Dissociation between two forms of conceptual priming in Alzheimer's disease.
Patients with Alzheimer's disease (AD) and healthy control participants performed 2 conceptual repetition priming tasks, word-associate production and category-exemplar production. Both tasks had identical study-phases of reading target words aloud, had the most common responses as target items, and required production of a single response. Patients with AD showed normal priming on word-associate production but impaired priming on category-exemplar production. This dissociation in AD suggests that conceptual priming is not a unitary form of memory but rather is mediated by separable memory systems.
Vaidya
C J
CJ
Department of Psychology, Stanford University, California 94305, USA. vaidya@psych.stanford.edu
Gabrieli
J D
JD
Monti
L A
LA
Tinklenberg
J R
JR
Yesavage
J A
JA
D000368:Aged; D000544:Alzheimer Disease / Q000523:psychology*; D000704:Analysis of Variance; D001245:Association Learning; D016022:Case-Control Studies; D003071:Cognition; D003463:Cues; D005260:Female; D006801:Humans; D008297:Male; D008568:Memory; D011939:Mental Recall; D014936:Word Association Tests