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WMS–III performance in epilepsy patients following temporal lobectomy

Published online by Cambridge University Press:  01 March 2004

ROBERT C. DOSS
Affiliation:
Minnesota Epilepsy Group, P.A., St. Paul, Minnesota
GORDON J. CHELUNE
Affiliation:
Department of Psychiatry and Psychology, Cleveland Clinic Foundation, Cleveland, Ohio Department of Neurology, Cleveland Clinic Foundation, Cleveland, Ohio
RICHARD I. NAUGLE
Affiliation:
Department of Psychiatry and Psychology, Cleveland Clinic Foundation, Cleveland, Ohio Department of Neurology, Cleveland Clinic Foundation, Cleveland, Ohio

Abstract

We examined performances on the Wechsler Memory Scale–3rd Edition (WMS–III) among patients who underwent temporal lobectomy for the control of medically intractable epilepsy. There were 51 right (RTL) and 56 left (LTL) temporal lobectomy patients. All patients were left hemisphere speech-dominant. The LTL and RTL patients were comparable in terms of general demographic, epilepsy, and intellectual/attention factors. Multivariate analyses revealed a significant crossover interaction (p < .001), with the RTL group scoring significantly lower on the visual than auditory indexes while the LTL group scored significantly lower on the auditory than visual memory indexes. Within-group pairwise analyses revealed statistically significant auditory versus visual index score comparisons (all p < .001) for both surgical groups. Discriminant analysis (p < .001) identified Verbal Paired Associates I, Faces I, and Family Pictures II to significantly discriminate RTL and LTL patients, with an overall correct classification rate of 81.3%. Our findings suggest that the WMS–III is sensitive to modality-specific memory performance associated with unilateral temporal lobectomy. (JINS, 2004, 10, 173–179.)

Type
Research Article
Copyright
© 2004 The International Neuropsychological Society

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