Extract gaze position from the Pupil Centre Corneal Reflection

Gyildiz

Hi there! I'm currently using the VisualSystem HD (VSHD) display (you can check it out here: https://www.nordicneurolab.com/product/visualsystem-hd) for an fMRI study. VSHD captures Video-based Pupil Centre Corneal Reflection (PCCR) and when paired with eye tracking software, the integrated eye tracking cameras of the VSHD allow to study gaze position (x-y coordinate pupil position), pupil size, etc. NordicNeuro Lab is compatible with Arrington ViewPoint, but unfortunately, we don't have access to that system. Instead, we have Tobii and EyeLink systems available. I'm relatively new to eye-tracking research, so pardon me if this sounds like a basic question, but I'm curious if there's a way to utilize the EyeLink or Tobii eye trackers in combination with PyGaze to extract information from the Video-based Pupil Centre Corneal Reflection recordings. Any insights or guidance on this would be greatly appreciated!