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Delayed Auditory Feedback Vocal Intensity Changes in Schizophrenia

Published online by Cambridge University Press:  29 January 2018

F. G. Spear  and
R. L. Bird
F. G. Spear
Affiliation:
United Sheffield Hospitals
R. L. Bird
Affiliation:
Barrow Hospital, Barrow Gurney, Bristol
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Extract

When speech processes are interfered with by the technique known as Delayed Auditory Feedback (D.A.F.) various disturbances result (Lee, 1950, 1951). These have been intensively investigated and have been found to depend upon the delay and amplification of the feedback (Black, 1951) and upon personality factors (Beaumont and Foss, 1957; Spilka, 1954). These differences have been shown to extend into psychiatric diagnoses (Goldfarb and Braunstein, 1958; Spear, 1963) and it has been possible to demonstrate that schizophrenic patients show less increase in vocal intensity under conditions of D.A.F. than do other psychiatric patients and normal subjects. It was thought worth while to investigate this difference further, using a slightly more refined method of measurement of the parameter under consideration and to seek clinical correlations with the findings.

Type
Research Article
Information
The British Journal of Psychiatry , Volume 109 , Issue 459 , March 1963 , pp. 240 - 242
Copyright
Copyright © Royal College of Psychiatrists, 1963 

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References

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