Induced gamma activity is associated with conscious awareness of pattern masked nouns

Christopher Summerfield; Anthony I. Jack; Adrian P. Burgess

doi:10.1016/S0167-8760(02)00003-X

Induced gamma activity is associated with conscious awareness of pattern masked nouns

Christopher Summerfield, Anthony I. Jack, Adrian P. Burgess

Research output: Contribution to journal › Article › peer-review

Abstract

The aim of this study was to explore the relationship between electroencephalographic (EEG) activity in the gamma frequency range and conscious awareness of a visual stimulus. EEG was recorded from subjects while they were shown backward-masked words only some of which they were able to discriminate correctly. The results showed that activity in the gamma frequency range increase with reported awareness of a word independently of whether it was correctly discriminated or not. It is concluded that gamma power is associated with awareness-dependent visual processing but not with processing that occurs in the absence of awareness.

Original language	English
Pages (from-to)	93-100
Number of pages	8
Journal	International Journal of Psychophysiology
Volume	44
Issue number	2
DOIs	https://doi.org/10.1016/S0167-8760(02)00003-X
Publication status	Published - May 2002

Keywords

electroencephalography
gamma oscillations
pattern masking
awareness
consciousness
subjective reports

Access to Document

10.1016/S0167-8760(02)00003-X

Cite this

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title = "Induced gamma activity is associated with conscious awareness of pattern masked nouns",

abstract = "The aim of this study was to explore the relationship between electroencephalographic (EEG) activity in the gamma frequency range and conscious awareness of a visual stimulus. EEG was recorded from subjects while they were shown backward-masked words only some of which they were able to discriminate correctly. The results showed that activity in the gamma frequency range increase with reported awareness of a word independently of whether it was correctly discriminated or not. It is concluded that gamma power is associated with awareness-dependent visual processing but not with processing that occurs in the absence of awareness.",

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AB - The aim of this study was to explore the relationship between electroencephalographic (EEG) activity in the gamma frequency range and conscious awareness of a visual stimulus. EEG was recorded from subjects while they were shown backward-masked words only some of which they were able to discriminate correctly. The results showed that activity in the gamma frequency range increase with reported awareness of a word independently of whether it was correctly discriminated or not. It is concluded that gamma power is associated with awareness-dependent visual processing but not with processing that occurs in the absence of awareness.

KW - electroencephalography

KW - gamma oscillations

KW - pattern masking

KW - awareness

KW - consciousness

KW - subjective reports

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DO - 10.1016/S0167-8760(02)00003-X

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