[Eeglablist] ICA for muscle artefacts from overt responses?

[Makoto Miyakoshi]

Dear Wout,

> In general: is it a good idea to run an ICA, identify components related to
> these muscle artefacts and then correct for these (in addition to correcting
> for eye blinks)?

That would be a second best. The best is to use ICA to pick up brain
activity. In general, EMG is not the best signal to be decomposed by
ICA compared to EOG or even EEG.

Makoto

2012/10/30 Wout Duthoo <Wout.Duthoo at ugent.be>:
> Hi,
>
>
>
> I ran an EEG experiment in which vocal responses were recorded, so that
> strong muscle artefacts are visible in the EEG signal.
>
>
>
> In general: is it a good idea to run an ICA, identify components related to
> these muscle artefacts and then correct for these (in addition to correcting
> for eye blinks)? Or would it be better not to correct for these motor
> artefacts, given that they will probably average out when calculating the
> grand average?
>
>
>
> Thanks in advance!
>
>
>
> Wout
>
>
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-- 
Makoto Miyakoshi
JSPS Postdoctral Fellow for Research Abroad
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego