Objective: Deficits in cognitive flexibility and response inhibition have been linked to perturbations in cortico-striatal-thalamic circuitry in adult obsessive-compulsive disorder (OCD). Although similar cognitive deficits have been identified in pediatric OCD, few neuroimaging studies have been conducted to examine its neural correlates in the…

This study attempts to determine if individual differences in multitask performance are due in part to the cognitive competence (i.e., the consistent, rule-based strategy) the subject brings to the task. A battery of learning (discrimination shift, transposition, incidental learning and paired-associate learning), cognitive-developmental…

Reviews "Levels of Cognitive Development," which presents a theory of cognitive development integrating discrimination- learning research with understanding of higher cognitive processes. Argues that strengths include its presentation of systematic research and providing continuity between past and present models. Weaknesses include…