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Anatomical brain asymmetry in monkeys: Frontal, temporoparietal, and limbic cortex in Macaca
Author(s) -
Heilbroner Peter L.,
Holloway Ralph L.
Publication year - 1989
Publication title -
american journal of physical anthropology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.146
H-Index - 119
eISSN - 1096-8644
pISSN - 0002-9483
DOI - 10.1002/ajpa.1330800208
Subject(s) - superior temporal sulcus , sulcus , anatomy , posterior parietal cortex , brain asymmetry , neuroscience , limbic lobe , psychology , parietal lobe , frontal lobe , temporal lobe , cortex (anatomy) , cingulate cortex , cerebral cortex , lateralization of brain function , gyrus , cerebral hemisphere , biology , central nervous system , perception , epilepsy
Measurements evaluating possible cerebral hemispheric asymmetries were taken by hand on frontal, parietal, and temporal cortex on 60 formalin‐fixed Macaca mulatta and Macaca fascicularis brain specimens. No statistically significant ( P < 0.05) right/left side differences in the mean length of four sulci in visual‐processing areas of the cortex were found. The sulcus adjacent to the region cytoarchitecturally homologous to the motor speech area in the human brain did not show pronounced asymmetry. In both species, however, a small parietal lobe sulcus showed greater development on the left hemisphere than in the right. In measurements made using digital planimetry, right/left side differences in the area of the dorsal cingulate gyrus were not found. Behavioral evidence suggests that monkeys do not exhibit a consistent pattern of cerebral dominance for functions associated with most of these regions of the brain.