Event-related Brain Potentials as a Measure of Performance on WISC-III and WAIS-R NI Similarities Sub-tests

Abstract

J.F. Connollyabcd*, Y. Marchande, A. Majora & R.C.N. D'Arcye a Cognitive/Clinical Neuroscience Unit, Department of Psychology, Dalhousie University b Department of Medicine , Dalhousie University c Department of Pediatrics , Dalhousie University d Division of Psychiatry , Dalhousie University e Institute for Biidiagnostics (Atlantic), National Research Council , Canada * Cognitive/Clinical Neuroscience Unit, Department of Psychology, Life Sciences Centre, Dalhousie University, Halifax, NS, Canada , B3H 4J1 E-mail: john.connolly@dal.ca Communication difficulties are a common consequence of brain injury and neuropathological processes. Equally common is the inability to assess intellectual functioning in many communication-impaired populations because the aphasia and physical disability of such patients prevents measurable performance on traditionally administered tests of mental functioning. This study demonstrates that concept formation abilities can be assessed using event-related brain potentials. It also provides further evidence for the efficacy of this innovative assessment method in which standardized and validated psychometric tests are formatted for computer presentation and simultaneous recording of neural activity, which serves as the response measure in lieu of verbal/behavioral responses.

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