ABSTRACT
Event-related potentials (ERPs) assess the timing and neurophysiological basis of cognition in humans. The P3 ERP component (Desmedt et al., 1965; Sutton et al., 1965) has been associated with psychological constructs including orientation, attention, stimulus evaluation, and memory. The functional significance and neural generators of the P3 are under active investigation (Desmedt et al., 1979; Donchin, 1979; Hillyard and Picton, 1987).