The Intriguing Connection Between Eye Movement and Decision-Making in the Brain
Recent research from the University of Chicago has unveiled a fascinating link between eye movements and high-level cognitive functions, challenging long-held beliefs about how our brains process visual information. This groundbreaking study, led by David Freedman, a professor of neurobiology, suggests that the superior colliculus, a midbrain structure traditionally viewed as a simple switchboard for eye movements, plays a crucial role in decision-making processes.
The superior colliculus, an ancient part of the brain that appears in various species from fish to mammals, sits above the brainstem and is known for its ability to transform visual stimuli into rapid eye and head movements. For decades, scientists have categorized the colliculus as a mere facilitator of reflexive gaze shifts, relegating more complex cognitive functions to the cerebral cortex. However, emerging evidence indicates that this division may be overly simplistic.