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Selective attention and N400 attenuation with spoken word repetition

Published online by Cambridge University Press:  01 May 1998

TSUNETAKA OKITA  and
TETSUYA JIBU
TSUNETAKA OKITA
Affiliation:
Department of Science of Behavior, Hyogo College of Medicine, Nishinomiya, Japan
TETSUYA JIBU
Affiliation:
Department of Psychology, Kwansei Gakuin University, Nishinomiya, Japan
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Abstract

In two experiments, event-related brain potentials were recorded to word pairs simultaneously presented to both ears, with instructions to attend to one ear and detect occasional nonwords in that ear. This attentional manipulation yielded four patterns of word repetition on successive trials: first and second presentations attended (AA), both unattended (UU), and across ears (AU and UA). A prominent attenuation of N400 due to immediate repetition of words was observed on AA trials. However, when first presentations were ignored on UU and UA trials, no repetition effect was obtained. These findings indicate that the repetition effect on N400 depends on attentional processing of first presentations.

Keywords

Selective attentionAuditory N400Event-related brain potentialRepetition effects
Type
Research Article
Information
Psychophysiology , Volume 35 , Issue 3 , May 1998 , pp. 260 - 271
Copyright
© 1998 Society for Psychophysiological Research

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