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Frontotemporal Disorders

This form of dementia is caused by a family of brain diseases known as frontotemporal lobar degeneration (FTLD). Scientists estimate that FTLD may cause up to 10 percent of all cases of dementia and may be about as common as Alzheimer’s among people younger than age 65.

Frontotemporal disorders can be grouped into three types, defined by the earliest symptoms physicians identify when they examine patients.

  • progressive behavior/personality decline—characterized by changes in personality, behavior, emotions, and judgment.
  • progressive language decline—marked by changes in language ability, including speaking, understanding, reading and writing.
  • progressive motor decline—characterized by various difficulties with physical movement, including shaking, difficulty walking, frequent falls and poor coordination.