Comparative assessment of handedness for a coordinated bimanual task in chimpanzees (Pan troglodytes), gorillas (Gorilla gorilla), and orangutans (Pongo pygmaeus)
Comparative assessment of handedness for a coordinated bimanual task in chimpanzees (Pan troglodytes), gorillas (Gorilla gorilla), and orangutans (Pongo pygmaeus)
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DOI：
10.1037/0735-7036.117.3.302
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发表时间：
2003-09-01
影响因子：
1.4
通讯作者：
Wesley, MJ
中科院分区：
文献类型：
--
作者：
Hopkins, WD;Stoinski, TS;Wesley, MJ
手的喜好协调双手任务进行了评估，在31个圈养大猩猩（大猩猩大猩猩）和19个圈养猩猩（Pongo pygmaeus）的样本，并与黑猩猩（Pan troglodytes）的手的喜好相匹配的基础上，年龄，性别和饲养历史的科目进行了比较。这项任务要求猿类从放在它们家笼子里的对称聚氯乙烯管的内侧边缘取出食物。研究结果表明，黑猩猩和红毛猩猩存在显著的物种差异，黑猩猩在种群水平上表现为惯用右手，而红毛猩猩在种群水平上表现为惯用左手。大猩猩表现出了一种不明显的右撇子倾向。结果进行了讨论，在可能的生态或生物力学因素，可能会影响手的喜好，在不同的猿类物种。
Hand preferences for a coordinated bimanual task were assessed in a sample of 31 captive gorillas (Gorilla gorilla) and 19 captive orangutans (Pongo pygmaeus) and were compared with chimpanzee (Pan troglodytes) hand preferences in subjects that were matched on the basis of age, sex, and rearing history. The task required that the apes remove food from the inside edges of a symmetrical polyvinyl chloride pipe presented to them in their home cages. The results indicate significant species differences with chimpanzees showing population-level right-handedness and orangutans showing population-level left-handedness. The gorillas showed a nonsignificant trend toward right-handedness. The results are discussed in terms of possible ecological or biomechanical factors that may influence hand preferences in different ape species.