[Eeglablist] Question: Single Trial ICA Component Activations

[Makoto Miyakoshi]

Dear John,

Concretely, my answer is yes. The spatial filter is stationary across ALL
data points i.e., you can apply it anywhere in the same way.

I'm disappearing but will show up on the list in November. Someone else in
the lab will answer the question in other months.

Makoto

On Wed, Aug 1, 2018 at 9:18 AM John Myers <john.myers at my.utsa.edu> wrote:

> Hello Everyone!
>
> I'm writing to ask how to generate ICA component activations (EEG.icaact)
> for single trials using the data structures in EEGLAB.
>
> I know that EEG.icaact = (EEG.icaweights*EEG.icasphere)*EEG.data. I'm
> wondering if this formula can be used to transform a single trial of EEG
> data into component activations.
>
> Concretely, my quesiton is, "Can I compute an IC activation for a single
> trial using the (EEG.icaweights*EEG.icasphere)*EEG.(single trial data)? If
> not, how can I do this using EEGLAB's structures.
>
> Best wishes,
>
> --
> John Myers, M.S.
> PhD Student
> Cognitive Neuroscience Lab
> UTSA
>


-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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