfer: A New Diagnostic Method for Mild Traumatic Brain Injury. Fort Belvoir, VA: Defense Technical Information Center, October 2011. http://dx.doi.org/10.21236/ada613511.

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