Multiple perceptual strategies used by macaque monkeys for face recognition

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

Successful integration of individuals in macaque societies suggests that monkeys use fast and efficient perceptual mechanisms to discriminate between conspecifics. Humans and great apes use primarily holistic and configural, but also feature-based, processing for face recognition. The relative contribution of these processes to face recognition in monkeys is not known. We measured face recognition in three monkeys performing a visual paired comparison task. Monkey and humans faces were (1) axially rotated, (2) inverted, (3) high-pass filtered, and (4) low-pass filtered to isolate different face processing strategies. The amount of time spent looking at the eyes, mouth, and other facial features was compared across monkey and human faces for each type of stimulus manipulation. For all monkeys, face recognition, expressed as novelty preference, was intact for monkey faces that were axially rotated or spatially filtered and was supported in general by preferential looking at the eyes, but was impaired for inverted faces in two of the three monkeys. Axially rotated, upright human faces with a full range of spatial frequencies were also recognized, however, the distribution of time spent exploring each facial feature was significantly different compared to monkey faces. No novelty preference, and hence no inferred recognition, was observed for inverted or low-pass filtered human faces. High-pass filtered human faces were recognized, however, the looking pattern on facial features deviated from the pattern observed for monkey faces. Taken together these results indicate large differences in recognition success and in perceptual strategies used by monkeys to recognize humans versus conspecifics. Monkeys use both second-order configural and feature-based processing to recognize the faces of conspecifics, but they use primarily feature-based strategies to recognize human faces.

Original languageEnglish (US)
Pages (from-to)155-167
Number of pages13
JournalAnimal Cognition
Volume12
Issue number1
DOIs
StatePublished - Jan 2009

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Macaca
Haplorhini
monkeys
Facial Recognition
Matched-Pair Analysis
eyes
Hominidae
Mouth
Pongidae
mouth

Keywords

  • Configural processing
  • Face perception
  • Face recognition
  • Feature-based processing
  • Inversion effect
  • Non-human primates
  • Scanpaths

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Experimental and Cognitive Psychology

Cite this

Multiple perceptual strategies used by macaque monkeys for face recognition. / Gothard, Katalin M; Brooks, Kelly N.; Peterson, Mary A.

In: Animal Cognition, Vol. 12, No. 1, 01.2009, p. 155-167.

Research output: Contribution to journalArticle

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