How can timing markers be entered into the data stream?
Timing markers can be entered into the data stream in several ways:
1. Using EmotivPRO software, you can use a real or virtual COM port to enter timing markers directly. These can come from the same program which can be used to deliver stimuli. You can use a USB link if your stimulus computer is different from the data collection computer.
2. You can write a program which delivers your stimuli and the same program can send markers to the Cortex service which runs the headset data collection, using API calls. You will need access to the EEG SDK which can be made available if you have an EmotivPRO license.