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Titolo:
The effect of immediate and delayed word repetition on event-related potential in a continuous recognition task
Autore:
Kim, MS; Kim, JJ; Kwon, JS;
Indirizzi:
Seoul Natl Univ, Coll Med, Dept Psychiat, Chongno Gu, Seoul 110744, South Korea Seoul Natl Univ Seoul South Korea 110744 o Gu, Seoul 110744, South Korea SNU, MRC, Inst Neurosci, Chongno Gu, Seoul 110744, South Korea SNU SeoulSouth Korea 110744 osci, Chongno Gu, Seoul 110744, South Korea Seoul Natl Univ, Seoul, South Korea Seoul Natl Univ Seoul South KoreaSeoul Natl Univ, Seoul, South Korea
Titolo Testata:
COGNITIVE BRAIN RESEARCH
fascicolo: 3, volume: 11, anno: 2001,
pagine: 387 - 396
SICI:
0926-6410(200106)11:3<387:TEOIAD>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
UNILATERAL TEMPORAL LOBECTOMY; EVOKED-POTENTIALS; BRAIN POTENTIALS; FIELD POTENTIALS; TERM-MEMORY; LOBE; COMPONENTS; P300; ERPS; GENERATORS;
Keywords:
immediate and delayed word repetition; event-related potential; N400; early and late P300; template matching;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Kwon, JS Seoul Natl Univ, Coll Med, Dept Psychiat, Chongno Gu, 28 Yeongon Dong, Seoul 110744, South Korea Seoul Natl Univ 28 Yeongon Dong Seoul South Korea 110744 h Korea
Citazione:
M.S. Kim et al., "The effect of immediate and delayed word repetition on event-related potential in a continuous recognition task", COGN BRAIN, 11(3), 2001, pp. 387-396

Abstract

The dissociation of immediate and delayed word repetition was studied using a continuous recognition memory task; and event-related potential (ERP). Among 240 stimulus words. 40 words were not repeated, 100 were immediately repeated and 100 were repeated after 5 intervening words. Words presented only once during the experiment were referred to as new words. Subjects responded faster and more accurately to words repeated immediately than to new words and to words repeated after a delay. In terms of ERP results, immediate repetition was associated with large P300 amplitude, early P300 latency and the absence of N400, while delayed repetition was associated with smallP300 amplitude, late P300 latency and the presence of N400. N400 was elicited only to new words and to those repeated after intervening words. The general morphology of the waveforms was similar for two repetition conditionsuntil around 310 ms after the onset of stimulus. These results indicate that distinct neural systems subserve the immediate and delayed repetition effect, and that the difference between the two emerges around 310 ms poststimulus. Immediate and delayed word repetition are considered in terms of template matching and memory searching, and are possibly mediated by the parietal and left medial temporal lobes, respectively. (C) 2001 Elsevier ScienceB.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 10:24:40