A woman turned to a doctor with complaints that her husband, 47-year-old, has a behavior changes about 5 years ago. He became irritable, anxious, began to make erratic, uncontrolable movements and during the last year ecame aggresive, incoordination movements ad mke a grimace. During the examination: absent abstract thinking, moderate decrease in connitive functionns, decreased muscle tone, ataxia,oculoomotor apraxia re observed. An MRII examination of the brain revealed atrophy of the corteex of the frontaa lobes and the caudate nucleus. Specify the probbable diagnosis.