[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. The patients with early AD (n= 27) and D (n= 19) were compared with the healthy subject group (n= 30) on a standardised visuospatial learning test. The AD patients scored significantly lower than HS and D on NVM tasks, but there were no significant differences between AD and D on position recall. Furthermore, the AD group did not show faster forgetting rates on position recall or design recognition in comparison to HS and D groups. These results are interpreted in terms of neurocognitive processes that explain NVM impairment in AD and depression.
Contador-Castillo
Israel
I
Universidad de Salamanca, Spain.
Fernández-Calvo
Bernardino
B
Ramos Campos
Francisco
F
Cacho Gutiérrez
Laureano J
LJ
Rodríguez Pérez
Roberto
R
D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000523:psychology*; D003866:Depressive Disorder / Q000523:psychology*; D005260:Female; D006801:Humans; D007859:Learning Disabilities / Q000209:etiology / Q000503:physiopathology / Q000523:psychology; D008297:Male; D008569:Memory Disorders / Q000209:etiology* / Q000523:psychology; D011939:Mental Recall / Q000502:physiology; D009483:Neuropsychological Tests; D010364:Pattern Recognition, Visual / Q000502:physiology; D021641:Recognition, Psychology / Q000502:physiology*