[Eeglablist] import BDF file data one channel at a time
Jeff Johnson
jeffreyj at uci.edu
Fri Mar 12 08:45:58 PST 2004
There are scripts on the Biosemi website that allow you to read a .BDF into
a MATLAB array. I think sload.m is the one you want, and it'll let you
select any number of channels. Then you can just read the array into EEGLAB.
Jeff
At 04:30 PM 3/11/2004 -0800, Ryan Canolty wrote:
>Hello all,
>
>In my greed to gather data, I generated a massive (~2 gigabytes) .bdf file
>(Biosemi Data Format) which is causing me difficulty. I recorded 72
>channels at 2048 Hz sampling rate for 80 min or so. While I know now that
>this is not a good idea, I'd still like to use the data. The only program
>I can get to open it is EEGLAB, and even then only if I select chunks of
>100 sec or so, otherwise I get an out of memory error.
>
>My question: is anyone aware of a way to read in one or two channels
>(ideally an EEG channel and the event channel) at a time into EEGLAB,
>rather than reading all channels at once? That way I could look at large
>segments of the continuous EEG separately for each channel rather than
>short snippets of all 72 channels.
>
>Thanks,
>Ryan
>
>
>
>*******************************************
>Ryan T. Canolty
>Helen Wills Neuroscience Institute
>University of California, Berkeley
>rcanolty at berkeley.edu
>*******************************************
Jeffrey D. Johnson
Center for the Neurobiology of Learning and Memory
Department of Neurobiology and Behavior
University of California, Irvine
Irvine, CA 92697-3800
Phone: 949-824-8861
Fax: 949-824-4807
Email: jeffreyj at uci.edu
http://fnim.bio.uci.edu
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