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This research explores how eyelid closure affects vestibulo-ocular reflex responses, highlighting brain adaptability in movement control.

November 20, 2025Communications BiologyOpen Access

Rapid switching of vestibulo-motor pathways through voluntary eyelid closure in primates

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Experiments demonstrate adaptive modulation of vestibulo-ocular reflex in primates through eyelid closure, suggesting efficient movement control.

This research explores how eyelid closure affects vestibulo-ocular reflex responses, highlighting brain adaptability in movement control.
Measured human VOR responses using scleral search coils during voluntary eye closure.
Conducted parallel experiments in monkeys to confirm findings and rule out mechanical factors.
Examined neural mechanism linking eyelid control and vestibular processing.
Found a rapid 36–90% reduction in VOR across movement directions during eyelid closure in humans.
Confirmed similar VOR suppression in monkey subjects, indicating conserved neural strategies.
Noted that attempts to open restrained eyelids increased VOR gains, suggesting motor commands influence vestibular processing.

Raat et al. (2025) studied this question.

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Experiments demonstrate adaptive modulation of vestibulo-ocular reflex in primates through eyelid closure, suggesting efficient movement control.