Abstract:
Administering the Neuropsychiatric Inventory (NPI), we examined
the behavioral symptoms of 22 patients with progressive supranuclear
palsy (PSP), 50 patients with Alzheimer's disease, and 40 controls. PSP
patients exhibited apathy (91%), disinhibition (36%), dysphoria (18%)
and anxiety (18%), but rarely (< 9%) irritability, abnormal motor
behaviors, or agitation. Apathy in PSP was significantly associated with
executive dysfunction. The presence of high apathy and low agitation and
anxiety scale scores correctly identified the PSP patients 85% of the
time. Evaluating the behavioral abnormalities of patients with
neurodegenerative disorders will aid diagnosis and facilitate
management