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Related Experiment Videos

Parts and wholes in face recognition

J W Tanaka1, M J Farah

  • 1Department of Psychology, Severance Lab, Oberlin College, OH 44074.

The Quarterly Journal of Experimental Psychology. A, Human Experimental Psychology
|May 1, 1993
PubMed
Summary
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Facial recognition is holistic, meaning faces are processed as a whole rather than by individual parts. This holistic processing makes recognizing facial features easier within the context of a whole face.

Area of Science:

  • Cognitive Psychology
  • Visual Perception
  • Neuroscience

Background:

  • Human face recognition is a complex cognitive process.
  • The concept of holistic representation suggests stimuli are processed as a unified whole, not as a sum of parts.

Purpose of the Study:

  • To investigate whether faces are recognized using more holistic representations compared to other visual stimuli.
  • To test the hypothesis that parts of a face are disproportionately easier to recognize within the whole face than in isolation.

Main Methods:

  • Designed empirical tests to compare the recognition of facial parts in isolation versus within a whole face.
  • Utilized a forced-choice format for both part and whole recognition tasks.
  • Compared face recognition with other stimuli, including scrambled faces, inverted faces, and houses.

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Main Results:

  • Subjects demonstrated significantly higher accuracy in identifying facial parts when presented within the whole face compared to when presented in isolation.
  • This holistic advantage for face part recognition was not observed for scrambled faces, inverted faces, or houses.
  • The effect persisted even when whole faces differed by only a single part.

Conclusions:

  • Face recognition relies on holistic representations, where the whole face is processed preferentially over its individual components.
  • This holistic processing confers a recognition advantage for facial parts within the context of the entire face.
  • The findings support the hypothesis that holistic representation is a key characteristic of human face perception.