[Eeglablist] Causal Filtering and Coherence

Srikanth Damera srd49 at georgetown.edu
Mon Jul 17 13:05:52 PDT 2017

Dear EEGlablist,

I have a question regarding the use of causal filters and coherence. For a
little background I'm trying to classify  EEG data into one of two
conditions. I care about the onset of this classification so I have
causally filtered my data (.2Hz-30Hz) in order to avoid smearing it back in

I have identified a few areas that seem to show above chance classification
and I would now like to examine how the functional connectivity (coherence
in beta band: 15-30Hz) of these areas change between the two conditions
through time. Can I still use causal filtered data despite potential phase
distortions in this analysis or do I need to use non-causal filtered data?
Thank you!


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