Preceding stimulus sequence effects on the oddball‐P300 in young and healthy older adults

The present study examined the mechanisms underlying stimulus sequence effects on the parietal P300 and frontal P3a elicited by infrequent targets in an oddball paradigm and compared these effects between young and older adults. Fifty young and 50 healthy older adults completed a simple visual oddball task including an infrequent (20%) target stimulus. A temporo‐spatial principal component (PCA) analysis was used to disentangle the parietal P300...