Memory for words and novel visual patterns: Repetition, recognition, and encoding effects in the event-related brain potential

Author(s): Senkfor, A. J.

Journal/Book: Psychophysiology. 1996; 33: 1010 Vermont Ave NW, Suite 1100, Washington, DC 20005. Soc Psychophysiol Res. 491-506.

Abstract: Event-related potentials (ERPs) were recorded during initial study and recognition of words and novel visual patterns. Words and patterns yielded similar recognition results that discriminated correctly recognized old items from correct new items, incorrect old items, and incorrect new items. The study phase data included a number of dissociations between words and patterns. Occasional repeated items yielded faster reaction times for both stimulus types but a late positive ERP repetition effect for words only. The study phase data differentiated words that would later be recognized versus unrecognized, but the patterns did not yield a similar encoding effect. Moreover, the study phase positivity contingent on subsequent recognition was restricted to words that received a positive semantic judgment during study. The functional relationships among the repetition, recognition, and encoding effects are discussed.

Note: Article C Vanpetten, Univ Arizona, Dept Psychol, Tucson, AZ 85721 USA

Keyword(s): event-related potential; memory; recognition; encoding; P300; novelty; AUDITORY SIGNAL DETECTION; INDIVIDUAL-DIFFERENCES; SEMANTIC CONGRUITY; AMNESIC PATIENTS; IMPLICIT MEMORY; FREQUENCY WORDS; TASK; RECALL; ERPS; MODULATION

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