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Titolo:
Event-related potential evidence for age-related differences in attentional allocation during a source monitoring task
Autore:
Dywan, J; Segalowitz, SJ; Webster, L; Hendry, K; Harding, J;
Indirizzi:
Brock Univ, Dept Psychol, St Catharines, ON L2S 3A1, Canada Brock Univ StCatharines ON Canada L2S 3A1 Catharines, ON L2S 3A1, Canada
Titolo Testata:
DEVELOPMENTAL NEUROPSYCHOLOGY
fascicolo: 1, volume: 19, anno: 2001,
pagine: 99 - 120
SICI:
8756-5641(2001)19:1<99:EPEFAD>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
OLDER ADULTS; RECOGNITION MEMORY; STIMULUS REPETITION; INTENTIONAL USES; SOURCE AMNESIA; BRAIN ACTIVITY; FALSE FAME; YOUNG; RECOLLECTION; RETRIEVAL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
49
Recensione:
Indirizzi per estratti:
Indirizzo: Dywan, J Brock Univ, Dept Psychol, St Catharines, ON L2S 3A1, Canada BrockUniv St Catharines ON Canada L2S 3A1 s, ON L2S 3A1, Canada
Citazione:
J. Dywan et al., "Event-related potential evidence for age-related differences in attentional allocation during a source monitoring task", DEV NEUROPS, 19(1), 2001, pp. 99-120

Abstract

Event-related potentials (ERPs) were recorded while older and younger adults were engaged in a source monitoring task. After studying a list of words, participants were presented with a recognition test during which some of the new words were repeated, rendering them as familiar as the study words. Instructions at test indicated whether the goal was to select the previously studied words or the repeated test items. Behaviorally, the younger adults were less likely to make source monitoring errors. ERPs, averaged only for correct trials, indicated that younger adults produced late positivitiesof greatest amplitude in response to whichever word type was designated astarget irrespective of its familiarity. The ERPs of the older adults were generally less differentiated and their late positivities greater for recently repeated words irrespective of target designation. These results suggest that source monitoring in young adults is facilitated by their ability toallocate and withdraw attention from stimuli on the basis of task relevance rather than familiarity alone, and that this attentional flexibility declines with age.

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Documento generato il 19/01/20 alle ore 00:37:54