Search found 6 matches

by MalloryHall
Thu May 21, 2009 3:45 pm
Forum: EEG data analysis
Topic: Error 6004: File Size in Header
Replies: 1
Views: 6090

Error 6004: File Size in Header

I've received the following error a couple of times: Error 6004 occurred at File Size in Header does not match Actual File Size. Possible reason(s): Reader will use actual File Size, Please Proceed. When I open the file in bdf reader or Besa the data looks very unusual. I see mostly solid sections o...
by MalloryHall
Wed Nov 14, 2007 3:43 pm
Forum: EEG data analysis
Topic: bipolar channels in EEGlab/Matlab
Replies: 1
Views: 7145

bipolar channels in EEGlab/Matlab

Hi,

I was wondering if anyone happens to know of a good way to reference our EXG channels to one another to create bipolar channels in EEGlab/Matlab?

Thanks!
-Mallory Hall
by MalloryHall
Mon Oct 01, 2007 3:16 pm
Forum: EEG data analysis
Topic: Mark I or Mark II?
Replies: 1
Views: 7188

Mark I or Mark II?

hi, I was wondering if there is a way to tell by looking at a biosemi system if it is the Mark I version or the Mark II version. I was reading that one version uses a different Matlab function that the other to import the data. Our system was purchased in Nov 05 which I think is right during the swi...
by MalloryHall
Wed May 09, 2007 10:05 pm
Forum: BioSemi Hardware
Topic: disinfectant Poll
Replies: 0
Views: 5278

disinfectant Poll

Hi,

We were using EcoTru disinfectant on our electrodes after each session, but that product is no longer on the market apparently. I was wondering what disinfectants other labs use and how they like them, or if you use any at all.

thanks!
Mallory Hall
by MalloryHall
Tue Oct 31, 2006 8:08 pm
Forum: BioSemi Software (ActiView executable)
Topic: Additional Trigger Question
Replies: 6
Views: 12412

Additional Trigger Question

Is there a way to send triggers to be incorporated into the .bdf file by using something like function keys? We were looking into a way to document closed eyes vs open eyes for resting EEG, among other things. We were also wondering if there is a way if it would work while tasks are sending triggers...
by MalloryHall
Tue Sep 19, 2006 7:37 pm
Forum: BioSemi Hardware
Topic: noisy signals
Replies: 0
Views: 4954

noisy signals

I was wondering if anyone had any suggestions on how to improve noisy signals other then adding more gel. We've been consistently getting 2-3 noisy signals that are not improving when more gel is added to the sites. They are not necessarily the same site either. Or any thoughts on why this might hap...