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Titolo:
EFFECTS OF WORKING-MEMORY CAPACITY ON UNDERSTANDING RATE-ALTERED SPEECH
Autore:
SMALL JA; ANDERSEN ES; KEMPLER D;
Indirizzi:
SIMON FRASER UNIV,CTR GERONTOL RES,HARBOUR CTR,515 W HASTINGS ST,SUITE 2800 VANCOUVER BC V6B 5K3 CANADA UNIV SO CALIF LOS ANGELES CA 90089
Titolo Testata:
Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition
fascicolo: 2, volume: 4, anno: 1997,
pagine: 126 - 139
SICI:
1382-5585(1997)4:2<126:EOWCOU>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
ALZHEIMER-TYPE DEMENTIA; ADULT AGE-DIFFERENCES; SHORT-TERM-MEMORY; AUDITORY COMPREHENSION; INDIVIDUAL-DIFFERENCES; SENTENCE COMPREHENSION; PASSAGE COMPREHENSION; SYNTACTIC COMPLEXITY; ELDERLY LISTENERS; SPOKEN SENTENCES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Citazioni:
75
Recensione:
Indirizzi per estratti:
Citazione:
J.A. Small et al., "EFFECTS OF WORKING-MEMORY CAPACITY ON UNDERSTANDING RATE-ALTERED SPEECH", Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition, 4(2), 1997, pp. 126-139

Abstract

Age-related declines in language processing have been attributed in part to generalized cognitive slowing. Because of this slowing, it has been suggested that older adults' sentence comprehension might be facilitated by reducing the rate at which sentences are spoken. Research, however, has failed to reliably show that speaking slowly enhances comprehension. The present study explores the hypothesis that declines inworking memory (WM) would actually counteract any benefits derived from a reduction in speech rate. That is, at a slower than normal speechrate, more demands are placed on WM since information must be retained over a longer duration. The comprehension of normal and slow speech was examined for three Alzheimer's subjects, each presenting a unique profile of WM capacity. Results suggest that the effect of speech rateon comprehension is determined by the extent of WM capacity: A slow speech rate was beneficial only for the subject with the most preservedWM; speech rate did not affect comprehension for the subject with moderately impaired WM; and a slow speech rate was actually detrimental for the subject with the most severe WM impairment. The findings demonstrate the value of considering the involvement of multiple cognitive domains when assessing language processing abilities.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 19:07:30