Search found 4 matches

by juhint
Tue Apr 07, 2009 3:04 pm
Forum: BioSemi Hardware
Topic: Strange looking drifts through all channels
Replies: 5
Views: 10251

thanks
by juhint
Tue Apr 07, 2009 1:09 pm
Forum: BioSemi Hardware
Topic: Strange looking drifts through all channels
Replies: 5
Views: 10251

Dear Coen, thanks for your answer - I do have a few more questions though: If it was sweating, wouldn't those artefacts happen at a more regular basis? We sometimes have artefacts at the beginning of a recording and then nothing again for more than 10 minutes - wouldn't our subject keep on sweating ...
by juhint
Tue Apr 07, 2009 7:34 am
Forum: BioSemi Hardware
Topic: Strange looking drifts through all channels
Replies: 5
Views: 10251

I have uploaded a small data-file showing these drifts to the media center of my e-mail provider. The link is: http://www.gmx.de/mc/wwFBVLvSE9gu12eTl6XCufrsLhbr0W Instructions in English: click on gmx media center starten a folder opens where you can see one data file named probe.bdf put a check mar...
by juhint
Mon Apr 06, 2009 6:04 pm
Forum: BioSemi Hardware
Topic: Strange looking drifts through all channels
Replies: 5
Views: 10251

Strange looking drifts through all channels

My collegue and I just started recording eegs for our thesis and have run into some problems with Biosemi. The first few recordings went very well, but in all but one of the last five sessions we had some major problems with odd-looking drifts. We have come to our wits end. We have low off-sets for ...