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Journal articles on the topic 'Brain lateralization'

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Author: Grafiati

Published: 4 June 2021

Last updated: 31 January 2023

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1

Rogers, Lesley J. "Brain Lateralization and Cognitive Capacity." Animals 11, no. 7 (July 3, 2021): 1996. http://dx.doi.org/10.3390/ani11071996.

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One way to increase cognitive capacity is to avoid duplication of functions on the left and right sides of the brain. There is a convincing body of evidence showing that such asymmetry, or lateralization, occurs in a wide range of both vertebrate and invertebrate species. Each hemisphere of the brain can attend to different types of stimuli or to different aspects of the same stimulus and each hemisphere analyses information using different neural processes. A brain can engage in more than one task at the same time, as in monitoring for predators (right hemisphere) while searching for food (left hemisphere). Increased cognitive capacity is achieved if individuals are lateralized in one direction or the other. The advantages and disadvantages of individual lateralization are discussed. This paper argues that directional, or population-level, lateralization, which occurs when most individuals in a species have the same direction of lateralization, provides no additional increase in cognitive capacity compared to individual lateralization although directional lateralization is advantageous in social interactions. Strength of lateralization is considered, including the disadvantage of being very strongly lateralized. The role of brain commissures is also discussed with consideration of cognitive capacity.

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2

Neveu, P. J. "Brain Lateralization and Immunomodulation." International Journal of Neuroscience 70, no. 1-2 (January 1993): 135–43. http://dx.doi.org/10.3109/00207459309000569.

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3

Ross, Elliott D. "Prosody and Brain Lateralization." Archives of Neurology 45, no. 3 (March 1, 1988): 338. http://dx.doi.org/10.1001/archneur.1988.00520270120030.

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4

Hachinski, V. "Prosody and Brain Lateralization." Archives of Neurology 45, no. 3 (March 1, 1988): 339. http://dx.doi.org/10.1001/archneur.1988.00520270121031.

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5

dräger, bianca, caterina breitenstein, and stefan knecht. "rethinking brain asymmetries in humans." Behavioral and Brain Sciences 28, no. 4 (August 2005): 598–99. http://dx.doi.org/10.1017/s0140525x05320103.

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similar to directional asymmetries in animals, language lateralization in humans follows a bimodal distribution. a majority of individuals are lateralized to the left and a minority of individuals are lateralized to the right side of the brain. however, a biological advantage for either lateralization is lacking. the scenario outlined by vallortigara & rogers (v&r) suggests that language lateralization in humans is not specific to language or human speciation but simply follows an evolutionarily conserved organizational principle of the brain.

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6

Kienast, Patric, Ernst Schwartz, Mariana C. Diogo, Gerlinde M. Gruber, Peter C. Brugger, Herbert Kiss, Barbara Ulm, et al. "The Prenatal Origins of Human Brain Asymmetry: Lessons Learned from a Cohort of Fetuses with Body Lateralization Defects." Cerebral Cortex 31, no. 8 (March 27, 2021): 3713–22. http://dx.doi.org/10.1093/cercor/bhab042.

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Abstract Knowledge about structural brain asymmetries of human fetuses with body lateralization defects—congenital diseases in which visceral organs are partially or completely incorrectly positioned—can improve our understanding of the developmental origins of hemispheric brain asymmetry. This study investigated structural brain asymmetry in 21 fetuses, which were diagnosed with different types of lateralization defects; 5 fetuses with ciliopathies and 26 age-matched healthy control cases, between 22 and 34 gestational weeks of age. For this purpose, a database of 4007 fetal magnetic resonance imagings (MRIs) was accessed and searched for the corresponding diagnoses. Specific temporal lobe brain asymmetry indices were quantified using in vivo, super-resolution-processed MR brain imaging data. Results revealed that the perisylvian fetal structural brain lateralization patterns and asymmetry indices did not differ between cases with lateralization defects, ciliopathies, and normal controls. Molecular mechanisms involved in the definition of the right/left body axis—including cilium-dependent lateralization processes—appear to occur independently from those involved in the early establishment of structural human brain asymmetries. Atypically inverted early structural brain asymmetries are similarly rare in individuals with lateralization defects and may have a complex, multifactorial, and neurodevelopmental background with currently unknown postnatal functional consequences.

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7

Miler, Krzysztof, Karolina Kuszewska, and Michał Woyciechowski. "Larval antlions with more pronounced behavioural asymmetry show enhanced cognitive skills." Biology Letters 13, no. 2 (February 2017): 20160786. http://dx.doi.org/10.1098/rsbl.2016.0786.

