[Mne_analysis] reading eeg part of eeg-fMRI data

Sammi Chekroud sammi.r.chekroud at gmail.com
Tue Aug 29 04:58:49 EDT 2017
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hey,

thanks for the reply. I'm using the dev, but I haven't pulled in a while.
I'll give this a go and see whats going on

Cheers,
Sammi

On 29 August 2017 at 09:51, Jaakko Leppakangas <jaeilepp at gmail.com> wrote:

> Hi Sammi,
>
> which version of MNE are you using? Looks like your code has a weird typo
> that doesn't exist in the code base (https://github.com/mne-tools/
> mne-python/blob/maint/0.14/mne/io/cnt/cnt.py#L231).
>
> Maybe updating the version will fix it.
>
> -Jaakko
>
> On Tue, Aug 29, 2017 at 11:35 AM, Sammi Chekroud <
> sammi.r.chekroud at gmail.com> wrote:
>
>> Hi all,
>>
>> I'm trying to read in some EEG data collected from an eeg-fMRI task and
>> having a couple of problems.
>>
>> Firstly, we're acquiring data using Curry 8. I've converted the native
>> .cdt data into .cnt using their software, and it outputs a file_path.cnt
>> and file_path.cnt.dpa file together. Events are contained in the .cnt file
>> though as you can read this data into EEGlab without a problem and it
>> detects triggers.
>>
>> I'm trying to read it into MNE and I get the following error:
>>
>> File "/home/sammirc/mne-python/mne/io/cnt/cnt.py", line 231 in
>> _get_cnt_info
>> fid.seet(event_offset)
>>
>> IOError: [Errno 22] Invalid Argument
>>
>> not sure what this means? Is it not detecting events in the data, so
>> getting an error? The events are definitely there as two other people also
>> checking this data have been able to read it into matlab.
>>
>> I wondered if it could be because of the montage in use (easycap-M1) when
>> it could be inaccurate. I got the montage file (both .mnt and .xml) and
>> tried to create a montage ( mne.channels.read_montage ) but this also
>> doesnt work as neither format is supported...
>>
>> Any help on this would be pretty great as we're trying to check data
>> quality of a new system.
>>
>> Cheers,
>> Sammi
>>
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