Individuation and holistic processing of faces in rhesus monkeys

Christoph D. Dahl, Nikos K. Logothetis, Kari L. Hoffman

研究成果: 雜誌貢獻文章同行評審

64 引文 斯高帕斯(Scopus)

摘要

Despite considerable evidence that neural activity in monkeys reflects various aspects of face perception, relatively little is known about monkeys' face processing abilities. Two characteristics of face processing observed in humans are a subordinate-level entry point, here, the default recognition of faces at the subordinate, rather than basic, level of categorization, and holistic effects, i.e. perception of facial displays as an integrated whole. The present study used an adaptation paradigm to test whether untrained rhesus macaques (Macaca mulatta) display these hallmarks of face processing. In experiments 1 and 2, macaques showed greater rebound from adaptation to conspecific faces than to other animals at the individual or subordinate level. In experiment 3, exchanging only the bottom half of a monkey face produced greater rebound in aligned than in misaligned composites, indicating that for normal, aligned faces, the new bottom half may have influenced the perception of the whole face. Scan path analysis supported this assertion: during rebound, fixation to the unchanged eye region was renewed, but only for aligned stimuli. These experiments show that macaques naturally display the distinguishing characteristics of face processing seen in humans and provide the first clear demonstration that holistic information guides scan paths for conspecific faces.

原文英語
頁(從 - 到)2069-2076
頁數8
期刊Proceedings of the Royal Society B: Biological Sciences
274
發行號1622
DOIs
出版狀態已發佈 - 九月 7 2007
對外發佈

ASJC Scopus subject areas

  • 生物化學、遺傳與分子生物學 (全部)
  • 免疫學與微生物學 (全部)
  • 環境科學 (全部)
  • 農業與生物科學 (全部)

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