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Brain lateralization is hypothesized to improve the efficiency of information processing. Here, we found that some Myrmeleon bore antlion larvae showed individual asymmetry in righting from a supine to normal position over one side of their body, which can be considered a reflection of greater brain lateralization. We demonstrated that these behaviourally asymmetrical individuals showed improved learning abilities, providing novel evidence that brain lateralization leads to beneficial effects on cognitive functions.

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8

Aleckovic-Nikolic, Mila. "Inconscious, brain lateralization and parapsychology." Zbornik radova Filozofskog fakulteta u Pristini 45, no. 3 (2015): 59–72. http://dx.doi.org/10.5937/zrffp45-9891.

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9

Güntürkün, Onur, Felix Ströckens, and Sebastian Ocklenburg. "Brain Lateralization: A Comparative Perspective." Physiological Reviews 100, no. 3 (July 1, 2020): 1019–63. http://dx.doi.org/10.1152/physrev.00006.2019.

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Comparative studies on brain asymmetry date back to the 19th century but then largely disappeared due to the assumption that lateralization is uniquely human. Since the reemergence of this field in the 1970s, we learned that left-right differences of brain and behavior exist throughout the animal kingdom and pay off in terms of sensory, cognitive, and motor efficiency. Ontogenetically, lateralization starts in many species with asymmetrical expression patterns of genes within the Nodal cascade that set up the scene for later complex interactions of genetic, environmental, and epigenetic factors. These take effect during different time points of ontogeny and create asymmetries of neural networks in diverse species. As a result, depending on task demands, left- or right-hemispheric loops of feedforward or feedback projections are then activated and can temporarily dominate a neural process. In addition, asymmetries of commissural transfer can shape lateralized processes in each hemisphere. It is still unclear if interhemispheric interactions depend on an inhibition/excitation dichotomy or instead adjust the contralateral temporal neural structure to delay the other hemisphere or synchronize with it during joint action. As outlined in our review, novel animal models and approaches could be established in the last decades, and they already produced a substantial increase of knowledge. Since there is practically no realm of human perception, cognition, emotion, or action that is not affected by our lateralized neural organization, insights from these comparative studies are crucial to understand the functions and pathologies of our asymmetric brain.

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10

Knecht, S., M. Deppe, B. Dräger, L. Bobe, H. Lohmann, E. B. Ringelstein, and H. Henningsen. "Language lateralization in healthy right-handers." Brain 123, no. 1 (January 2000): 74–81. http://dx.doi.org/10.1093/brain/123.1.74.

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11

Milenkovic, Sanja, Katarina Paunovic, and Dusica Kocijancic. "Laterality in living beings, hand dominance, and cerebral lateralization." Srpski arhiv za celokupno lekarstvo 144, no. 5-6 (2016): 339–44. http://dx.doi.org/10.2298/sarh1606339m.

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To date, lateralization in living beings is a phenomenon almost mythologically unexplored. Scientists have proved that lateralization is not exclusively a human feature. Investigations in molecular biology, protein structure, mobility of bacteria, and intracellular lateralization in ciliates, shows important and universal nature of lateralization in living systems. Dominant lateralization implies the appearance of a dominant extremity, or a dominant sense during the performance of complex psychomotor activities. Hand dominance is usually defined as a tendency to use one hand rather than another to perform most activities and this is considered to be the most obvious example of cerebral lateralization and exclusive characteristic of humans. However, there are some exceptions in other species. The dominant hand is able to perform more complex and subtle manual tasks than the non-dominant hand, and this behavioral superiority is the absolute result of additional cerebral support. The asymmetry of brain organization was confirmed in rats, chimpanzees, dogs and birds, some fishes and lizards. The relationships between hand dominance with brain structure and function remain far from clear. For a long time, lateralization was considered unique to humans, but recently it has become clear that lateralization is a fundamental characteristic of the organization of brain and behavior in all vertebrates. It has been questioned to what extent lateralization in humans and other vertebrates may be comparable.

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12

Zou, Hongliang, and Jian Yang. "Exploring the Brain Lateralization in ADHD Based on Variability of Resting-State fMRI Signal." Journal of Attention Disorders 25, no. 2 (December 6, 2018): 258–64. http://dx.doi.org/10.1177/1087054718816170.

