Insert data marker into questionnaire (case 5183)

[paulineddra]

Hello,

I have yet to find a satisfactory answer, but how and where do I request MediaLab to send a data marker when running an EEG experiment? I am composing my experimental protocol as a "questionnaire", and would like the onset of a stimulus (ie. music or sound clip) to be marked in the EEG data being recorded (using Emotiv TestBench and Eltima Virtual Serial Port to connect). Additionlly, how do I label each data marker so that we can identify the stimuli in the EEG output? For example, can the onset of video 1 have a different label from video 2, 3 and 4? Can someone please help??? Thank you!