Eye-tracking

Eye-tracking metrics are frequently used to study higher-order cognitive functions, allowing the analysis of involuntary eye movements to aid in the assessment of neurological and psychiatric diseases. Our group has actively investigated oculomotor behavior as a clinical and research tool in Parkinson’s disease, where eye movement abnormalities reflect underlying dysfunction in basal ganglia-frontal circuits, as well as in other neurological disorders including multiple sclerosis and chronic migraine. Eye-tracking measures such as saccadic latency, fixation stability, smooth pursuit accuracy, and pupillary responses have proven particularly valuable for characterizing cognitive and attentional impairments across these populations, and for tracking disease progression and treatment response longitudinally.

We have a Tobii Pro Fussion (250 Hz) eye-tracking device available, which allows us to simultaneously record eye movements and EEG during motor and cognitive paradigms, enabling the integration of oculomotor indices with cortical oscillatory dynamics within the same experimental session.