Publication 2083

Lachaux J.-P., Rodriguez E., Le Van Quyen M., Lutz A., Martinerie J. & Varela F. J. (2000) Studying single-trials of phase-synchronous activity in the brain. International Journal of Bifurcation and Chaos 10(10): 2429–2439. Fulltext at
This paper introduces a new method, single-trial phase locking statistics (S-PLS) to estimate phase locking in single trials of brain signals between two electrodes. The possibility of studying single trials removes an important limitation in the study of long-range synchrony in brain signals. S-PLS is closely related to our previous method, phase locking statistics (PLS) that estimates phase locking over a set of trials. The S-PLS method is described in detail and applied to human surface recordings during the task of face-recognition. We compare these results with those provided by PLS and show that they are qualitatively very similar, although S-PLS provides better discrimination of synchronic episodes.


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