We utilize an EyeLink 1000 eye tracker suspended from the ceiling of the room to record eye movement and blinks during experiments. Real-time binocular eye-movement data are processed, recorded, and returned to external devices via an ethernet link and/or analog voltage at up to 2000 Hz. An EDF file is generated that provides:
•raw eye position
However, eye-movement and blink data are also recorded directly on three dedicated trigger channels of the MEG data that is collected.