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Journal Article

Citation

Ilan AB, Miller J. Psychophysiology 1999; 36(2): 209-219.

Affiliation

Department of Psychology, University of California, San Diego, USA. aaron@eeg.com

Copyright

(Copyright © 1999, Society for Psychophysiological Research, Publisher John Wiley and Sons)

DOI

unavailable

PMID

10194968

Abstract

Previous findings suggest that motoric response preparation cannot be initiated in parallel with memory scanning. In the present study, response preparation was initiated with the aid of a precue to examine whether such preparation can be maintained or continued while memory scanning is active. In Experiment 1, each trial began with a colored square indicating which hand might be needed to respond. A probe letter's memory set membership determined whether the primed response should be made or withheld. Lateralized readiness potentials were initiated by the square precue and continued to increase after letter presentation, suggesting that once response preparation had been initiated it was continued in parallel with memory scanning. Experiment 2 suggested that the difficulty of the concurrent memory search had little effect on the continuation of response preparation. The results support the view that motoric response preparation consists of at least two qualitatively distinct phases--initiation and continuation.


Language: en

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