Objective: We evaluated event-related potentials (ERPs) elicited by attentional disengagement in individuals with autism. Methods: Sixteen adults with autism, 17 adults with mental retardation and 14 healthy adults participated in this study. We recorded the pre-saccade positive ERPs during the gap/overlap task under which a peripheral stimulus was presented subsequent to a stimulus in the cent...

According to the activation-orienting hypothesis the distribution of attention in space is biased in the direction contralateral to the more activated hemisphere. The present investigation tested this proposal and evaluated the nature of hemispheric differences in orienting control. Activation imbalance was produced by a unilateral visual stimulus. The distribution of attention was measured usi...