Locked to stimulation: Significance level of the phase-locking factor

Takefumi Ueno, Shogo Hirano, Yoji Hirano, Shigenobu Kanba, Shinji Kobayashi, Toshiaki Onitsuka

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

2 被引用数 (Scopus)

抄録

Background: Recent neurophysiological studies have evaluated neural synchronization using wavelet transformation and the phase-locking factor (PLF). However, mathematical details of PLF and statistical processes to examine the significance of PLF have remained unclear. The present report discusses the significance level of PLF. Methods: Mathematization of PLF was performed, and results for PLF simulation were obtained, using a program for retrieving randomized samples from complex numbers within a complex unit circle in MATLAB software. Results: For PLF mean and variance, a simulated curve was fitted to the theoretical curve. Computer simulation might show that we need 100 data points and 10 subjects to use Rayleigh distribution. Conclusions: The present report demonstrates the significance level of PLF and the amount of the samples. This report may provide an additional potential application for the assessment of how neural activities are locked to stimulation, for example, to selection of the channel of magnetoencephalography study.

本文言語英語
ホスト出版物のタイトルProceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09
DOI
出版ステータス出版済み - 2009
イベント2009 2nd International Congress on Image and Signal Processing, CISP'09 - Tianjin, 中国
継続期間: 10 17 200910 19 2009

出版物シリーズ

名前Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09

その他

その他2009 2nd International Congress on Image and Signal Processing, CISP'09
国/地域中国
CityTianjin
Period10/17/0910/19/09

All Science Journal Classification (ASJC) codes

  • コンピュータ ビジョンおよびパターン認識
  • 信号処理
  • 生体医工学

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