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Are deficits in emotional face processing preventing perception of the Thatcher illusion in a case of prosopagnosia?

Are deficits in emotional face processing preventing perception of the Thatcher illusion in a case of prosopagnosia?
Are deficits in emotional face processing preventing perception of the Thatcher illusion in a case of prosopagnosia?
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, 09). 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.
588
Mestry, Natalie
7f725141-430d-4118-a43d-943f6bae787f
Menneer, Tamaryn
d684eaf6-1494-4004-9973-cb8ccc628efa
Godwin, Hayward
df22dc0c-01d1-440a-a369-a763801851e5
McCarthy, Rosaleen A.
5377d3de-2597-4427-801b-6b4c61058568
Donnelly, Nick
05c83b6b-ee8d-4c9d-85dc-c5dcd6b5427b
Mestry, Natalie
7f725141-430d-4118-a43d-943f6bae787f
Menneer, Tamaryn
d684eaf6-1494-4004-9973-cb8ccc628efa
Godwin, Hayward
df22dc0c-01d1-440a-a369-a763801851e5
McCarthy, Rosaleen A.
5377d3de-2597-4427-801b-6b4c61058568
Donnelly, Nick
05c83b6b-ee8d-4c9d-85dc-c5dcd6b5427b

Mestry, Natalie, Menneer, Tamaryn, Godwin, Hayward, McCarthy, Rosaleen A. and Donnelly, Nick (2010) Are deficits in emotional face processing preventing perception of the Thatcher illusion in a case of prosopagnosia? Vision Sciences Society. p. 588 . (doi:10.1167/10.7.588).

Record type: Conference or Workshop Item (Poster)

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, 09). 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.

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More information

Published date: 2 August 2010
Venue - Dates: Vision Sciences Society, 2010-08-02
Organisations: Psychology

Identifiers

Local EPrints ID: 164295
URI: http://eprints.soton.ac.uk/id/eprint/164295
PURE UUID: 681619a2-a2c4-43f6-bfe9-a67e9a7f1189
ORCID for Hayward Godwin: ORCID iD orcid.org/0009-0005-1232-500X

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Date deposited: 22 Sep 2010 13:52
Last modified: 14 Mar 2024 02:55

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Contributors

Author: Natalie Mestry
Author: Tamaryn Menneer
Author: Hayward Godwin ORCID iD
Author: Rosaleen A. McCarthy
Author: Nick Donnelly

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