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Objective: In this study, we investigate the brain lateralization in ADHD patients. Furthermore, we also explore the difference between male and female patients, and the difference among distinct ADHD subtypes, that is, ADHD–inattentive (ADHD-IA) and ADHD–combined (ADHD-C). Method: We employed the standard deviation to quantify the variability of resting-state functional magnetic resonance imaging (fMRI) signal and measure the lateralization index (LI). Results: ADHD patients showed significantly increased rightward lateralization in the inferior frontal gyrus (opercular), precuneus, and paracentral lobule, and decreased rightward lateralization in the insula. Compared with male patients, female patients showed significantly rightward lateralization in the putamen and lobule VII of cerebellar hemisphere. ADHD-C patients exhibited increased rightward lateralization in the inferior frontal gyrus (opercular), and decreased rightward lateralization in the inferior temporal gyrus, as compared with ADHD-IA. The LI was also found to be related to inattentive and hyper/impulsive scores. Conclusion: These key findings may aid in understanding the pathology of ADHD.

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13

vallortigara, giorgio, and lesley j. rogers. "forming an asymmetrical brain: genes, environment, and evolutionarily stable strategies." Behavioral and Brain Sciences 28, no. 4 (August 2005): 615–23. http://dx.doi.org/10.1017/s0140525x05480103.

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the present response elaborates and defends the main theses advanced in the target article: namely, that in order to provide an evolutionary account of brain lateralization, we should consider advantages and disadvantages associated both with the individual possession of an asymmetrical brain and with the alignment of the direction of lateralization at the population level. we explain why we believe that the hypothesis that directional lateralization evolved as an evolutionarily stable strategy may provide a better account than alternative hypotheses. we also further our discussion of the influence of stimulation and experience in early life on lateralization, and thereby show that our hypothesis is not deterministic. we also consider some novel data and ideas in support of our main thesis.

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14

Knecht, S. "Does language lateralization depend on the hippocampus?" Brain 127, no. 6 (April 6, 2004): 1217–18. http://dx.doi.org/10.1093/brain/awh202.

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15

Ortigue, S., G. Thut, T. Landis, and C. M. Michel. "Time-resolved sex differences in language lateralization." Brain 128, no. 5 (May 1, 2005): E28. http://dx.doi.org/10.1093/brain/awh386.

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16

Cary, Gene L. "Brain Lateralization in Children: Developmental Implications." American Journal of Psychotherapy 43, no. 3 (July 1989): 449–50. http://dx.doi.org/10.1176/appi.psychotherapy.1989.43.3.449.

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17

HUMPHRIES, LAURIE. "Brain Lateralization in Children: Developmental Implications." Journal of the American Academy of Child & Adolescent Psychiatry 30, no. 6 (November 1991): 1030. http://dx.doi.org/10.1097/00004583-199111000-00036.

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18

Heller, Wendy. "Brain Lateralization in Children: Developmental Implications." Journal of Neuropsychiatry and Clinical Neurosciences 1, no. 2 (May 1989): 216–18. http://dx.doi.org/10.1176/jnp.1.2.216.

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19

Erberich, Stephan G., Ashok Panigrahy, Philippe Friedlich, Istvan Seri, Marvin D. Nelson, and Floyd Gilles. "Somatosensory lateralization in the newborn brain." NeuroImage 29, no. 1 (January 2006): 155–61. http://dx.doi.org/10.1016/j.neuroimage.2005.07.024.

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20

Chepurnov, S. A., N. E. Chepurnova, E. Paschali, N. Yu Panteleev, and I. P. Ashmarin. "Substance P and brain functional lateralization." Regulatory Peptides 37 (September 1992): S45. http://dx.doi.org/10.1016/0167-0115(92)90900-f.

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21

Manning, J. T., and A. T. Chamberlain. "Left-side cradling and brain lateralization." Ethology and Sociobiology 12, no. 3 (May 1991): 237–44. http://dx.doi.org/10.1016/0162-3095(91)90006-c.

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22

Izquierdo, Ivan. "Behavioral drug actions and brain lateralization." Trends in Pharmacological Sciences 10, no. 9 (September 1989): 344–45. http://dx.doi.org/10.1016/0165-6147(89)90003-5.

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23

Bouma, Anke. "Brain lateralization in children. Developmental implications." Acta Psychologica 79, no. 3 (May 1992): 278–83. http://dx.doi.org/10.1016/0001-6918(92)90063-j.

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24

Miletto Petrazzini, Maria Elena, Alessandra Pecunioso, Marco Dadda, and Christian Agrillo. "The Impact of Brain Lateralization and Anxiety-Like Behaviour in an Extensive Operant Conditioning Task in Zebrafish (Danio rerio)." Symmetry 11, no. 11 (November 12, 2019): 1395. http://dx.doi.org/10.3390/sym11111395.

