Part two of this three-part series commences with anomalous dominance and special talents. Part one appears in a previous issue of the Archives.1
ANOMALOUS DOMINANCE AND SPECIAL TALENTS
According to our hypothesis, slowed growth within certain zones of the left hemisphere is likely to result in enlargement of other cortical regions, in particular, the homologous contralateral area, but also adjacent unfaffected regions. The influences that favor anomalous dominance may thus favor talents associated with superior development of certain regions either in the right hemisphere or in adjacent parts of the left hemisphere. Even with excessive retardation of growth and the resultant migration abnormalities and learning disorders (LD), high talents may exist as a result of compensatory enlargement of other cortical regions.Several types of data are in concordance with these conclusions. Several studies have claimed that the average level of spatial talents is higher in male subiects.2 Hier
Geschwind N, Galaburda AM. Cerebral Lateralization: Biological Mechanisms, Associations, and Pathology: II. A Hypothesis and a Program for Research. Arch Neurol. 1985;42(6):521–552. doi:10.1001/archneur.1985.04060060019009
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