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La comparación social afecta la actividad cerebral relacionada con la recompensa en el estriado ventral humano
K Fliessbach1, B Weber, P Trautner
1Life and Brain Center Bonn, Department of NeuroCognition and Clinic of Epileptology, Bonn, Germany.
Science (New York, N.Y.)
|November 24, 2007
Resumen
La comparación social tiene un impacto significativo en la actividad cerebral relacionada con el procesamiento de la recompensa. Observar las ganancias de los demás influye en nuestras propias respuestas neuronales, destacando la sensibilidad del cerebro a los resultados financieros relativos.
Área de la Ciencia:
- La neurociencia es la neurociencia.
- La economía del comportamiento es la economía del comportamiento.
- Psicología social Psicología social.
Sus antecedentes:
- Las teorías económicas tradicionales hacen hincapié en las recompensas absolutas, pero la evidencia conductual indica que las comparaciones sociales afectan el bienestar y las decisiones.
- Comprender cómo la comparación social influye en el bienestar individual es crucial en los entornos sociales.
Objetivo del estudio:
- Investigar el impacto neurofisiológico de las comparaciones sociales en la actividad cerebral relacionada con la recompensa.
- Examinar cómo las variaciones en las recompensas financieras de los demás afectan las respuestas cerebrales de un individuo.
Principales métodos:
- La resonancia magnética funcional (fMRI) se utilizó para escanear a los sujetos.
- Pares de sujetos realizaron una tarea de estimación simultánea con recompensas monetarias.
- Se midieron las respuestas dependientes del nivel de oxigenación sanguínea (BOLD) en el estriado ventral.
Principales resultados:
- La actividad del estriado ventral de un sujeto fue modulada por el pago del sujeto de comparación.
- La evidencia neurofisiológica confirmó que la comparación social afecta el procesamiento de la recompensa.
- El sistema de recompensa del cerebro es sensible a la información financiera relativa.
Conclusiones:
- La comparación social juega un papel importante en el procesamiento de la recompensa humana.
- La neuroimagen proporciona evidencia de la base neuronal de los efectos de comparación social.
- Estos hallazgos desafían los modelos económicos puramente absolutos basados en la recompensa.
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