electrocorticography

noun

elec·​tro·​cor·​ti·​cog·​ra·​phy -ˌkȯrt-i-ˈkäg-rə-fē 

plural electrocorticographies

: the process of recording electrical activity in the brain by placing electrodes in direct contact with the cerebral cortex

electrocorticographic

-kə-ˈgraf-ik 

adjective

electrocorticographically

-i-k(ə-)lē 

adverb