Can the corpus callosum predict gender, age, handedness, or cognitive differences?

Abstract There is increasing interest in finding anatomical correlates in the brain for presumed gender-related differences in cognitive functioning. Recent attention has been drawn to reported sex differences in the human corpus callosum as reflecting sex differences in hemispheric lateralization of visuospatial functions. The question is whether or not existing knowledge of the corpus callosum permits interpretations that relate differing cognitive functions to variations in size and shape of the callosum. The striking variations in callosal size and shape among individuals regardless of gender, when viewed in the context of a growing body of experimental findings, suggest that postnatal maturational processes of the corpus callosum are significantly affected by experience.

[1]  J. Mcglone,et al.  Sex differences in human brain asymmetry: a critical survey , 1980, Behavioral and Brain Sciences.

[2]  S P Wise,et al.  Commissural columns in the sensory‐motor cortex of monkeys , 1979, The Journal of comparative neurology.

[3]  S. F. Witelson.  The brain connection: the corpus callosum is larger in left-handers. , 1985, Science.

[4]  Giorgio M. Innocenti,et al.  Exuberant projection into the corpus callosum from the visual cortex of newborn cats , 1977, Neuroscience Letters.

[5]  R. Holloway,,et al.  Sexual dimorphism in the human corpus callosum. , 1982, Science.

[6]  D. Frost,et al.  Effects of visual experience on the maturation of the efferent system to the corpus callosum , 1979, Nature.

[7]  John F. Brugge,et al.  Postnatal development of auditory callosal connections in the kitten , 1983 .

[8]  T. Imig,et al.  Sources and terminations of callosal axons related to binaural and frequency maps in primary auditory cortex of the cat , 1978, The Journal of comparative neurology.

[9]  H. Killackey,et al.  The ontogeny of the distribution of callosal projection neurons in the rat parietal cortex , 1981, The Journal of comparative neurology.

[10]  F. Gilles,et al.  Gyral development of the human brain , 1977, Transactions of the American Neurological Association.

[11]  G. H. Henry,et al.  Squint-induced modification of callosal connections in cats , 1978, Brain Research.

[12]  J. Hyde.  How large are cognitive gender differences? A meta-analysis using !w² and d.. , 1981 .

[13]  G. Kolata.  Math genius may have hormonal basis. , 1983, Science.

[14]  G M Innocenti,et al.  Maturation of visual callosal connections in visually deprived kittens: a challenging critical period , 1985, The Journal of neuroscience : the official journal of the Society for Neuroscience.

[15]  P. Caplan,et al.  Do sex-related differences in spatial abilities exist? A multilevel critique with new data. , 1985, The American psychologist.

[16]  J. Kaas,et al.  The relation of corpus callosum connections to architectonic fields and body surface maps in sensorimotor cortex of new and old world monkeys , 1983, The Journal of comparative neurology.

[17]  Physiological organization of callosal connections of a visual lateral suprasylvian cortical area in the cat. , 1983, Journal of neurophysiology.

[18]  P. Goldman-Rakic,et al.  Interdigitation of contralateral and ipsilateral columnar projections to frontal association cortex in primates. , 1982, Science.

[19]  H. Fairweather.  Sex differences in cognition , 1976, Cognition.

[20]  R. Mattson,et al.  More intense focal seizure types after callosal section: The role of inhibition , 1984, Annals of neurology.