期刊
COGNITIVE BRAIN RESEARCH
卷 25, 期 1, 页码 210-216出版社
ELSEVIER
DOI: 10.1016/j.cogbrainres.2005.05.012
关键词
handedness; laterality; grasping; moto skill; bimanual coordination; monkey
资金
- NICHD NIH HHS [P01 HD038051, P01 HD038051-050005] Funding Source: Medline
- NINDS NIH HHS [R01 NS042867-05, R01 NS042867, R01 NS036605-08, R01 NS036605] Funding Source: Medline
This study examined hand preference in baboons in a sample of 94 subjects for a unimanual task and in a sample of 104 subjects for a bimanual task. For the unimanual task, handedness was assessed by observing simple reaching for grains. For the bimanual task, tubes lined with peanut butter inside were presented to the baboons. The hand and the finger used to remove peanut butter were recorded. Population-level right-handedness was found for the bimanual but not the unimanual task. In addition, test-retest correlations showed consistency in hand use across time for the coordinated bimanual task but not the simple reaching task. No significant effects of age and sex on the direction and strength of hand preferences were found for either task. These are the first evidences of population-level handedness in baboons and the results are discussed in the context of evolutionary theories of cerebral dominance. (c) 2005 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据