Abstract
Eye
movements are closely linked to encoding and retrieval processes, with
changes in viewing behavior reflecting age- and pathology-related memory
decline. In the current study, we leveraged this relationship to
explore possible gaze-based indicators of memory function. Across two
task-free viewing experiments, we investigated changes in naturalistic
viewing behavior across five participant groups spanning a broad
spectrum of memory function, from healthy young adults to amnesic cases.
We show that memory decline is associated with an underlying reduction
in explorative, adaptive, and differentiated visual sampling of the
environment. Our results provide compelling evidence that naturalistic
gaze patterns can serve as a sensitive marker of cognitive decline.
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