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Titolo:
Neural activity in the human brain relating to uncertainty and arousal during anticipation
Autore:
Critchley, HD; Mathias, CJ; Dolan, RJ;
Indirizzi:
Univ Coll London, Inst Neurol, Wellcome Dept Cognit Neurol, London WC1N 3BG, England Univ Coll London London England WC1N 3BG eurol, London WC1N 3BG, England Natl Hosp Neurol & Neurosurg, Autonom Unit, London WC1N 3BG, England Natl Hosp Neurol & Neurosurg London England WC1N 3BG n WC1N 3BG, England St Marys Hosp, Imperial Coll Sch Med, Neurovasc Med Unit, London W2 1NY, England St Marys Hosp London England W2 1NY asc Med Unit, London W2 1NY, England
Titolo Testata:
NEURON
fascicolo: 2, volume: 29, anno: 2001,
pagine: 537 - 545
SICI:
0896-6273(200102)29:2<537:NAITHB>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
PRIMATE ORBITOFRONTAL CORTEX; DORSOLATERAL PREFRONTAL CORTEX; SKIN-CONDUCTANCE RESPONSES; ANTERIOR CINGULATE CORTEX; FRONTAL-LOBE DAMAGE; WORKING-MEMORY; ELECTRODERMAL ACTIVITY; HUMAN AMYGDALA; ACTIVATION; NEURONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
53
Recensione:
Indirizzi per estratti:
Indirizzo: Critchley, HD Univ Coll London, Inst Neurol, Wellcome Dept Cognit Neurol, 12 Queen Sq, London WC1N 3BG, England Univ Coll London 12 Queen Sq London England WC1N 3BG ngland
Citazione:
H.D. Critchley et al., "Neural activity in the human brain relating to uncertainty and arousal during anticipation", NEURON, 29(2), 2001, pp. 537-545

Abstract

We used functional magnetic resonance neuroimaging to measure brain activity during delay between reward-related decisions and their outcomes, and the modulation of this delay activity by uncertainty and arousal. Feedback, indicating financial gain or loss, was given following a fixed delay. Anticipatory arousal was indexed by galvanic skin conductance. Delay-period activity was associated with bilateral activation in orbital and medial prefrontal, temporal, and right parietal cortices. During delay, activity in anterior cingulate and orbitofrontal cortices was modulated by outcome uncertainty, whereas anterior cingulate, dorsolateral prefrontal, and parietal cortices activity was modulated by degree of anticipatory arousal. A distinct region of anterior cingulate was commonly activated by both uncertainty and arousal. Our findings highlight distinct contributions of cognitive uncertainty and autonomic arousal to anticipatory neural activity in prefrontal cortex.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 03:02:35