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A Short Battery of Simple Tests for Measuring Overinclusive Thinking

Published online by Cambridge University Press:  08 February 2018

R. W. Payne  and
D. Friedlander
R. W. Payne
Affiliation:
Psychology Department, Queen's University, Kingston, Ontario
D. Friedlander
Affiliation:
Psychology Department, Queen's University, Kingston, Ontario
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Extract

Overinclusive thinking has been regarded by some authorities as an important aspect of the thought disorder found in schizophrenic patients (8). Norman Cameron (2, 3, 4, 5), who performed the pioneer studies in this field, defined overinclusive thinking as the inability to preserve conceptual boundaries, as a result of which distantly associated and even irrelevant ideas come to be regarded as essential parts of a concept. This abnormality necessarily makes thought more abstract and less precise. Furthermore, it can lead to overlapping concepts which share elements in common, when, normally, they should be mutually exclusive, a situation which allows the thought-disordered person to entertain two mutually incompatible ideas at the same time without recognizing the contradiction.

Type
Psychological
Information
Journal of Mental Science , Volume 108 , Issue 454 , May 1962 , pp. 362 - 367
Copyright
Copyright © Royal College of Psychiatrists, 1962 

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