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Several studies in mammals, birds, and fish have documented better cognitive abilities associated with an asymmetrical distribution of cognitive functions in the two halves of the brain, also known as ‘functional brain lateralization’. However, the role of brain lateralization in learning abilities is still unclear. In addition, although recent studies suggest a link between some personality traits and accuracy in cognitive tasks, the relation between anxiety and learning skills in Skinner boxes needs to be clarified. In the present study, we tested the impact of brain lateralization and anxiety-like behaviour in the performance of an extensive operant conditioning task. Zebrafish tested in a Skinner box underwent 500 trials in a colour discrimination task (red vs. yellow and green vs. blue). To assess the degree of lateralization, fish were observed in a detour test in the presence of a dummy predator, and anxiety-like behaviour was studied by observing scototaxis response in an experimental tank divided into light and dark compartments. Although the low performance in the colour discrimination task did not permit the drawing of firm conclusions, no correlation was found between the accuracy in the colour discrimination task and the behaviour in the detour and scototaxis tests. This suggests that neither different degrees of asymmetries in brain lateralization nor anxiety may significantly impact the learning skills of zebrafish.

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25

Frasnelli, Elisa, and Giorgio Vallortigara. "Individual-Level and Population-Level Lateralization: Two Sides of the Same Coin." Symmetry 10, no. 12 (December 11, 2018): 739. http://dx.doi.org/10.3390/sym10120739.

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Lateralization, i.e., the different functional roles played by the left and right sides of the brain, is expressed in two main ways: (1) in single individuals, regardless of a common direction (bias) in the population (aka individual-level lateralization); or (2) in single individuals and in the same direction in most of them, so that the population is biased (aka population-level lateralization). Indeed, lateralization often occurs at the population-level, with 60–90% of individuals showing the same direction (right or left) of bias, depending on species and tasks. It is usually maintained that lateralization can increase the brain’s efficiency. However, this may explain individual-level lateralization, but not population-level lateralization, for individual brain efficiency is unrelated to the direction of the asymmetry in other individuals. From a theoretical point of view, a possible explanation for population-level lateralization is that it may reflect an evolutionarily stable strategy (ESS) that can develop when individually asymmetrical organisms are under specific selective pressures to coordinate their behavior with that of other asymmetrical organisms. This prediction has been sometimes misunderstood as it is equated with the idea that population-level lateralization should only be present in social species. However, population-level asymmetries have been observed in aggressive and mating displays in so-called “solitary” insects, suggesting that engagement in specific inter-individual interactions rather than “sociality” per se may promote population-level lateralization. Here, we clarify that the nature of inter-individuals interaction can generate evolutionarily stable strategies of lateralization at the individual- or population-level, depending on ecological contexts, showing that individual-level and population-level lateralization should be considered as two aspects of the same continuum.

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26

martin, maryanne, and gregory v. jones. "constraints from handedness on the evolution of brain lateralization." Behavioral and Brain Sciences 28, no. 4 (August 2005): 603–4. http://dx.doi.org/10.1017/s0140525x05370105.

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can we understand brain lateralization in humans by analysis in terms of an evolutionarily stable strategy? the attempt to demonstrate a link between lateralization in humans and that in, for example, fish appears to hinge critically on whether the isomorphism is viewed as a matter of homology or homoplasy. consideration of human handedness presents a number of challenges to the proposed framework.

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27

Rogers and Kaplan. "Does Functional Lateralization in Birds Have any Implications for Their Welfare?" Symmetry 11, no. 8 (August 13, 2019): 1043. http://dx.doi.org/10.3390/sym11081043.

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We know a good deal about brain lateralization in birds and a good deal about animal welfare, but relatively little about whether there is a noteworthy relationship between avian welfare and brain lateralization. In birds, the left hemisphere is specialised to categorise stimuli and to discriminate preferred categories from distracting stimuli (e.g., food from an array of inedible objects), whereas the right hemisphere responds to small differences between stimuli, controls social behaviour, detects predators and controls attack, fear and escape responses. In this paper, we concentrate on visual lateralization and the effect of light exposure of the avian embryo on the development of lateralization, and we consider its role in the welfare of birds after hatching. Findings suggest that light-exposure during incubation has a general positive effect on post-hatching behaviour, likely because it facilitates control of behaviour by the left hemisphere, which can suppress fear and other distress behaviour controlled by the right hemisphere. In this context, particular attention needs to be paid to the influence of corticosterone, a stress hormone, on lateralization. Welfare of animals in captivity, as is well known, has two cornerstones: enrichment and reduction of stress. What is less well-known is the link between the influence of experience on brain lateralization and its consequent positive or negative outcomes on behaviour. We conclude that the welfare of birds may be diminished by failure to expose the developing embryos to light but we also recognise that more research on the association between lateralization and welfare is needed.

