Different storage and retrieval deficits in normal aging and mild cognitive impairment: a multinomial modeling analysis.
The authors compared patients with mild cognitive impairment with healthy older adults and young control participants in a free recall test in order to locate potential qualitative differences in normal and pathological memory decline. Analysis with an extended multitrial version of W. H. Batchelder and D. M. Riefer's (1980) pair-clustering model revealed globally decelerated learning and an additional retrieval deficit in patients with mild cognitive impairment but not in healthy older adults. Results thus suggest differences in memory decline between normal and pathological aging that may be useful for the detection of risk groups for dementia, and they illustrate the value of model-based disentangling of processes and of multitrial tests for early detection of dementia.
Department of Psychology, University of Bonn, Bonn, Germany. broeder@uni-bonn.de
Arndt
A
Bröder
Andrea
A
Herwig
Stefan
S
Teipel
Kristina
K
Fast
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003072:Cognition Disorders / Q000175:diagnosis* / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D008569:Memory Disorders / Q000175:diagnosis* / Q000523:psychology; D011939:Mental Recall; D008875:Middle Aged; D009483:Neuropsychological Tests; D010153:Paired-Associate Learning; D012016:Reference Values; D012153:Retention, Psychology; D012660:Semantics