Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Frontotemporal dementia ?
    ### Response:
    Frontotemporal dementia describes a group of conditions associated with shrinking of the frontal and temporal anterior lobes of the brain. Symptoms include either variable changes in behavior (e.g., impulsive, bored, listless, lack of social contact, lack of empathy, distractibility, blunted emotions, compulsive behavior, decreased energy and motivation) or problems with language (e.
    