Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6025501 | NeuroImage | 2015 | 16 Pages |
Abstract
Using both simulated and real EEG recordings, we find that computing Granger causality on channel-wise spectral power suffers from a poor signal-to-noise ratio due to volume conduction, while all three multivariate approaches alleviate this issue. In real EEG recordings from subjects performing self-paced foot movements, all three multivariate methods identify neural oscillations with motor-related patterns at a similar performance level. In an auditory perception task, the application of GrangerCPA reveals significant Granger-causal links between alpha oscillations and reaction times in more subjects compared to conventional methods.
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Cognitive Neuroscience
Authors
Irene Winkler, Stefan Haufe, Anne K. Porbadnigk, Klaus-Robert Müller, Sven Dähne,