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Generating Strictly Controlled Stimuli for Figure Recognition Experiments
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Seeing faces as objects: no face inversion effect with geometrical discrimination.

Pamela M Pallett1, Donald I A MacLeod

  • 1Department of Psychological and Brain Sciences, Dartmouth College, 6207 Moore Hall, Hanover, NH 03755, USA. pamela.m.pallett@dartmouth.edu

Attention, Perception & Psychophysics
|January 26, 2011
PubMed
Summary
This summary is machine-generated.

Face inversion hinders perception but not distance estimation. Geometric face discrimination is unaffected by inversion, suggesting analytical processing for such tasks.

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Area of Science:

  • Cognitive psychology
  • Neuroscience
  • Visual perception

Background:

  • Face inversion typically impairs face perception, recognition, and discrimination.
  • However, the ability to estimate facial feature distances remains unaffected by inversion.

Purpose of the Study:

  • To investigate the dissociation between general face perception and facial feature distance estimation.
  • To examine the effect of face inversion on discriminating geometric distortions (compression, elongation, expansion) in faces.

Main Methods:

  • Participants performed discrimination tasks on geometrically distorted faces.
  • The impact of face inversion on discrimination thresholds and response times was analyzed.
  • Faces varied in geometric distortion and naturalness of configuration.

Main Results:

  • Geometric face discrimination was not subject to the typical face inversion effect.
  • Inversion did not impair discrimination thresholds for geometric face distortions.
  • Response times for distance judgments were faster with inverted faces, particularly those with natural configurations.

Conclusions:

  • The findings suggest analytical processing strategies are employed for geometric face discrimination tasks.
  • Holistic face encoding depth is influenced by task demands, face orientation, and face-prototype similarity.