Individual Differences in Hippocampal Volume as a Function of BMI and Reward Sensitivity
Ver/ Abrir
Impacto
Scholar |
Otros documentos de la autoría: Parcet, Maria Antonia; Adrián-Ventura, Jesús; Costumero, Víctor; Avila, Cesar
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/8033
comunitat-uji-handle3:10234/8636
comunitat-uji-handle4:
INVESTIGACIONMetadatos
Título
Individual Differences in Hippocampal Volume as a Function of BMI and Reward SensitivityFecha de publicación
2020-04-09Editor
Frontiers MediaCita bibliográfica
PARCET, Maria Antonia; ADRIÁN-VENTURA, Jesús; COSTUMERO, Víctor; ÁVILA, César (2020). Individual Differences in Hippocampal Volume as a Function of BMI and Reward Sensitivity. Frontiers in Behavioral Neuroscience, v. 14, art. 53Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.frontiersin.org/articles/10.3389/fnbeh.2020.00053/fullVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Sensitivity to reward is a personality trait that predisposes a person to several addictive behaviors, including the presence of different risky behaviors that facilitates uncontrolled eating. However, the multifactorial ... [+]
Sensitivity to reward is a personality trait that predisposes a person to several addictive behaviors, including the presence of different risky behaviors that facilitates uncontrolled eating. However, the multifactorial nature of obesity blurs a direct relationship between the two factors. Here, we studied the brain anatomic correlates of the interaction between reward sensitivity and body mass index (BMI) to investigate whether the coexistence of high BMI and high reward sensitivity structurally alters brain areas specifically involved in the regulation of eating behavior. To achieve this aim, we acquired T1-weightedimagesandmeasuredrewardsensitivityusingtheSensitivitytoPunishment and Sensitivity to Reward Questionnaire (SPSRQ) and BMI in a sample of 206 adults. Results showed that reward sensitivity and BMI were not significantly correlated. However, neuroimaging results confirmed a relationship between BMI and reduced volume in the medial and lateral orbitofrontal cortex, and between reward sensitivity and lower striatum volume. Importantly, the interaction between the two factors was significantly related to the right anterior hippocampus volume, showing that stronger reward sensitivity plus a higher BMI were associated with reduced hippocampal volume. The hippocampus is a brain structure involved in the higher-order regulation of feeding behavior. Thus, a dysfunctional hippocampus may contribute to maintaining a vicious cycle that predisposes people to obesity. [-]
Publicado en
Frontiers in Behavioral Neuroscience (2020), v. 14Derechos de acceso
info:eu-repo/semantics/openAccess
Aparece en las colecciones
- PSB_Articles [1301]
El ítem tiene asociados los siguientes ficheros de licencia: