In a manner relating to the cortex; concerning or affecting the outer layer of an organ or structure, especially the brain.
From cortex (Latin for bark or rind) plus the adverbial suffix '-ally.' The word refers to the cortex, the outer brain layer discovered and named during the development of neuroscience in the 18th-19th centuries.
Neuroscientists use 'cortically' to discuss brain functions that happen specifically in the cerebral cortex—basically the brain's outer 'thinking' layer—which is where most of your consciousness actually happens.
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