Contextual valence influences the neural dynamics of time and magnitude representation during feedback evaluation.
Psychophysiology
; 60(10): e14335, 2023 10.
Article
en En
| MEDLINE
| ID: mdl-37194930
Contextual valence is an important dimension during value-based decision-making. Previous research has revealed behavioral and neural asymmetries between the gain context and the loss context. The present event-related potential study investigated the effects of contextual valence on neural dynamics underlying magnitude and time, two important reward dimensions, during feedback evaluation. Forty-two participants performed a simple guessing task in which they experienced both a gain context wherein high or low rewards were delivered immediately or six months later, and a loss context wherein high or low losses were delivered in the same way. Results showed that in the gain context, time and magnitude information were processed in a parallel way during the time windows of the reward positivity (RewP) and the P3. In the loss context, however, time and magnitude information were processed in a serial way such that time information was encoded during the RewP and P3 periods, whereas magnitude information was not tracked until the time window of the late positive potential. Our findings suggest that the neural dynamics underlying time and magnitude information are distinct between the gain and loss contexts, thus providing a novel perspective for the well-known gain-loss asymmetry.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Electroencefalografía
/
Juego de Azar
Tipo de estudio:
Prognostic_studies
Límite:
Humans
Idioma:
En
Revista:
Psychophysiology
Año:
2023
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
Estados Unidos