[Eeglablist] Effect of anti-aliasing low-pass filter on connectivity analysis

[Vito De Feo]

Dear Makoto,
this will not affect the connectivity analysis if the frequency of interest are far from the Nyquist frequency. For example if you downsample to 500 Hz (Nyquist freq = 250 Hz) you will have no problem in the band 0-100 Hz.
Best
Vito

Il giorno 20/giu/2015, alle ore 00:28, Makoto Miyakoshi ha scritto:

> Dear List,
> 
> If I use zero-phase low-pass filter for anti-aliasing, does it affect the subsequent connectivity analysis? I ask this because EEGLAB pop_resample() automatically applies it. If it does, is there a workaround? Should I use minimum phase causal filter for anti-aliasing?
> 
> -- 
> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
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