A common mechanism in verb and noun naming deficits in Alzheimer's patients.
We tested the ability of Alzheimer's patients and elderly controls to name living and non-living nouns, and manner and instrument verbs. Patients' error patterns and relative performance with different categories showed evidence of graceful degradation for both nouns and verbs, with particular domain-specific impairments for living nouns and instrument verbs. Our results support feature-based, semantic representations for nouns and verbs and support the role of inter-correlated features in noun impairment, and the role of noun knowledge in instrument verb impairment.
Almor
Amit
A
University of South Carolina, Columbia, SC 29208, United States. almor@sc.edu
Aronoff
Justin M
JM
MacDonald
Maryellen C
MC
Gonnerman
Laura M
LM
Kempler
Daniel
D
Hintiryan
Houri
H
Hayes
Unja L
UL
Arunachalam
Sudha
S
Andersen
Elaine S
ES
D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000503:physiopathology*; D003072:Cognition Disorders / Q000503:physiopathology; D005260:Female; D006801:Humans; D007806:Language Disorders / Q000503:physiopathology*; D008297:Male; D010364:Pattern Recognition, Visual / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D012660:Semantics; D013068:Speech Production Measurement; D014705:Verbal Behavior / Q000502:physiology; D014825:Vocabulary
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