[Eeglablist] problems with REGICA

[柳昀哲]

Hi, I am processing EEG data with EEGLAB.
the toolbox-REGICA is very powerful and efficient to detect EOG component,
but here is a problem that every time  when the REGICA is done , the
 channel location missed.
ps: my EEG data was recorded by Brain vision recorder system in 64 channel
with 4 EOG Channel, as HEOU,HEOD,VEOL,VOUR.
I change the channel with the commmand EEG channel operation which in
ERPLAB, and turn the 4EOG channels into 2, as HEOG,VEOG.
And,then I import the channnel location, as you can see:
[image: image.png]

but,unfortunetly, when the REGICA was done, the channel location always
missed.
Sorting components in descending order of mean projected variance ...
Permuting the activation wave forms ...
pop_regica(): cRLS algorithm will be used for the rejection of ocular
artifacts

(crls_regica) ..........[OK]
eeg_checkset note: data array made 3-D
Scaling components to RMS microvolt
eeg_checkset: recomputing the ICA activation matrix ...
eeg_checkset warning: number of channels different in data and channel
file/struct: channel file/struct removed
Warning: the size of the channel location structure does not match with
         number of channels. Channel information have been removed.
Creating a new ALLEEG dataset 8
Done.
>>



would you please tell me in which step I went wrong?

Best wishes
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