TY - GEN
T1 - Locked to stimulation
T2 - 2009 2nd International Congress on Image and Signal Processing, CISP'09
AU - Ueno, Takefumi
AU - Hirano, Shogo
AU - Hirano, Yoji
AU - Kanba, Shigenobu
AU - Kobayashi, Shinji
AU - Onitsuka, Toshiaki
N1 - Copyright:
Copyright 2010 Elsevier B.V., All rights reserved.
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
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U2 - 10.1109/CISP.2009.5304010
DO - 10.1109/CISP.2009.5304010
M3 - Conference contribution
AN - SCOPUS:73849145416
SN - 9781424441310
T3 - Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09
BT - Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09
Y2 - 17 October 2009 through 19 October 2009
ER -