corticonuclear fiber

any of a group of fibers forming part of the pyramidal tract that extend from the cerebral cortex to nuclei in the midbrain, pons, and medulla oblongata. Also called corticobulbar fiber.

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Psychology term of the day

November 27th 2024

cognitive impairment

any impairment in perceptual, learning, memory, linguistic, or thinking abilities. Multiple significant cognitive impairments in memory plus one or more other cognitive defects are characteristic of dementia. See also mild cognitive impairment.