[FieldTrip] Question about loading in ERP data

[Julian Keil]

Hi Amna,

is there a specific reason why you want to export the ERPs as ICA components?
eegla2fieldtrip has the option to use ’timelock’ as the second input option, which might be more sensible in your case.

Hope that helps,

Julian

> Am 27.11.2019 um 02:23 schrieb Amna Hyder <hyder.amna at gmail.com>:
> 
> Hi, 
> I did all my preprocessing in EEGlab and ERPlab and wanted to put in my ERP files into fieldtrip to do the cluster permutation analysis on my ERPs. I tried using the function eeglab2fieldtrip as specified in the following link: https://mailman.science.ru.nl/pipermail/fieldtrip/2006-March/000441.html <https://mailman.science.ru.nl/pipermail/fieldtrip/2006-March/000441.html>
> I used the 'component analysis' option eg: comp = eeglab2fieldtrip(ERP, 'componentanalysis').
> However, I get the following error: 
> Reference to non-existent field 'icachansind'.
> Error in eeglab2fieldtrip (line 54)
>  header.label   = { tmpchanlocs(EEG.icachansind).labels };
> 
> When I comment out these lines I run into another error:
> Reference to non-existent field 'icaact'.
> 
> Error in eeglab2fieldtrip (line 119)
>         if isempty(EEG.icaact)
> 
> It seems that this function requires ICA information in the EEGLAB ERP file, which isnt stored in the way that it is called. Can someone take a look into the function? Do I have to get the ERPs again in fieldtrip?
> Amna
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> https://doi.org/10.1371/journal.pcbi.1002202

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