Topic: neurosurgical patients

Scholars have long theorized a role for reactivation and rehearsal in maintaining items in memory. Recent evidence suggests that reactivation during awake rest or sleep predicts subsequent recognition and cued recall performance. In a free recall task however, the relationship between covert reinstatement and recall may be more complex because the memory cues must be self-generated and retrieval depends strongly on what has previously been retrieved. Retrieved context theories suggest that covert retrievals during a delay interval should specifically predict the initiation of recall. To test t

Neurons in the brain have tight anatomical connections through dendritic arborizations that integrate diverse inputs and axons that project outputs to multiple, distributed areas. How do individual neurons or regions reorganize their activity so that they selectively process particular inputs and direct their outputs to match the timescale of behaviors? In this work, we show that large-scale cortical “traveling waves” underlie this rapid and selective reorganization, by propagating in specific directions, thus flexibly and efficiently communicating between the given brain regions. We designed