Search found 10 matches
- Sat Feb 10, 2007 12:14 am
- Forum: BioSemi Hardware
- Topic: Biosemi and TMS
- Replies: 1
- Views: 6222
Re: Biosemi and TMS
I've only just started planning a combined EEG & rTMS experiment, and so far I am quite pleased with how well the Biosemi system works with TMS. My observations so far are that the EEG recovers from the TMS pulse very fast, I'm not going to say exactly, but I am pleased with what I can do so far. I ...
- Mon Dec 04, 2006 6:52 pm
- Forum: EEG data analysis
- Topic: Laplacian
- Replies: 0
- Views: 5516
Laplacian
Hello, I am using the 32-channel version of the electrode cap. I need to implement a Laplacian reference and I wanted to check-in regarding the appropriate weights to assign neighboring reference electrodes. Is it safe to assume that the locations on the cap conform closely enough to 10-10 or 10-20 ...
- Fri Aug 26, 2005 12:55 am
- Forum: BioSemi Hardware
- Topic: GSR electrodes and units display
- Replies: 7
- Views: 20563
[quote="Coen"]From Ohm to uMho (uSiemens): take reciprocal (1/x), and multiply with one million (1,000,000). [/quote] Hi Coen, Based on this, and based on literature that suggests the threshold minimum for a GSR response is >0.02 UMho, we are getting excessively high responses, on the order of 1000-...
- Fri Aug 26, 2005 12:38 am
- Forum: BioSemi all other topics
- Topic: Publications of GSR using Biosemi
- Replies: 0
- Views: 6712
Publications of GSR using Biosemi
Is anyone aware of any publications reporting GSR data recorded with Biosemi equipment?
Best regards,
Dan Zajdel
Best regards,
Dan Zajdel
- Thu Jul 28, 2005 8:48 pm
- Forum: BioSemi Hardware
- Topic: Trigger Port Timing
- Replies: 3
- Views: 11257
Trigger Port Timing
We are having a little trouble with the reliability of triggering Biosemi with the parallel port on a PC. Does the Biosemi trigger hardware latch the trigger port signals synchronously with the acquisition hardware? Is there any chance Biosemi could be sampling the trigger port while the external tr...
- Tue Jul 26, 2005 6:34 pm
- Forum: BioSemi Software (ActiView executable)
- Topic: TCP/IP Server
- Replies: 3
- Views: 12589
- Thu Jul 21, 2005 10:06 pm
- Forum: BioSemi Software (ActiView executable)
- Topic: TCP/IP Server
- Replies: 3
- Views: 12589
TCP/IP Server
How is the TCP/IP server feature in the latest version of actiview (32) supposed to work? I'd like to try out the feature but I can't seem to get it to work.
Dan Zajdel
Neurology
Oregon Health & Science University
Dan Zajdel
Neurology
Oregon Health & Science University
- Wed Aug 04, 2004 11:05 pm
- Forum: BioSemi all other topics
- Topic: Implementing Non Cephalic Reference
- Replies: 2
- Views: 9240
Derived NC reference in BA
Yes, I've tried this procedure as well. I have found so far that the proportion of anterior electrode to posterior electrode that best minimizes the ECG artifact may differ from subject to subject or even from recording to recording. It is a bit of a headache right now in that I am experimenting wit...
- Wed Aug 04, 2004 10:56 pm
- Forum: BioSemi Hardware
- Topic: Cap Cleaning and residual gel
- Replies: 1
- Views: 7544
Cap Cleaning and residual gel
We've begun to notice that after our recordings there seems to be much residual Signa gel remaining in the electrode pedestals after a good aggitated cleaning with warm water and Hibiclens (a surgical scrub). I had assumed the gel would be water soluble and clean readily with water and detergent, bu...
- Wed May 19, 2004 9:04 pm
- Forum: BioSemi all other topics
- Topic: Implementing Non Cephalic Reference
- Replies: 2
- Views: 9240
Implementing Non Cephalic Reference
Is anyone out there using a non cephalic reference for EEG recordings using Biosemi and Brain Vision?
Many thanks for any comments.
Dan Zajdel
Oregon Health & Science University
Portland OR, USA
Many thanks for any comments.
Dan Zajdel
Oregon Health & Science University
Portland OR, USA