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28

Oppenheimer, S. "Forebrain lateralization and the cardiovascular correlates of epilepsy." Brain 124, no. 12 (December 1, 2001): 2345–46. http://dx.doi.org/10.1093/brain/124.12.2345.

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29

Wang, Shuai, Lise Van der Haegen, Lily Tao, and Qing Cai. "Brain Functional Organization Associated With Language Lateralization." Cerebral Cortex 29, no. 10 (December 15, 2018): 4312–20. http://dx.doi.org/10.1093/cercor/bhy313.

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Abstract Although it is well-established that human language functions are mostly lateralized to the left hemisphere of the brain, little is known about the functional mechanisms underlying such hemispheric dominance. The present study investigated intrinsic organization of the whole brain at rest, by means of functional connectivity and graph theoretical analysis, with the aim to characterize brain functional organization underlying typical and atypical language dominance. We included healthy left-handers, both those with typical left-lateralized language and those with atypical right-lateralized language. Results show that 1) differences between typical and atypical language lateralization are associated with functional connectivity within the language system, particularly with weakened connectivity between left inferior frontal gyrus and several other language-related areas; and 2) for participants with atypical language dominance, the degree of lateralization is linked with multiple functional connectivities and graph theoretical metrics of whole brain organization, including local efficiency and small-worldness. This is the first study, to our knowledge, that linked the degree of language lateralization to global topology of brain networks. These results reveal that typical and atypical language dominance mainly differ in functional connectivity within the language system, and that atypical language dominance is associated with whole-brain organization.

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Domenici, Paolo, Bridie Allan, Mark I. McCormick, and Philip L. Munday. "Elevated carbon dioxide affects behavioural lateralization in a coral reef fish." Biology Letters 8, no. 1 (August 17, 2011): 78–81. http://dx.doi.org/10.1098/rsbl.2011.0591.

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Elevated carbon dioxide (CO 2 ) has recently been shown to affect chemosensory and auditory behaviour, and activity levels of larval reef fishes, increasing their risk of predation. However, the mechanisms underlying these changes are unknown. Behavioural lateralization is an expression of brain functional asymmetries, and thus provides a unique test of the hypothesis that elevated CO 2 affects brain function in larval fishes. We tested the effect of near-future CO 2 concentrations (880 µatm) on behavioural lateralization in the reef fish, Neopomacentrus azysron . Individuals exposed to current-day or elevated CO 2 were observed in a detour test where they made repeated decisions about turning left or right. No preference for right or left turns was observed at the population level. However, individual control fish turned either left or right with greater frequency than expected by chance. Exposure to elevated-CO 2 disrupted individual lateralization, with values that were not different from a random expectation. These results provide compelling evidence that elevated CO 2 directly affects brain function in larval fishes. Given that lateralization enhances performance in a number of cognitive tasks and anti-predator behaviours, it is possible that a loss of lateralization could increase the vulnerability of larval fishes to predation in a future high-CO 2 ocean.

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31

Manns, Martina. "It Is Not Just in the Genes." Symmetry 13, no. 10 (September 29, 2021): 1815. http://dx.doi.org/10.3390/sym13101815.

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Asymmetries in the functional and structural organization of the nervous system are widespread in the animal kingdom and especially characterize the human brain. Although there is little doubt that asymmetries arise through genetic and nongenetic factors, an overarching model to explain the development of functional lateralization patterns is still lacking. Current genetic psychology collects data on genes relevant to brain lateralizations, while animal research provides information on the cellular mechanisms mediating the effects of not only genetic but also environmental factors. This review combines data from human and animal research (especially on birds) and outlines a multi-level model for asymmetry formation. The relative impact of genetic and nongenetic factors varies between different developmental phases and neuronal structures. The basic lateralized organization of a brain is already established through genetically controlled embryonic events. During ongoing development, hemispheric specialization increases for specific functions and subsystems interact to shape the final functional organization of a brain. In particular, these developmental steps are influenced by environmental experiences, which regulate the fine-tuning of neural networks via processes that are referred to as ontogenetic plasticity. The plastic potential of the nervous system could be decisive for the evolutionary success of lateralized brains.

