memory is not uniformly destroyed when brain tissue is removed or destroyed.
Karl Lashley trained rats, monkeys, and chimps to solve puzzles, then removed their motor cortex, cerebellum, and severed cross-connections in the cerebral cortex to no detriment of memory among his subjects
Formation of memory often activates the median temporal lobes, esp. the hippocampus, but removal of the hippocampus does not impact recall profoundly or predictably.
A man with 5% of the typical human brain tissue due to hydrocephalus has earned university degree with a demonstrated IQ of 126.
Rhythmic patterns or resonance across time of electrical signals throughout the brain are shown to map mental activity and recall more closely than synapse maps or circuits.
Awareness of sensation generally operates an a half-second delay. readiness-potential
Typically the decision to move a finger occurs 200 ms after awareness of the decision,
which tends to occur 300 ms after the motor cortex initiated the reactive movement.