<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Courier New, courier, monaco, monospace, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1498170882182_13550"> Hi All,</div><div id="yui_3_16_0_ym19_1_1498170882182_13551" dir="ltr"> I have processed several datasets with EEGLAB tools' "Basic FIR filter (new, default)". I used 0.5Hz lower edge and 50Hz upper edge followed by additional processing such as ICA. I am now preparing to use this data with the SIFT toolbox for the first time. I expect to look at Direct DTF, Partial Coherence, Complex Spectral Density, and probably other things too. Is there an issue with the filtering method not being zero-phase (acausal)?</div><div id="yui_3_16_0_ym19_1_1498170882182_13736" dir="ltr"> Thanks for any help.</div><div id="yui_3_16_0_ym19_1_1498170882182_13737" dir="ltr">Davida</div></div></body></html>