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32

Leisman, Gerry, Robert Melillo, Ty Melillo, Calixto Machado, Yanin Machado-Ferrer, Mauricio Chinchilla, and Eli Carmeli. "Taking Sides: Asymmetries in the Evolution of Human Brain Development in Better Understanding Autism Spectrum Disorder." Symmetry 14, no. 12 (December 19, 2022): 2689. http://dx.doi.org/10.3390/sym14122689.

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Confirmation from structural, functional, and behavioral studies agree and suggest a configuration of atypical lateralization in individuals with autistic spectrum disorders (ASD). It is suggested that patterns of cortical and behavioral atypicality are evident in individuals with ASDs with atypical lateralization being common in individuals with ASDs. The paper endeavors to better understand the relationship between alterations in typical cortical asymmetries and functional lateralization in ASD in evolutionary terms. We have proposed that both early genetic and/or environmental influences can alter the developmental process of cortical lateralization. There invariably is a “chicken or egg” issue that arises whether atypical cortical anatomy associated with abnormal function, or alternatively whether functional atypicality generates abnormal structure.

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33

Cavelius, Matthias, Théo Brunel, and Anne Didier. "Lessons from behavioral lateralization in olfaction." Brain Structure and Function 227, no. 2 (October 1, 2021): 685–96. http://dx.doi.org/10.1007/s00429-021-02390-w.

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AbstractSensory information, sampled by sensory organs positioned on each side of the body may play a crucial role in organizing brain lateralization. This question is of particular interest with regard to the growing evidence of alteration in lateralization in several psychiatric conditions. In this context, the olfactory system, an ancient, mostly ipsilateral and well-conserved system across phylogeny may prove an interesting model system to understand the behavioral significance of brain lateralization. Here, we focused on behavioral data in vertebrates and non-vertebrates, suggesting that the two hemispheres of the brain differentially processed olfactory cues to achieve diverse sensory operations, such as detection, discrimination, identification of behavioral valuable cues or learning. These include reports across different species on best performances with one nostril or the other or odorant active sampling by one nostril or the other, depending on odorants or contexts. In some species, hints from peripheral anatomical or functional asymmetry were proposed to explain these asymmetries in behavior. Instigations of brain activation or more rarely of brain connectivity evoked by odorants revealed a complex picture with regards to asymmetric patterns which is discussed with respect to behavioral data. Along the steps of the discussed literature, we propose avenues for future research.

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Roza, Carolina, and Anabel Martinez-Padilla. "Asymmetric Lateralization during Pain Processing." Symmetry 13, no. 12 (December 14, 2021): 2416. http://dx.doi.org/10.3390/sym13122416.

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Pain is defined as “an unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage”. This complex perception arises from the coordinated activity of several brain areas processing either sensory–discriminative or affective–motivational components. Functional studies performed in healthy volunteers revealed that affective–emotional components of pain are processed bilaterally but present a clear lateralization towards the right hemisphere, regardless of the site of stimulation. Studies at the cellular level performed in experimental animal models of pain have shown that neuronal activity in the right amygdala is clearly pronociceptive, whilst activation of neurons in the left amygdala might even exert antinociceptive effects. A shift in lateralization becomes evident during the development of chronic pain; thus, in patients with neuropathic pain symptoms, there is increased activity in ipsilateral brain areas related with pain. These observations extend the asymmetrical left–right lateralization within the nervous system and provide a new hypothesis for the pathophysiology of chronic forms of pain. In this article, we will review experimental data from preclinical and human studies on functional lateralization in the brain during pain processing, which will help to explain the affective disorders associated with persistent, chronic pain.

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35

Dadda, Marco, Veronica Vendramin, and Christian Agrillo. "Prenatal Visual Exposure to a Predator Influences Lateralization in Goldbelly Topminnows." Symmetry 12, no. 8 (July 30, 2020): 1257. http://dx.doi.org/10.3390/sym12081257.

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The role of genetic and environmental factors in modulating the development of brain lateralization is far from being fully understood, and the presence of individual differences in several lateralized functions is still an open question. In goldbelly topminnows, the genetic basis of asymmetrical functions in the brain has been studied, and recently it has been found that light stimulation influences the expression of lateralization of newborns. Here, we investigated whether prenatal exposure to predators affects the development of lateralization in 10-day-old topminnows born from females exposed to a real or to a simulated predator during pregnancy. Offspring from females exposed to a real predator were lateralized in both visual and motor tests, whereas fish from females exposed to a simulated predator were not and did not differ from controls. Prenatal exposure to a real predator might promote the alignment of lateralization in the same direction in different individuals.

