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Titolo:
The selection and suppression of action: ERP correlates of executive control in humans
Autore:
Jackson, SR; Jackson, GM; Roberts, M;
Indirizzi:
Univwynedd, Sch Psychol, Ctr Percept Attent & Motor Sci, Bangor LL57 2DG, G Univ Wales Bangor Gwynedd Wales LL57 2DG & Motor Sci, Bangor LL57 2DG, G
Titolo Testata:
NEUROREPORT
fascicolo: 4, volume: 10, anno: 1999,
pagine: 861 - 865
SICI:
0959-4965(19990317)10:4<861:TSASOA>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
NO-GO REACTION; POSTERIOR PARIETAL CORTEX; TIME HAND MOVEMENT; DISCRIMINATION; MONKEY; INHIBITION; PREMOTOR; LESIONS; TASK;
Keywords:
event-related potentials; executive function; frontal lobes; go/no-go; N2 component; P300 component;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Jackson, SR Univwynedd, Sch Psychol, Ctr Percept Attent & Motor Sci, Bangor LL57 2DG, G Univ Wales Bangor Gwynedd Wales LL57 2DG , Bangor LL57 2DG, G
Citazione:
S.R. Jackson et al., "The selection and suppression of action: ERP correlates of executive control in humans", NEUROREPORT, 10(4), 1999, pp. 861-865

Abstract

A key aspect of higher cortical function is the ability to selectively withhold or suppress action where appropriate. To examine the time course of executive control we used dense-sensor EEG recording techniques to study event-related electrical potentials (ERPs during a visual 'go/no-go' task. We show that during both go and no-go trials there is a positive deflection inthe ERP, which develops over posterior parietal sensors similar to 350 ms (P300) after the onset of a conditional visual stimulus, but. is selectively suppressed during no-go trials. We also show that this modulation of the parietal P300 is preceded by a negative deflection in the ERP recorded overfrontal cortex (N2), which is apparent only for no-go trials. We suggest that this signal provides an electrophysiological marker in man for the decision to withhold the execution of a motor response. NeuroReport 10:861-865 (C) 1999 Lippincott Williams & Wilkins.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 20:46:35