Neural correlates of cued recall with and without retrieval of source memory

A SOURCE memory procedure was used to investigate whether event-related pot entials (ERPs) reflect the retrieval of episodic information (recollection) on tests of word-stem cued recall. 'Cued recall ERP effects' for recalled items were found to differ only in their magnitudes, and not their scalp di stributions, according to the accuracy of source memory. This finding stron gly supports the hypothesis that cued recall ERP effects reflect quantitati ve variation in the amount or quality of information which can be retrieved about recently experienced events. Topographic analyses also revealed that the distribution of the cued recall ERP effects changed over time, reflect ing the activity of at least two temporally and neuroanatomically dissociab le neural populations contributing to recollection on this task. (C) 1998 L ippincott Williams & Wilkins.