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Anterior‐posterior locus of lesion and personality: Support for the caudality hypothesis
Author(s) -
Black F. William,
Black Iryna Lawriw
Publication year - 1982
Publication title -
journal of clinical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.124
H-Index - 119
eISSN - 1097-4679
pISSN - 0021-9762
DOI - 10.1002/1097-4679(198207)38:3<468::aid-jclp2270380302>3.0.co;2-8
Subject(s) - minnesota multiphasic personality inventory , psychology , personality , confounding , lesion , audiology , clinical psychology , developmental psychology , psychiatry , pathology , medicine , social psychology
Investigated the effects of discrete brain lesions on MMPI performance in well‐matched samples of patients with anterior and posterior injuries. Because of the nature of the samples and careful matching for potentially confounding variables, particular emphasis could be given to the study of brainbehavior relationships. Patients with posterior lesions produced a significantly more abnormal composite MMPI profile, had a consistent tendency to produce elevated (70+) individual MMPI scales, and had individual profiles that were universally rated as abnormal using standard criteria. The differential MMPI patterns exhibited by these two samples were compatible with traditionally held clinical hypotheses with regard to distinct personality differences secondary to focal lesions in the caudal plane. It is our conclusion that lesion caudality does have a differential effect upon MMPI performance when factors such as cognitive, motor, and sensory defects are controlled adequately. The implications are that this effect is locus specific and is not necessarily related to the degree of other neurobehavioral impairment, as has been hypothesized previously.