[Eeglablist] EEGLABTOOL PREPROCESSING

[Cedric Cannard]

Dear Soniya,

You can, but I wouldn't reject anything below 95% confidence (maybe even 99% for heart and noise components). The current default is to reject only eye and muscle components with at least 90% confidence. I don't recommend rejecting the "Other" category as it may contain some meaningful brain information.

Cedric Cannard

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------- Original Message -------
On Thursday, June 15th, 2023 at 3:07 AM, Soniya Usgaonkar <soniya at gec.ac.in> wrote:

> Thanks, I'll check it out! .i had one more query when i use ica decomposition option of eeg lab tool .i get ica components having brain activity and eye and channel and others .can i retain only brain activity and reject all other?
>
> Regards and Thanks
> Soniya Usgaonkar,
> Assistant Professor,
> Department Of Information Technology,
> Goa college Of Engineering,
> Farmagudi-Goa
>
> On Tue, Jun 13, 2023 at 11:02 PM Cedric Cannard <ccannard at protonmail.com> wrote:
>
>> Dear Second,
>>
>> This is Biosemi data right? You have alphabetic labeling format and the default BEM channel template is expecting a different labeling format (e.g., A1 = Fp1).
>>
>> You can try to load this location template instead: standard_alphabetic.elc in the same folder (eeglab\plugins\dipfit5.2\standard_BEM\elec)
>>
>> Or you can convert them to the right labeling format, which I recommend as it facilitates the interpretation of results (F for frontal, P for parietal, etc.).
>>
>> See here to convert them (if you have 64-channel Biosemi):
>> https://urldefense.com/v3/__https://www.biosemi.com/pics/cap_64_layout_medium.jpg__;!!Mih3wA!En-HPQ9J5KCJftAO7vQQIVUdRuvmtFn_Xd0i-Yqe7xcya9Ugm_8XD-z8fVeWclm0gSw1wlzwbnC8IHFnC1QDEM9PdQ$ 
>>
>> Here are the other montages if you need: https://urldefense.com/v3/__https://www.biosemi.com/headcap.htm__;!!Mih3wA!En-HPQ9J5KCJftAO7vQQIVUdRuvmtFn_Xd0i-Yqe7xcya9Ugm_8XD-z8fVeWclm0gSw1wlzwbnC8IHFnC1S1QhsHkg$ 
>>
>> Cedric Cannard
>>
>> Sent with Proton Mail secure email.
>>
>> ------- Original Message -------
>> On Monday, June 12th, 2023 at 9:42 PM, Soniya Usgaonkar via eeglablist <eeglablist at sccn.ucsd.edu> wrote:
>>
>>> Hello Sir.
>>> I am using compiled version of EEGTOOL for preprocessing my dataset of EEG
>>> signals.its reading and importing the dataset . When i have to read channel
>>> locations i am giving channel .txt file as an input i am getting following
>>> error
>>> readlocs(): 'txt' format assumed from file extension
>>> 3 channel with the same label found and imported
>>> Channel lookup: no location for
>>> A1,A2,A3,A4,A5,A6,A7,A8,A9,A10,A11,A12,A13,A14,A15,A16,A17,A18,A19,A20,A21,A22,A23,A24,A25,A26,A27,A28,A29,A30,A31,A32,B1,B2,B3,
>>> B4,B5,B6,B7,B8,B9,B10,B11,B12,B13,B14,B15,B16,B17,B18,B19,B20,B21,B22,B23,B24,B25,B26,B27,B28,B29,B30,B31,B32,EXG1,EXG2,EXG3,EXG4,EXG5,EXG6,EXG7,EXG8,GSR1,GSR2,Erg1,Erg2,Resp,Plet,TempRemoving
>>> 15 channel(s)...
>>> i am not able to find out why this error . Can you please help sir?
>>> Regards and Thanks
>>> Second Usgaonkar,
>>> Assistant Professor,
>>> Department Of Information Technology,
>>> Goa college Of Engineering,
>>> Farmagudi-Goa
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