cortical dementia
Pronunciation: KOR-ti-kal duh-MEN-shah
Dementia primarily affecting cerebral cortex functions like language, memory, and executive abilities.
Full Definition
A classification of dementia syndromes characterized by prominent involvement of higher cortical functions including language, praxis, memory formation, and complex cognitive abilities, while relatively sparing subcortical motor functions early in the disease course. Alzheimer's disease is the prototypical cortical dementia, featuring early episodic memory loss, language difficulties, and visuospatial impairments. This contrasts with subcortical dementias (such as Huntington's disease) that primarily affect attention, executive function, and motor control while initially preserving language and memory. The distinction helps guide diagnostic evaluation and treatment planning, though many dementias eventually affect both cortical and subcortical regions.
Usage
Usage note: Contrast with subcortical dementia; many conditions eventually affect both cortical and subcortical areas.
In Context
- "The neuropsychological profile suggested cortical dementia with prominent language and memory deficits." — Dementia workup report
- "Unlike subcortical dementias, this cortical dementia presentation showed early aphasia and apraxia." — Differential diagnosis note