[Eeglablist] Please: need help with EEGLAB

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Tue Sep 11 18:49:43 PDT 2012


Dear Nahla,

As a part of proprocessing, could you remove the channel from GUI?

Makoto

2012/9/11 Ms Nahla Lutfi A Faizo <nahla.faizo at uqconnect.edu.au>:
> Hi Makoto
>
> Channel 31 is the POz. The ECG channel is number 32.
> When I looked at the channel info for the ECG, all cells are clear. There is no information about this channel except its number (32).
>
> So, I guess the problem that when the processing reaches the ECG channel, which is ofcourse not similar the other EEG channels, it gives the error.
>
> So, how to fix it?
>
> Cheers
> Nahla
>
> ________________________________________
> From: Makoto Miyakoshi [mmiyakoshi at ucsd.edu]
> Sent: Wednesday, 12 September 2012 11:11 AM
> To: Ms Nahla Lutfi A Faizo
> Cc: EEGLAB List
> Subject: Re: Please: need help with EEGLAB
>
> Dear Nahla,
>
>> I've checked the bug list and I found one (819) that have the same error but I am not sure if is due to the same problem that I have.
>
> Very good.
> What is your channel 31? EOG or ECG? Check if Ch31 has the same
> structure as other EEG channels do.
>
> Makoto
>
> 2012/9/11 Ms Nahla Lutfi A Faizo <nahla.faizo at uqconnect.edu.au>:
>> Dear Makoto
>>
>> Thank you for your promp responses.
>> You are right, I checked the data and it looks fine, its about the scaling as you have said.
>>
>> Now, I've done the fastr processing to remove gradient artifacts, the process started fine, until it reached electrode 31 (which took about 3 hours), then a message error came up "matrix dimensions must agree".
>>
>> I've checked the bug list and I found one (819) that have the same error but I am not sure if is due to the same problem that I have.
>> How can I deal with this please?
>> I am using the latest version of eeglab 11.0.3.1b.
>>
>> Cheers
>> Nahla
>> ________________________________________
>> From: Makoto Miyakoshi [mmiyakoshi at ucsd.edu]
>> Sent: Tuesday, 11 September 2012 1:37 AM
>> To: cvandermaas at hotmail.com
>> Cc: Ms Nahla Lutfi A Faizo
>> Subject: Fwd: Please: need help with EEGLAB
>>
>> Dear Christian,
>>
>> Thank you for your offer. I told him that I don't see any problem in
>> his data. What do you think?
>>
>> Makoto
>>
>>
>> ---------- Forwarded message ----------
>> From: Ms Nahla Lutfi A Faizo <nahla.faizo at uqconnect.edu.au>
>> Date: 2012/9/6
>> Subject: RE: Please: need help with EEGLAB
>> To: "mmiyakoshi at ucsd.edu" <mmiyakoshi at ucsd.edu>
>>
>>
>> Dear Makoto,
>>
>> I downloaded the latest version of eeglab which is eeglab11_0_3_1b.
>> When I imported the EEG data that I acquired during fMRI, it looked
>> weird (attached figure).
>>
>> What could be the problem now? Bear in mind I did import EEG data from
>> an earlier experiment and il looked different but more
>> realistic(attached figure).
>>
>> Can you help me with this please.
>>
>> Cheers
>> Nahla
>>
>> ________________________________________
>> From: Makoto Miyakoshi [mmiyakoshi at ucsd.edu]
>> Sent: Friday, 7 September 2012 8:27 AM
>> To: Ms Nahla Lutfi A Faizo
>> Cc: eeglab at sccn.ucsd.edu
>> Subject: Re: Please: need help with EEGLAB
>>
>> Dear Nahla,
>>
>> Would you please make sure that you are using the latest version of
>> EEGLAB? Which version are you using right now?
>>
>> Makoto
>>
>>
>> Dear Sir/Madam,
>>
>> I am doing EEG-fMRI for my research project.
>> Now, after I imported the data using FILE-IO toolbox on eeglab, as
>> described in the tutorial on EEG-fMRI data, i went to tools-->FMRIB
>> tools-->FASTR to remove the gradient artifacts. I've used the default
>> numbers that the tutorial suggested which were: low pass filter 70,
>> interpolation 10, averaging window length 30, artefact timing event
>> slice, non-EEG channels 32 (which is the EEG), but it keeps giving me
>> an error message that subscipt indices must either be real positive
>> integers or logicals.
>>
>> What does this mean and do you know how to deal with this problem?
>>
>>
>> Regards
>> Nahla Faizo
>> PhD student, Centre for Adbanced Imaging
>> The University of Queensland, Australia
>>
>>
>> --
>> Makoto Miyakoshi
>> JSPS Postdoctral Fellow for Research Abroad
>> Swartz Center for Computational Neuroscience
>> Institute for Neural Computation, University of California San Diego
>
>
>
> --
> Makoto Miyakoshi
> JSPS Postdoctral Fellow for Research Abroad
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego



-- 
Makoto Miyakoshi
JSPS Postdoctral Fellow for Research Abroad
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego



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