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Titolo:
False recognition in a verbal memory task: an event-related potential study
Autore:
Walla, P; Endl, W; Lindinger, G; Deecke, L; Lang, WF;
Indirizzi:
Univ Vienna, Dept Clin Neurol, A-1090 Vienna, Austria Univ Vienna ViennaAustria A-1090 pt Clin Neurol, A-1090 Vienna, Austria Univ Vienna, Dept Zool, A-1090 Vienna, Austria Univ Vienna Vienna Austria A-1090 nna, Dept Zool, A-1090 Vienna, Austria
Titolo Testata:
COGNITIVE BRAIN RESEARCH
fascicolo: 1, volume: 9, anno: 2000,
pagine: 41 - 44
SICI:
0926-6410(200001)9:1<41:FRIAVM>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
BRAIN ACTIVITY; RETRIEVAL; FMRI; TRUE;
Keywords:
event-related potential; verbal false recognition; frontal and parietal lobes;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Walla, P Univ Vienna, Dept Clin Neurol, Wahringer Gurtel 18-20, A-1090 Vienna, Austria Univ Vienna Wahringer Gurtel 18-20 Vienna Austria A-1090 Austria
Citazione:
P. Walla et al., "False recognition in a verbal memory task: an event-related potential study", COGN BRAIN, 9(1), 2000, pp. 41-44

Abstract

Brain potentials were recorded from 15 healthy young subjects during the performance of a word recognition task. During the study phase, subjects hadto intentionally memorise a series of words. These words were presented again together with the same number of new words in a following test phase where the instruction was to discriminate between repeated words and new words. We compared event-related potentials (ERPs) evoked by correctly identified repeated words (hits) and ERPs evoked by incorrectly classified new words (false alarms). Although both types of words were thought to be repeated the ERPs indicated differences between these two conditions starting at about 450 ms after the stimulus onset. These differences were mostly pronounced over frontal scalp locations but occurred also over parietal scalp locations (false alarms produced significantly more negative going ERPs than hits). We interpret that frontal and parietal brain areas show greater activation during false recognition because of a more intensive search for item representations. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 07:09:48