Comparison of Non-Brain-Damaged Schizophrenic and Brain-Damaged Non-Schizophrenic Males on the Wist

Abstract

The present investigation is addressed to the issue of differential diagnosis of schizophrenia and brain damage in the area of thought disorder. The Whitaker Index of Schizophrenic Thinking (WIST), Form A, was used to ascertain the extent and type of thought disorder of the two groups of Ss (male VA patients). Results showed that the WIST Summary score did not differentiate the two groups of Ss. Subtest scores and error types, however, discriminated the two groups. Results were discussed in light of Mednick's theory of psychological deficit and in terms of contributions to variance stemming from the test's psychometric properties (i.e., stimulus complexity).

References

Bruning

J. L.

Kintz

B. L.

Computational handbook of statistics. Glenview, Ill.: Scott, Foresman, 1968.

Chapman

L. J.

Confusion of figurative and literal usages of words by schizophrenics and brain-damaged patients. Journal of Abnormal and Social Psychology, 1960, 60, 412–416.

Maher

B. A.

Principles of psychopathology: An experimental approach. New York: McGraw-Hill, 1966.

McGaughran

L. S.

Moran

L. J.

Differences between schizophrenic and brain-damaged groups in conceptual aspects of object sorting. Journal of Abnormal and Social Psychology, 1957, 54, 44–49.

Mednick

S. A.

A learning theory approach to research in schizophrenia. Psychological Bulletin, 1958, 55, 316–327.

Mednick

S. A.

Learning theory and schizophrenia: A reply to a comment. Psychological Bulletin, 1959, 56, 315–316.

Russell

E. W.

Neuringer

Goldstein

Assessment of brain damage: A neuropsychological key approach. New York: Wiley-Interscience, 1970.

Shearn

C. R.

Whitaker

L. C.

Selecting subjects in studies of schizophrenia. Schizophrenia, 1969, 1, 4–8.

Weigl

[On the psychology of the so-called processes of abstraction.] (transl.)

Journal of Abnormal and Social Psychology, 1941, 36, 3–33.

10.

Whitaker

L. C.

Problems in the measurement of schizophrenic thinking. Presented at the Rocky Mountain Psychological Association Convention, May, 1965, Denver, Colorado.

11.

Whitaker

L. C.

Einleitung zum Schizophrenie-Denk-Index (WSDI). Dynamische Psychiatrie, 1970, 3, 86–98.

12.

Whitaker

L. C.

Manual for the Whitaker Index of Schizophrenic Thinking (WIST). Los Angeles, Calif.: Western Psychological Services, in press, 1972.

13.

Zimet

C. N.

Fishman

D. B.

Psychological deficit in schizophrenia and brain damage. Annual Review of Psychology, 1970, 21, 113–146.