[Eeglablist] Issues importing 32 bit neuroscan CNT files recorded in scan 4.5

[Arnaud Delorme]

Dear Leif,

it would be great if you could upload both the continuous CNT and the epoch EEG Neuroscan file to our bugzilla database. Also detail each single step to generate the EEG file from the CNT file in Neuroscan. The processing should be identical in EEGLAB and Neuroscan and if it is not, we will try to fix it (note that a bug in Neuroscan cannot be excluded either). 

http://sccn.ucsd.edu/eeglab/bugzilla
(you will be required to create an account but this is straightforward).

Thanks,

Arno

On Aug 31, 2011, at 3:00 AM, Leif Oines wrote:

> Hello,
> 
> I'm wondering if anyone else seems to have issues importing 32 bit neuroscan CNT files into eeglab (I've made sure that the 32 bit option is flagged when i go to read in the files). The data were recorded with a synamp2 64 channel amp. When I view the data with the eeglab plotter data from several channels do not appear at any scale, and the latencies of the channels that do display seem off in comparison to what things look like in neuroscan 4.5. There was a similar post made around 2009 but no apparent resolution. When I open epoched neuroscan EEG files, however, things seem fine. I suppose I could do all my preprocessing in neuroscan and then read in my EEG files, but I'm trying to move my entire pipeline into eeglab. Any help or even guesses would be wonderful. 
> 
> Thanks,
> Leif Oines 
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