Laterality Effect for Faces in Chimpanzees (Pan troglodytes)
Laterality Effect for Faces in Chimpanzees (Pan troglodytes)
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DOI：
10.1523/jneurosci.0590-13.2013
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发表时间：
2013-08-14
影响因子：
5.3
通讯作者：
Adachi, Ikuma
中科院分区：
文献类型：
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作者：
Dahl, Christoph D.;Rasch, Malte J.;Adachi, Ikuma
人类的面部感知更多地受到右半球神经相关性的控制，而不是左半球神经相关性。一些但不是全部的神经生理学研究描绘了猕猴大脑中面部反应神经元的右侧优势。因此，灵长类动物大脑中是否以及在多大程度上存在处理面孔的右半球偏好，这是一个悬而未决的问题。我们研究了黑猩猩如何区分黑猩猩和人类的嵌合面孔，即面部的左侧或右侧的组合垂直翻转并合并为整个面部。我们发现，选择左嵌合面部比选择右嵌合面部更频繁，因为这是两者中更接近原始面部的一个，这反映了右脑处理面部的优势，正如在人类中报告的那样。此外，我们发现了参与者年龄的调节，这表明特定类别的暴露历史塑造了与配置/整体处理策略相关的右半球神经。换句话说，黑猩猩参与者的发现与人类参与者的发现相似，并且暗示这两个物种的枕颞皮质中存在相似的神经机制。
Face perception in humans is governed more by right-hemispheric than left-hemispheric neural correlate. Some but not all neurophysiological studies depict a right-side dominance for face responsive neurons in the brains of macaques. Hence, it is an open question whether and to what extent a right-hemisphere preference of processing faces exists across primate brains. We investigated chimpanzees discriminating chimeric faces of chimpanzees and humans, i.e., the combination of either left or right sides of a face vertically flipped and merged into a whole face. We found an effect of choosing the left-chimeric face more often than the right-chimeric face as being the one of the two that is closer to the original face, reflecting an advantage for the right side of the brain to process faces, as reported in humans. Moreover, we found a modulation by age of the participants, suggesting that the exposure history with a particular category shapes the right-hemispheric neural correlate to a configural/holistic processing strategy. In other words, the findings in chimpanzee participants parallel those in human participants and are suggestive for similar neural machineries in the occipital-temporal cortices in both species.