L Baving1, T Rellum, M Laucht, M H Schmidt. 1. Department of Child and Adolescent Psychiatry, University of Utrecht, The Netherlands. l.baving@psych.azu.nl
Abstract
OBJECTIVE: To measure neurophysiological correlates of inhibition in children with anxiety disorders. METHOD: Anxiety-disordered children and healthy control children (11 years of age) performed a cued Continuous Performance Test (CPT-AX). Event-related potentials following NoGo and distractor stimuli as well as performance data were examined for group differences. RESULTS: Anxious children displayed a significantly larger NoGo-related N1 global field power than did control children while no group differences were found for the N2 and P3 potentials. Groups did not differ in CPT performance. CONCLUSIONS: Anxious children showed early attentional enhancement (N1) to stimuli indicating need for inhibition but not increased resource allocation to actual response inhibition.
OBJECTIVE: To measure neurophysiological correlates of inhibition in children with anxiety disorders. METHOD:Anxiety-disorderedchildren and healthy control children (11 years of age) performed a cued Continuous Performance Test (CPT-AX). Event-related potentials following NoGo and distractor stimuli as well as performance data were examined for group differences. RESULTS: Anxious children displayed a significantly larger NoGo-related N1 global field power than did control children while no group differences were found for the N2 and P3 potentials. Groups did not differ in CPT performance. CONCLUSIONS: Anxious children showed early attentional enhancement (N1) to stimuli indicating need for inhibition but not increased resource allocation to actual response inhibition.