The face inversion effect in non-human primates revisited-an investigation in chimpanzees (Pan troglodytes)

Christoph D. Dahl, Malte J. Rasch, Masaki Tomonaga, Ikuma Adachi

研究成果: 雜誌貢獻文章同行評審

27 引文 斯高帕斯(Scopus)

摘要

Faces presented upside-down are harder to recognize than presented right-side up, an effect known as the face inversion effect. With inversion the perceptual processing of the spatial relationship among facial parts is disrupted. Previous literature indicates a face inversion effect in chimpanzees toward familiar and conspecific faces. Although these results are not inconsistent with findings from humans they have some controversy in their methodology. Here, we employed a delayed matching-to-sample task to test captive chimpanzees on discriminating chimpanzee and human faces. Their performances were deteriorated by inversion. More importantly, the discrimination deterioration was systematically different between the two age groups of chimpanzee participants, i.e. young chimpanzees showed a stronger inversion effect for chimpanzee than for human faces, while old chimpanzees showed a stronger inversion effect for human than for chimpanzee faces. We conclude that the face inversion effect in chimpanzees is modulated by the level of expertise of face processing.

原文英語
文章編號2504
期刊Scientific Reports
3
DOIs
出版狀態已發佈 - 九月 5 2013
對外發佈

ASJC Scopus subject areas

  • 多學科

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