Mice move their eyes voluntarily to look at objects, debunking the long-held belief that their eye movements are purely reflexive.
April 1, 2026
Original Paper
Eye-head coordination during goal-directed orienting in mice
bioRxiv · 10.64898/2026.03.30.715285
The Takeaway
For decades, it was assumed that mice only used their eyes to stabilize their vision while their heads moved. This study shows they actually perform active, targeted eye-flicks called saccades just like humans, suggesting that the brain's mechanism for 'looking' at things is much older and more conserved than previously thought.
From the abstract
In afoveate species such as mice, it is accepted that gaze is typically redirected by head movements with a saccade-and-fixate strategy, while the eyes primarily stabilize vision within a limited oculomotor range. This view suggests that the accompanying eye movements are primarily reflexive, driven by mechanisms like the vestibulo-ocular reflex (VOR). However, emerging evidence challenges this assumption, suggesting that eye movements during active head motion may not be purely reflex-driven. H