[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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