Real-Time MRI Reveals Unique Insight into the Full Kinematics of Eye Movements.

ABSTRACT: Our eyes are constantly in motion and the various kinds of eye movements are closely linked to many aspects of human cognitive processing. Measuring all possible eye movements unobtrusively is not achievable with current methods. Video-based eye-trackers only measure rotational but not translational motion of the eye, require a calibration process relying on the participant's self-report of accurate fixation, and do not work if vision of the eyeball is blocked. Scleral search coils attach physical weight on the eyeball and also do not measure translation. Here, we describe a novel and fully automated method to use real-time magnetic resonance imaging (MRI) for eye tracking. We achieved a temporal resolution sufficient to measure eye rotations and translations as short as those that occur w

SUBMITTER: Kirchner J 

PROVIDER: S-EPMC8751851 | biostudies-literature | 2022 Jan-Feb

REPOSITORIES: biostudies-literature