I have records of EEG from 4 channels. It has the output value of the voltages value. I am trying to process the data in ERPLAB. I am going through the videos tutorial of ERPLAB. I can import the data and look how the plots seems like. But when I reach the part to create an EVENTLIST, there seems to be a problem 'No event codes'.
I have visual stimulus. It shows standard and rare stimuli without any user response. I know the rare stimuli counts as event codes. But how do I add event codes ? How do I proceed from here ?