Presentation 1999/10/14
Scalp Recorded Electrical Brain Activity Underlying Lexical Processing
Daniel E. Callan, Akiko M. Callan, Shinobu Masaki, Kiyoshi Honda,
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Abstract(in English) This study was conducted to explore the hypothesis that the perception and production of words is carried out by cell assemblies composed of neuronal groups distributed throughout the brain. It has been proposed that neural activity in the gamma frequency range may be responsible for binding neuronal groups that compose cell assemblies. In this study, gamma and alpha band scalp recorded EEG responses for auditory recognition and speech production planning of words and pseudowords were analyzed over single stimulus sweeps using measures of mutual information between electrode pairs and of integration (degree of statistical dependence across all elesctrodes). Consistent with the idea of cell assemblies, the results of both the mutual information and integration analyses suggest that distributed neuronal groups show greater statistical dependence for words than for pseudowords.
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Keyword(in English) Word recognition/prodection / Mutual information / Cell assembly / Single sweep EEG / Gamma / Alpha
Paper # TL99-16
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Conference Date 1999/10/14(1days)
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Registration To Thought and Language (TL)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Scalp Recorded Electrical Brain Activity Underlying Lexical Processing
Sub Title (in English)
Keyword(1) Word recognition/prodection
Keyword(2) Mutual information
Keyword(3) Cell assembly
Keyword(4) Single sweep EEG
Keyword(5) Gamma
Keyword(6) Alpha
1st Author's Name Daniel E. Callan
1st Author's Affiliation ATR Human Information Processing Research Laboratories()
2nd Author's Name Akiko M. Callan
2nd Author's Affiliation ATR Human Information Processing Research Laboratories
3rd Author's Name Shinobu Masaki
3rd Author's Affiliation ATR Human Information Processing Research Laboratories
4th Author's Name Kiyoshi Honda
4th Author's Affiliation ATR Human Information Processing Research Laboratories
Date 1999/10/14
Paper # TL99-16
Volume (vol) vol.99
Number (no) 352
Page pp.pp.-
#Pages 8
Date of Issue