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Self-monitoring in speech production: effects of verbal hallucinations and negative symptoms

Published online by Cambridge University Press:  09 July 2009

I. Leudar ,
P. Thomas  and
M. Johnston
I. Leudar*
Affiliation:
Department of Psychology and Department of Education, University of Manchester; Department of Psychological Medicine, University of Wales College of Medicine
P. Thomas
Affiliation:
Department of Psychology and Department of Education, University of Manchester; Department of Psychological Medicine, University of Wales College of Medicine
M. Johnston
Affiliation:
Department of Psychology and Department of Education, University of Manchester; Department of Psychological Medicine, University of Wales College of Medicine
*
1Address for correspondence: Dr Ivan Leudar, Department of Psychology, University of Manchester, Manchester M13 9PL
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Synopsis

This paper reports results of a study on self-monitoring in speech production. Thirty schizophrenics, varying in verbal hallucination and in negative symptoms status, and 17 controls were tested on the reporter test. The position of interruptions of the speech-flow to repair errors was used to indicate whether the detection of the errors was through monitoring of internal phonetic plans or through external acoustic feedback. We have found that the internal error detection was twice as frequent in controls as in schizophrenics. The relevance of this finding to Frith's (1992) model of schizophrenia is discussed. Our conclusion is that the problem with internal monitoring of phonetic plans is common to all schizophrenics, and not just to those with verbal hallucinations.

Type
Original Articles
Information
Psychological Medicine , Volume 24 , Issue 3 , August 1994 , pp. 749 - 761
Copyright
Copyright © Cambridge University Press 1994

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