Intraoperative 40 Hz Visual Light Flicker Attenuates Anesthesia/Surgery‐Induced Cognitive Impairments in Elderly Mice With Enhanced Cortical‐Hippocampal Coherence

Our results suggest that 40 Hz flicker mitigates anesthesia/surgery-induced cognitive deficits, potentially through modulating gamma coherence between the visual cortex and hippocampus. These findings provide insights into PND prevention and the neural mechanisms underlying 40 Hz-induced cognitive benefits.