Psychopy version: 2021.1.4-win64 system
Windows system: win10
Hello, everyone, I am going to collect SEEG data using a 256-Intracranial EEG system (Nihon Kohden system). And my experimental tasks was already designed in PsychoPy coder interface. Communication between the Intracranial EEG system and Psychopy is via a 25-pin parallel port cable.
My problem is that the trigger signal used to mark the experimental process cannot be displayed on the intracranial EEG.But the puzzling thing is that my experimental program runs normally without errors.
Moreover, My experimental procedures runs very well on a common EEG system such as Neuroscan, and trigger signals can also be seen on the EEG.The computer operating system used to run the procedures is Win7.
In addition, I know that common EEG systems such as neuroscan and the intracranial EEG system I use both send and receive trigger signals through a 25-pin parallel cable, and the difference in principle is as follows.
After receiving the trigger signal, the neuroscan system presents the signal with the marker number written in the experimental program, but the intracranial EEG system generates a pulse signal for presentation after receiving the signal, and the pulse is shown in the figure as follows
Very much looking forward to getting everyone’s ideas and suggestions, thank you sincerely!
Best wishes to all.