[Eeglablist] ERSP singletrial in STUDY

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Wed Oct 7 14:49:17 PDT 2015

Dear Alice,

I saw the pictures. I agree with you. There must be a problem in code.
Please file the problem to EEGLAB bugzilla.
I appreciate your patience and cooperation.


On Tue, Oct 6, 2015 at 6:12 AM, Alice Bollini <alice.bollini at univr.it>

> Hi Everyone,
> I have just done the single_trials analysis in a STUDY with one subject to
> get ERSP difference between two conditions, I used both Fieldrip statistics
> and EEGLAB statistics. I got these results :
> when I didn't make the statistic I got a figure with normal DB values(see
> colorbar)
> https://www.dropbox.com/s/czfsrzzwvmdnrof/WithoutAnalysis.jpg?dl=0
> but with both single_trial analyses I got very high DB results,
> https://www.dropbox.com/s/cvh9feca0qoxtkj/WithSingleTrialstAnalysis.jpg?dl=0
> that is quite unlikely. This happens both for channel and component
> measures and with different subjects. I have also noticed that with normal
> ERPs when I computed the single-trials analyses  I obtained a decrease in
> microVolt compared with ERPs without analyses.
> Any suggestions would be welcome!
> Thanks
> Alice
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Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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