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On the search for the neurophysiological manifestation of recollective experience

Published online by Cambridge University Press:  01 July 2000

KEVIN M. SPENCER
Affiliation:
Department of Psychology and Beckman Institute, University of Illinois at Urbana-Champaign, USA
ENRIQUE VILA ABAD
Affiliation:
Facultad de Psicologia, Departamento de Metodologia Ciencias Comportamiento, Universidad Nacional de Educacion a Distancia, Ciudad Universitaria, Madrid, Spain
EMANUEL DONCHIN
Affiliation:
Department of Psychology and Beckman Institute, University of Illinois at Urbana-Champaign, USA
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Abstract

M.E. Smith (1993) obtained event-related brain potentials (ERPs) from subjects performing a recognition memory task using “remember” (R) and “know” (K) judgments, and reported observing in the ERP a “neurophysiological manifestation of recollective experience” as a difference between the positive waveforms elicited by stimuli that yielded R and K judgments. We replicated his experiment and examined the componential structure of the R>K effect in two ways. First, we found that correction for P300 latency jitter eliminated the effect reported by Smith. Second, the application of principal component analysis indicated that the positive waveform elicited by the words in the test list was a P300. These analyses do not support the hypothesis that there is a new component (the “memory-evoked shift”) that is a specific manifestation of recollection.

Type
Research Article
Copyright
2000 Society for Psychophysiological Research

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