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36

Wu, Ting, Duo Chen, Qiqi Chen, Rui Zhang, Wenyu Zhang, Yuejun Li, Ling Zhang, et al. "Automatic Lateralization of Temporal Lobe Epilepsy Based on MEG Network Features Using Support Vector Machines." Complexity 2018 (2018): 1–10. http://dx.doi.org/10.1155/2018/4325096.

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Correct lateralization of temporal lobe epilepsy (TLE) is critical for improving surgical outcomes. As a relatively new noninvasive clinical recording system, magnetoencephalography (MEG) has rarely been applied for determining lateralization of unilateral TLE. Here we propose a framework for using resting-state brain-network features and support vector machine (SVM) for TLE lateralization based on MEG. We recruited 15 patients with left TLE, 15 patients with right TLE, and 15 age- and sex-matched healthy controls. The lateralization problem was then transferred into a series of binary classification problems, including left TLE versus healthy control, right TLE versus healthy control, and left TLE versus right TLE. Brain-network features were extracted for each participant using three network metrics (nodal degree, betweenness centrality, and nodal efficiency). A radial basis function kernel SVM (RBF-SVM) was employed as the classifier. The leave-one-subject-out cross-validation strategy was used to test the ability of this approach to overcome individual differences. The results revealed that the nodal degree performed best for left TLE versus healthy control and right TLE versus healthy control, with accuracy of 80.76% and 75.00%, respectively. Betweenness centrality performed best for left TLE versus right TLE with an accuracy of 88.10%. The proposed approach demonstrated that MEG is a good candidate for solving the lateralization problem in unilateral TLE using various brain-network features.

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37

Vallortigara, G., L. J. Rogers, and A. Bisazza. "Possible evolutionary origins of cognitive brain lateralization." Brain Research Reviews 30, no. 2 (August 1999): 164–75. http://dx.doi.org/10.1016/s0165-0173(99)00012-0.

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Hugdahl, Kenneth. "Lateralization of cognitive processes in the brain." Acta Psychologica 105, no. 2-3 (December 2000): 211–35. http://dx.doi.org/10.1016/s0001-6918(00)00062-7.

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39

Beking, T., R. H. Geuze, M. van Faassen, I. P. Kema, B. P. C. Kreukels, and T. G. G. Groothuis. "Prenatal and pubertal testosterone affect brain lateralization." Psychoneuroendocrinology 88 (February 2018): 78–91. http://dx.doi.org/10.1016/j.psyneuen.2017.10.027.

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40

Okamoto, Hitoshi. "Neurobiology: Sensory Lateralization in the Fish Brain." Current Biology 24, no. 7 (March 2014): R285—R287. http://dx.doi.org/10.1016/j.cub.2014.02.022.

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41

Schulter, G., and I. Papousek. "Individual differences in brain lateralization and personality." International Journal of Psychophysiology 25, no. 1 (January 1997): 25. http://dx.doi.org/10.1016/s0167-8760(97)85399-8.

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CORBALLIS, M. C. "Brain Asymmetries: Cerebral Lateralization in Nonhuman Species." Science 231, no. 4741 (February 28, 1986): 1022–23. http://dx.doi.org/10.1126/science.231.4741.1022-a.

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Abecasis, Donna, Renaud Brochard, David Del Río, André Dufour, and Tomás Ortiz. "Brain Lateralization of Metrical Accenting in Musicians." Annals of the New York Academy of Sciences 1169, no. 1 (July 2009): 74–78. http://dx.doi.org/10.1111/j.1749-6632.2009.04766.x.

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Sommer, I., A. Aleman, and R. S. Kahn. "Reply to ‘Time-resolved sex differences in language lateralization’." Brain 128, no. 5 (May 1, 2005): E29. http://dx.doi.org/10.1093/brain/awh459.

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Kitazawa, Shigeru, and Kenji Kansaku. "Sex difference in language lateralization may be task-dependent." Brain 128, no. 5 (May 1, 2005): E30. http://dx.doi.org/10.1093/brain/awh460.

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Gallea, Cécile, Traian Popa, Cécile Hubsch, Romain Valabregue, Vanessa Brochard, Prantik Kundu, Benoît Schmitt, et al. "RAD51 deficiency disrupts the corticospinal lateralization of motor control." Brain 136, no. 11 (September 20, 2013): 3333–46. http://dx.doi.org/10.1093/brain/awt258.

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Knecht, S. "Behavioural relevance of atypical language lateralization in healthy subjects." Brain 124, no. 8 (August 1, 2001): 1657–65. http://dx.doi.org/10.1093/brain/124.8.1657.

