Reward-based contextual learning supported by anterior cingulate cortex.
Cogn Affect Behav Neurosci
; 17(3): 642-651, 2017 06.
Article
em En
| MEDLINE
| ID: mdl-28236171
ABSTRACT
The anterior cingulate cortex (ACC) is commonly associated with cognitive control and decision making, but its specific function is highly debated. To explore a recent theory that the ACC learns the reward values of task contexts (Holroyd & McClure in Psychological Review, 122, 54-83, 2015; Holroyd & Yeung in Trends in Cognitive Sciences, 16, 122-128, 2012), we recorded the event-related brain potentials (ERPs) from participants as they played a novel gambling task. The participants were first required to select from among three games in one "virtual casino," and subsequently they were required to select from among three different games in a different virtual casino; unbeknownst to them, the payoffs for the games were higher in one casino than in the other. Analysis of the reward positivity, an ERP component believed to reflect reward-related signals carried to the ACC by the midbrain dopamine system, revealed that the ACC is sensitive to differences in the reward values associated with both the casinos and the games inside the casinos, indicating that participants learned the values of the contexts in which rewards were delivered. These results highlight the importance of the ACC in learning the reward values of task contexts in order to guide action selection.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Recompensa
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Tomada de Decisões
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Potenciais Evocados
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Giro do Cíngulo
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Aprendizagem
Limite:
Adolescent
/
Adult
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Female
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Humans
/
Male
Idioma:
En
Revista:
Cogn Affect Behav Neurosci
Assunto da revista:
CIENCIAS DO COMPORTAMENTO
/
NEUROLOGIA
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Canadá