Search found 3 matches
- Mon Nov 11, 2019 5:16 pm
- Forum: BioSemi Hardware
- Topic: Photosensor data
- Replies: 1
- Views: 10471
Photosensor data
Hi, I am using the BioSemi photosensor for the first time and am not sure if we are using it correctly. I have attached one example of data output from the sensor where I have tested it with black/white/gray screen colour changes every 2s. We seem to have very noisy data. The photosensor is attached...
- Tue Sep 17, 2019 10:40 am
- Forum: BioSemi Software (ActiView executable)
- Topic: different trigger codes in bdf
- Replies: 5
- Views: 21254
Re: different trigger codes in bdf
Hi, Thank you very much for your response. I am still unsure as to why we have correct trigger codes when I use the decimal settings in ActiView, but then different ones in the .bdf file? Also, apologies for this, but how exactly do I split the 16 bit trigger word in two 8 bit bytes? Kind regards, C...
- Mon Sep 16, 2019 5:35 pm
- Forum: BioSemi Software (ActiView executable)
- Topic: different trigger codes in bdf
- Replies: 5
- Views: 21254
different trigger codes in bdf
Hi, I am piloting some EEG tasks (Matlab scripts) and am finding that the trigger codes saved to the .bdf files are different to those I see in the actiview window when collecting data. For example when running an MMN paradigm, the codes are in the 200's but when I open the .bdf file in eeglab the t...