frontotemporal dementia(redirected from Frontal variant frontotemporal dementia)
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n. Abbr. FTD
Any of several neurological disorders characterized by progressive changes in behavior, cognition, and language, caused by shrinkage of the frontal and temporal lobes of the brain and usually beginning in middle to late middle age.
frontotemporal dementiaNeurology A form of dementia that affects speech and personality, while stimulating visual perception; FD has been linked to chromosome 17. See FTDP-17, Prion disease.
A general term for any of four types of dementia: 1. frontotemporal lobar degeneration; 2. Pick’s disease; 3. primary progressive aphasia; or 4. semantic dementia. Symptoms include personality changes, apathy, compulsive or repetitive behavior, lack of social inhibition, and deterioration in language use.
See also: dementia