[Eeglablist] Importing *.CNT and *.EEG files into eeglab - scalingissues ?

[Hamish INNES-BROWN]

Have you got the 32-bit option ticked in the import box? 


Hamish Innes-Brown
Music & Pitch Project
Bionic Ear Institute
t: +61 3 9667 7529
f: +61 3 9667 7518
e: hinnes-brown at bionicear.org
-----Original Message-----
From: eeglablist-bounces at sccn.ucsd.edu
[mailto:eeglablist-bounces at sccn.ucsd.edu] On Behalf Of Deirdre von
Pechmann
Sent: Friday, 20 November 2009 7:15 AM
To: eeglablist at sccn.ucsd.edu
Subject: [Eeglablist] Importing *.CNT and *.EEG files into eeglab -
scalingissues ?

Hi all,
 
we have been trying to do some analysis on 64-channel SynAmp2 Neuroscan
auditory oddball data in EEGLAB. First we tried to import the .CNT files
and it looked like everything was working ok, but we discovered that the
scaling was off because when we tried to filter & artrej the data would
go missing. For e.g we tried "channel scroll" and there was no data to
view.
 
We tried to import the *.EEG files instead and these epoched files
looked different than they did in the Neuroscan EDIT software. We find
that the latencies and amplitudes of the peaks are different than when
the same data is averaged in EDIT.
 
Has anyone encountered a similar problem or are we doing something
wrong? Any help would be great,
 
thanks a lot    
 
Deirdre
 
 
 
************************************************************** 
 
Deirdre Foxe von Pechmann
Electrophysiology Lab Manager
Olin Neuropsychiatry Research Center
Whitehall Building
200 Retreat Ave.
Hartford, CT 06106
Tel: (860) 545 7798
Fax: (860) 545 7797
email: dvonpechman at harthosp.org
www.nrc-iol.org <http://www.nrc-iol.org/>