[Eeglablist] Neuroscan .cnt files

[Stephen Politzer-Ahles]

Hi Kimberly,

I've also had issues opening .cnt files even smaller (~1 GB). Do you
definitely need to open the continuous data, or can you use the epoched
(.eeg) data? For most of my analysis I epoch the data in Neuroscan and then
import the epoched data into EEGLAB, and then usually don't get memory
issues.

I've also had luck using a different computer with 64-bit Windows 7 and 8
GB of RAM. And I've heard that Unix-based OSes are much better with memory
and MATLAB, although I haven't tried myself.

Best,
Steve

On Sun, Jan 20, 2013 at 3:28 PM, Kimberly Talboom <kwingert1009 at yahoo.com>wrote:

> Good afternoon,
>
>
> Our laboratory's .cnt files are 3.5 GB give or take a GB depending on the
> research paradigm, and I am having a really difficult time getting the
> files to open in EEGLAB. Neuroscan can open smaller files but has also had
> issues exporting large data files to EEGLAB.
>
> To attenuate the issues with RAM availability and file size, Neuroscan
> suggested that I:
>
>
> 1) Down-sample when I can
> 2) I guess there is a compiled version of EEGLAB (i.e., rather than
> interpreted code) that may help, but is not recommended?
>
>
> I can get the files to open, but it takes an hour, and then it takes
> another hour each time I press a button.
>
> I am running an i7 (laptop)/ i5 (desktop), both are 64 bit 4GB RAM. I have
> the 64 bit version of MATLAB.
>
>
> If anyone has had a similar problem and has found a way around it, I would
> appreciate the help.
>
>
>
> Thank you,
>
> Kimberly Talboom
>
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-- 
Stephen Politzer-Ahles
University of Kansas
Linguistics Department
http://people.ku.edu/~sjpa/
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