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Coghill, Robert C., Ian Gilron, and Michael J. Iadarola. "Hemispheric Lateralization of Somatosensory Processing." Journal of Neurophysiology 85, no. 6 (June 1, 2001): 2602–12. http://dx.doi.org/10.1152/jn.2001.85.6.2602.

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Processing of both painful and nonpainful somatosensory information is generally thought to be subserved by brain regions predominantly contralateral to the stimulated body region. However, lesions to right, but not left, posterior parietal cortex have been reported to produce a unilateral tactile neglect syndrome, suggesting that components of somatosensory information are preferentially processed in the right half of the brain. To better characterize right hemispheric lateralization of somatosensory processing, H2 15O positron emission tomography (PET) of cerebral blood flow was used to map brain activation produced by contact thermal stimulation of both the left and right arms of right-handed subjects. To allow direct assessment of the lateralization of activation, left- and right-sided stimuli were delivered during separate PET scans. Both innocuous (35°C) and painful (49°C) stimuli were employed to determine whether lateralized processing occurred in a manner related to perceived pain intensity. Subjects were also scanned during a nonstimulated rest condition to characterize activation that was not related to perceived pain intensity. Pain intensity-dependent and -independent changes in activation were identified in separate multiple regression analyses. Regardless of the side of stimulation, pain intensity–dependent activation was localized to contralateral regions of the primary somatosensory cortex, secondary somatosensory cortex, insular cortex, and bilateral regions of the cerebellum, putamen, thalamus, anterior cingulate cortex, and frontal operculum. No hemispheric lateralization of pain intensity–dependent processing was detected. In sharp contrast, portions of the thalamus, inferior parietal cortex (BA 40), dorsolateral prefrontal cortex (BA 9/46), and dorsal frontal cortex (BA 6) exhibited right lateralized activation during both innocuous and painful stimulation, regardless of the side of stimulation. Thus components of information arising from the body surface are processed, in part, by right lateralized systems analogous to those that process auditory and visual spatial information arising from extrapersonal space. Such right lateralized processing can account for the left somatosensory neglect arising from injury to brain regions within the right cerebral hemisphere.

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Reddon, Adam R., and Peter L. Hurd. "Aggression, sex and individual differences in cerebral lateralization in a cichlid fish." Biology Letters 4, no. 4 (June 3, 2008): 338–40. http://dx.doi.org/10.1098/rsbl.2008.0206.

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Cerebral lateralization is an evolutionarily ancient adaptation, apparently ubiquitous among vertebrates. Despite demonstrated advantages of having a more lateralized brain, substantial variability in the strength of lateralization exists within most species. The underlying reasons for the maintenance of this variation are largely unknown. Here, we present evidence that the strength of lateralization is linked to a behavioural trait, aggressiveness, in the convict cichlid ( Archocentrus nigrofasciatus ), and that this relationship depends on the sex of the fish. This finding suggests that individual variation in behaviour may be linked to variation in cerebral lateralization, and must be studied with regard to the sex of the animal.

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Boulinguez-Ambroise, Grégoire, Juliette Aychet, and Emmanuelle Pouydebat. "Limb Preference in Animals: New Insights into the Evolution of Manual Laterality in Hominids." Symmetry 14, no. 1 (January 7, 2022): 96. http://dx.doi.org/10.3390/sym14010096.

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Until the 1990s, the notion of brain lateralization—the division of labor between the two hemispheres—and its more visible behavioral manifestation, handedness, remained fiercely defined as a human specific trait. Since then, many studies have evidenced lateralized functions in a wide range of species, including both vertebrates and invertebrates. In this review, we highlight the great contribution of comparative research to the understanding of human handedness’ evolutionary and developmental pathways, by distinguishing animal forelimb asymmetries for functionally different actions—i.e., potentially depending on different hemispheric specializations. Firstly, lateralization for the manipulation of inanimate objects has been associated with genetic and ontogenetic factors, with specific brain regions’ activity, and with morphological limb specializations. These could have emerged under selective pressures notably related to the animal locomotion and social styles. Secondly, lateralization for actions directed to living targets (to self or conspecifics) seems to be in relationship with the brain lateralization for emotion processing. Thirdly, findings on primates’ hand preferences for communicative gestures accounts for a link between gestural laterality and a left-hemispheric specialization for intentional communication and language. Throughout this review, we highlight the value of functional neuroimaging and developmental approaches to shed light on the mechanisms underlying human handedness.

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