Search found 4 matches

by bmorgan
Fri Aug 07, 2009 4:02 pm
Forum: BioSemi Software (ActiView executable)
Topic: how to remove duplicate bdf channels?
Replies: 0
Views: 7753

how to remove duplicate bdf channels?

Hi, anyone know a way to remove channels that were inadverdently duplicated during recording from a bdf file? I can remove them in Matlab but don't know how to correct the hdr info so that they can be read again, either as .mat files in Matlab, or as .bdf files in eeglab or another program such as B...
by bmorgan
Wed Dec 10, 2008 9:18 am
Forum: BioSemi all other topics
Topic: monitor interference
Replies: 0
Views: 7953

monitor interference

Hi again, I'm experiencing 50Hz interference when subjects sit in front of a monitor screen, CRT less so than LCD but both problematic. Increasing the distance between subject and screen helps a lot but the critical distance is just a bit too far away. Does anyone else experience this problem? Barak
by bmorgan
Wed Dec 10, 2008 9:08 am
Forum: BioSemi Hardware
Topic: MRI compatibility
Replies: 1
Views: 6800

MRI compatibility

Hi, Is there any safety reason (to the equipment as well as the subject) not to try use Biosemi in an MRI environment? The idea is not to do simultaneous EEG-fMRI acquisition but to alternate them (i.e. only collect EEG while the scanner is off). Some MRI compatible systems (eg. neuroscan) keep the ...
by bmorgan
Mon Mar 10, 2008 1:28 pm
Forum: BioSemi Hardware
Topic: infant caps
Replies: 0
Views: 6758

infant caps

Hi, has anyone used or does anyone know someone who has used biosemi's infant caps, especially the smaller sizes? I would very much like to hear how well they work/are tolerated and what suggestions there may be to use them in very small/premature neonates.

Barak Morgan