I am using Matlab and Cogent to present visual stimuli. Normally I use the Mex-File Plug-in for Fast MATLAB Port I/O Access (http://sunburst.usd.edu/~schieber/psyc770/IO32.html) in order to synchronize my EEG-recordings with the presentation of stimuli. The stimulation-PC is connected via the Cedrus adapter board to the acquisition-PC. However, no triggers appear in the BrainVision Recorder. Now I am wondering whether the adapter board/ BrainVision is not compatible with this method of triggers, or whether there could be other reasons why it does not work?
Any ideas which lead to a solution are much appreciated!