OperaV1, Main, Exploration, bibRecord, 002129

Magnetoencephalographic responses corresponding to individual subjective preference of sound fields

Identifieur interne : 002129 ( Main/Exploration ); précédent : 002128; suivant : 002130

Magnetoencephalographic responses corresponding to individual subjective preference of sound fields

Auteurs : Y. Soeta [Japon] ; S. Nakagawa [Japon] ; M. Tonoike [Japon] ; Y. Ando [Japon]

Source :

Journal of sound and vibration [ 0022-460X ] ; 2002.

RBID : Pascal:03-0084016

Descripteurs français

Pascal (Inist)
- Homme, Psychoacoustique, Préférence, Réaction corticale, Etude expérimentale, Magnétoencéphalographie, Fonction autocorrélation, 4366.
Wicri :
- topic : Homme.

English descriptors

KwdEn :
- Autocorrelation function, Cortical reaction, Experimental study, Human, Magnetoencephalography, Preference, Psychoacoustics.

Abstract

To investigate human cortical responses that correspond to subjective preference of sound fields, an attempt is made here to analyze the autocorrelation function (ACF) of magnetoencephalography (MEG) under the condition of varying delay time of single reflections. According to previous studies, it is assumed that a similar repetitive feature of the MEG alpha-waves range (8-13 Hz) is related to subjective preference in terms of the effective duration of the ACF. The source signal was the word "piano" which had a 0.35 s duration. The delay time, Δt₁, was varied at five levels (0, 5, 20, 60, and 100 ms) The scale values of the subjective preference of each subject were obtained by the paired-comparison tests. To compare the results of the MEG measurements with the scale values of the subjective preference, combinations of a reference stimulus (Δt₁ = 0 ms) and test stimuli (Δt₁=0, 5, 20, 60, and 100 ms) were presented alternately 50 times, and the MEGs were analyzed. It is found that subjective preference for each individual and the effective duration of the ACF of the MEG alpha waves are linearly related.

Affiliations:

Japon

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000544
to stream PascalFrancis, to step Curation: 000104
to stream PascalFrancis, to step Checkpoint: 000518
to stream Main, to step Merge: 002209
to stream Main, to step Curation: 002129

Le document en format XML

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<front><div type="abstract" xml:lang="en">To investigate human cortical responses that correspond to subjective preference of sound fields, an attempt is made here to analyze the autocorrelation function (ACF) of magnetoencephalography (MEG) under the condition of varying delay time of single reflections. According to previous studies, it is assumed that a similar repetitive feature of the MEG alpha-waves range (8-13 Hz) is related to subjective preference in terms of the effective duration of the ACF. The source signal was the word "piano" which had a 0.35 s duration. The delay time, Δt<sub>1</sub>
, was varied at five levels (0, 5, 20, 60, and 100 ms) The scale values of the subjective preference of each subject were obtained by the paired-comparison tests. To compare the results of the MEG measurements with the scale values of the subjective preference, combinations of a reference stimulus (Δt<sub>1</sub>
 = 0 ms) and test stimuli (Δt<sub>1</sub>
=0, 5, 20, 60, and 100 ms) were presented alternately 50 times, and the MEGs were analyzed. It is found that subjective preference for each individual and the effective duration of the ACF of the MEG alpha waves are linearly related.</div>
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Magnetoencephalographic responses corresponding to individual subjective preference of sound fields

Magnetoencephalographic responses corresponding to individual subjective preference of sound fields

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri