Search found 4 matches

by davewfrank
Mon Oct 17, 2011 9:41 pm
Forum: EEG data analysis
Topic: EMEGS 64 channel config file
Replies: 0
Views: 6634

EMEGS 64 channel config file

Hello,

I was wondering if anyone had a configuration file for EMEGS for use with 64 channel BioSemi (BDF) data. The config file i'm currently running looks almost right, but the 64th (last) data channel looks wrong when plotting the time series data.

Any help would be appreciated.

Thanks,

Dave
by davewfrank
Tue Jul 26, 2011 4:39 pm
Forum: EEG data analysis
Topic: Skin Conductance Analysis
Replies: 1
Views: 6566

Skin Conductance Analysis

Hello, I'm having some trouble with the skin conductance (gsr 1&2) channels. When I read the BDFs through EEGLAB and export the raw data, the gsr channels don't look like real skin conductance responses. Rather, plotting the epoched data, they look like sine waves. I was wondering what the typical p...
by davewfrank
Mon Feb 14, 2011 5:28 pm
Forum: EEG data analysis
Topic: Trigger issues in actiview
Replies: 1
Views: 5737

Trigger issues in actiview

I'm using psychtoolbox to send triggers at stimulus onset during my erp task. During data collection the trigger numbers come up at the appropriate times down below the scrolling waveforms. However, sometimes multiple trigger numbers get displayed (overlap each other). When this happens, EEGLAB reco...
by davewfrank
Mon Jan 31, 2011 7:30 pm
Forum: BioSemi Software (ActiView executable)
Topic: Event info stored in BDF format
Replies: 1
Views: 3762

Event info stored in BDF format

When I import the BDF files into EEGLAB it gives me the wrong number of events. I should have 21 events before I epoch the data, and 20 events after I epoch. The problem lies in that I get the wrong number of events, and they are always different. The strange thing is that when I put the electrodes ...