August 2010
Volume 10, Issue 7
Free
Vision Sciences Society Annual Meeting Abstract  |   August 2010
Are deficits in emotional face processing preventing perception of the Thatcher illusion in a case of prosopagnosia?
Author Affiliations
  • Natalie Mestry
    School of Psychology, University of Southampton, UK
  • Tamaryn Menneer
    School of Psychology, University of Southampton, UK
  • Hayward Godwin
    School of Psychology, University of Southampton, UK
  • Rosaleen McCarthy
    Wessex Neurological Institute, Southampton General Hospital, UK
  • Nicholas Donnelly
    School of Psychology, University of Southampton, UK
Journal of Vision August 2010, Vol.10, 588. doi:10.1167/10.7.588
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      Natalie Mestry, Tamaryn Menneer, Hayward Godwin, Rosaleen McCarthy, Nicholas Donnelly; Are deficits in emotional face processing preventing perception of the Thatcher illusion in a case of prosopagnosia?. Journal of Vision 2010;10(7):588. doi: 10.1167/10.7.588.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Behavioural studies using the Thatcher illusion are usually assumed to demonstrate configurality in upright face processing. Previously, we have reported on PHD, an individual with prosopagnosia, could not discriminate Thatcherized faces but showed some evidence for residual face processing (VSS, 08). Recent functional imaging data suggests a role for emotional expression perception in discriminating Thatcherized from neutral faces (Donnelly & Hadjikhani, in preparation). Here we report on a series of emotion perception tasks were conducted on PHD and control participants. Results for PHD revealed: (1) specific deficits for distinguishing magnitude of anger and disgust; (2) poor sensitivity when discriminating faces as one of two given emotions; (3) a within category deficit for intensity, but no intensity deficit between emotions unless disgust was present; (4) a different solution for PHD relative to controls in respect of a multidimensional scaling study for sameness judgements of faces varying in emotion identity and intensity. We consider possible relationships between PHDs emotion perception and his ability to discriminate Thatcherised from normal faces.

Mestry, N. Menneer, T. Godwin, H. McCarthy, R. Donnelly, N. (2010). Are deficits in emotional face processing preventing perception of the Thatcher illusion in a case of prosopagnosia? [Abstract]. Journal of Vision, 10(7):588, 588a, http://www.journalofvision.org/content/10/7/588, doi:10.1167/10.7.588. [CrossRef]
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