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Facial neglect.

A W Young1, E H de Haan, F Newcombe

  • 1Department of Psychology, University of Durham, U.K.

Neuropsychologia
|January 1, 1990
PubMed
Summary
This summary is machine-generated.

Following a stroke, a patient experienced prosopagnosia, specifically difficulty recognizing the left half of faces. This suggests a domain-specific unilateral neglect impacting facial recognition.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Neurology

Background:

  • Stroke can lead to complex cognitive deficits, including visual agnosias.
  • Prosopagnosia, or face blindness, impairs the ability to recognize familiar faces.

Observation:

  • A retired industrial chemist (K.L.) post-stroke reported difficulty recognizing faces, particularly the left half.
  • This deficit persisted across various face stimuli (normal, chimaeric, half-faces) and orientations.
  • Inattention to left-side facial features was evident in expression and resemblance judgments.

Findings:

  • K.L. exhibited impaired recognition of the left hemiface, even when it was part of a right-sided stimulus.
  • Spatial contrast sensitivity and recognition of non-facial objects (cars, animals, trees) were intact.

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  • The face recognition deficit occurred despite an otherwise intact visual field.

    • Implications:

    • The findings suggest a highly specific form of unilateral neglect, narrowly targeting facial stimuli.
    • This case provides insights into the neural substrates underlying specialized face processing.
    • Understanding domain-specific neglect can inform rehabilitation strategies for stroke survivors.