A generalised deficit can account for problems in facial emotion recognition in schizophrenia

P J Johnston; Mary Katsikitis; V J Carr

doi:10.1016/S0301-0511(01)00114-4

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A generalised deficit can account for problems in facial emotion recognition in schizophrenia

Journal article

Peer reviewed

A generalised deficit can account for problems in facial emotion recognition in schizophrenia

P J Johnston, Mary Katsikitis and V J Carr

Biological Psychology, Vol.58(3), pp.203-227

2001

DOI: https://doi.org/10.1016/S0301-0511(01)00114-4

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Abstract

Psychology

Cognitive Sciences

Neurosciences

facial affect recognition

schizophrenia

neural networks

Neuroimaging research has shown localised brain activation to different facial expressions. This, along with the finding that schizophrenia patients perform poorly in their recognition of negative emotions, has raised the suggestion that patients display an emotion specific impairment. We propose that this asymmetry in performance reflects task difficulty gradations, rather than aberrant processing in neural pathways subserving recognition of specific emotions. A neural network model is presented, which classifies facial expressions on the basis of measurements derived from human faces. After training, the network showed an accuracy pattern closely resembling that of healthy subjects. Lesioning of the network led to an overall decrease in the network's discriminant capacity, with the greatest accuracy decrease to fear, disgust and anger stimuli. This implies that the differential pattern of impairment in schizophrenia patients can be explained without having to postulate impairment of specific processing modules for negative emotion recognition.

Details

Title: A generalised deficit can account for problems in facial emotion recognition in schizophrenia
Authors: P J Johnston (Author) - University of Newcastle
Mary Katsikitis (Author) - University of Adelaide
V J Carr (Author) - University of Newcastle
Publication details: Biological Psychology, Vol.58(3), pp.203-227
Publisher: Elsevier BV
Date published: 2001
DOI: 10.1016/S0301-0511(01)00114-4
ISSN: 0301-0511
Organisation Unit: School of Social Sciences - Legacy; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99450911702621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Behavioral Sciences; Psychology; Psychology, Biological; Psychology, Experimental

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