Presentation | 2010-03-09 Micro-process of phase-locking for generating the auditory evoked fields : Analysis of the phase-locking within each of the trials and across the trials Takashi HAMADA, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | Neuromagnetic signals above the auditory cortex were passed through a band-pass filter between 3 and 16 Hz and then divided into analytic (instantaneous) amplitudes and phases by Hilbert transformation. Both the amplitudes and phase-locking were increased, on average across the trials, at around the timing of N100. These facts per se failed to prove the "phase-locking model", however, as a possible mechanism for generating the auditory evoked fields, because simulation of the alternative "signal plus noise model" also yielded the same averaged results. Instead, analysis in each of the trials revealed sudden phase resets at random timings associated with "waning" of the amplitudes, which supports the "phase locking model" with a stochastic sense. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Magnetoencephalography / Auditory evoked fields / Phase-locking / Hilbert transformation |
Paper # | NLP2009-168 |
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Committee | NLP |
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Conference Date | 2010/3/2(1days) |
Place (in Japanese) | (See Japanese page) |
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Registration To | Nonlinear Problems (NLP) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Micro-process of phase-locking for generating the auditory evoked fields : Analysis of the phase-locking within each of the trials and across the trials |
Sub Title (in English) | |
Keyword(1) | Magnetoencephalography |
Keyword(2) | Auditory evoked fields |
Keyword(3) | Phase-locking |
Keyword(4) | Hilbert transformation |
1st Author's Name | Takashi HAMADA |
1st Author's Affiliation | Kansai center, National Institute of Advanced Industrial Science and Technology(AIST)() |
Date | 2010-03-09 |
Paper # | NLP2009-168 |
Volume (vol) | vol.109 |
Number (no) | 458 |
Page | pp.pp.- |
#Pages | 5 |
Date of Issue |