Sawaguchi T
Department of Neurophysiology, Kyoto University, Inuyama, Japan.
Folia Primatol (Basel). 1992;58(3):130-45.
In an attempt to reveal factors associated with neocortical development in monkeys and apes (anthropoids), relationships between the relative size of the neocortex and differences in ecology and social structure were examined for 24 genera of 11 subfamilies. Relative sizes of the neocortex (RSNs) in a given group were assessed as the difference between actual neocortical volume and the volume expected from an allometric relationship between neocortical volume and the volume of the rest of the brain. We found that RSNs are related to diet and social structure: frugivorous anthropoids had higher values of RSNs than folivorous anthropoids, and polygynous anthropoids had significantly higher values of RSNs than monogynous anthropoids. Furthermore, RSNs were positively correlated with the size of the troop. These results suggest that development of the neocortex is associated with both diet and social structure in anthropoids.
为了揭示与猴子和猿类（类人猿）新皮层发育相关的因素，我们研究了11个亚科24个属的新皮层相对大小与生态和社会结构差异之间的关系。给定群体中新皮层的相对大小（RSNs）通过实际新皮层体积与根据新皮层体积与大脑其他部分体积之间的异速生长关系预期的体积之差来评估。我们发现RSNs与饮食和社会结构有关：食果类人猿的RSNs值高于食叶类人猿，多配偶制类人猿的RSNs值显著高于单配偶制类人猿。此外，RSNs与群体大小呈正相关。这些结果表明，类人猿新皮层的发育与饮食和社会结构都有关。
