Cerebral petalias and their relationship to handedness in capuchin monkeys (Cebus apella)

被引：25
|
作者：
Phillips, Kimberley A. [1 ]
Sherwood, Chet C.
机构：
[1] Hiram Coll, Dept Psychol, Hiram, OH 44234 USA
[2] Hiram Coll, Dept Biol, Hiram, OH 44234 USA
[3] George Washington Univ, Dept Anthropol, Washington, DC 20052 USA
来源：
NEUROPSYCHOLOGIA | 2007年 / 45卷 / 10期
关键词：
handedness; lateralized behavior; petalias; Cebus;
D O I：
10.1016/j.neuropsychologia.2007.02.021
中图分类号：
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号：
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要：
Cerebral asymmetries are thought to be associated with increased hemispheric specialization of function. We investigated cerebral petalias, the protrusion of one cerebral hemisphere relative to the other, and their relationship to lateralized behavior in capuchin monkeys (Cebus apella). Magnetic resonance images of the brain and behavioral data on a coordinated bimanual task were obtained from 13 capuchins. While a significant population-level left-frontal petalia was found, this was riot related to handedness. The role of the morphologically asymmetric frontal cortex in capuchins is unclear, but may reflect developmental gradients or directional selection for various behavioral functions, such as extractive foraging or social group complexity. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2398 / 2401
页数：4
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