[Non-verbal memory impairment in Alzheimer-type dementia: Forgetting or acquisition?].

Non-verbal memory impairment in Alzheimer-type dementia: Forgetting or acquisition?. The research aims to compare patients diagnosed with early Alzheimer's disease (AD) and unipolar major depression (D) with a healthy control group (HS) on diverse nonverbal memory tasks (NVM), recall of position, and recognition of abstracts designs. All participants completed a global protocol for diagnosis of dementia.