An ERP developmental study of repetition priming by auditory novel stimuli

Author(s): Friedman, D., Rothstein, M.

Journal/Book: Psychophysiology. 1996; 33: 1010 Vermont Ave NW, Suite 1100, Washington, DC 20005. Soc Psychophysiol Res. 680-690.

Abstract: Event-related potentials were recorded from participants 5-7, 9-11, 14-16, and 22-28 years old during an auditory novelty oddball task. In this task, stimuli about which the participant is not instructed (i.e., novel or uncategorized) typically elicit a more frontally oriented P3 scalp topography (novelty P3). In contrast, stimuli to which the participant must respond (i.e., target or precategorized) elicit a P3 with a more posterior scalp topography. Repetition of identical novel stimuli led to a similar reduction in novelty P3 amplitude for all age groups. Moreover, with repetition the shift in scalp topography of the novelty P3 to a more parietally oriented distribution was similar in children and adults. A second component, the P3(2) (assumed to be an analog of the P3b), exhibited a repetition priming effect in both the adults and the youngest children. The fact that age-related differences induced by novel repetition were small and not systematic indicates that the processing of novel information is similar across a wide age range.

Note: Article YM Cycowicz, New York State Psychiat Inst & Hosp, Cognit Electrophysiol Lab, 722 W 168TH St, Unit 58, New York, NY 10032 USA

Keyword(s): event-related potentials; novelty P3; development; EVENT-RELATED POTENTIALS; SCALP DISTRIBUTION; INTRACEREBRAL POTENTIALS; VISUAL-STIMULI; RARE TARGET; COGNITIVE-DEVELOPMENT; OLDER ADULTS; AMPLITUDE; YOUNG; VARIANCE

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