Definition of "subcortical" [subcortical]

• Of or pertaining to the subcortex, the portion of the brain located below the cerebral cortex (adjective)

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• "Most of them are located below the cerebral cortex and are known as subcortical."
• "The caudate nucleus is part of the telencephalon (forebrain), but is inside (underneath) of the cerebral cortex, so it is called a subcortical nucleus."
• "However, laboratory studies have not been able to unequivocally determine how the very basic information-processing "subcortical" regions of the brain function in processing risk and reward."