کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4336767 | 1295227 | 2007 | 17 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Exploration of event-induced EEG phase synchronization patterns in cognitive tasks using a time–frequency-topography visualization system Exploration of event-induced EEG phase synchronization patterns in cognitive tasks using a time–frequency-topography visualization system](/preview/png/4336767.png)
In this paper, we present a method for the study of synchronization patterns measured from EEG scalp potentials in psychophysiological experiments. This method is based on various techniques: a time–frequency decomposition using sinusoidal filters which improve phase accuracy for low frequencies, a Bayesian approach for the estimation of significant synchrony changes, and a time–frequency-topography visualization technique which allows for easy exploration and provides detailed insights of a particular experiment. Particularly, we focus on in-phase synchrony using an instantaneous phase-lock measure. We also discuss some of the most common methods in the literature, focusing on their relevance to long-range synchrony analysis; this discussion includes a comparison among various synchrony measures. Finally, we present the analysis of a figure categorization experiment to illustrate our method.
Journal: Journal of Neuroscience Methods - Volume 161, Issue 1, 30 March 2007, Pages 166–182