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Las interacciones entre el núcleo accumbens y la corteza auditiva predicen el valor de la recompensa musical
Valorie N Salimpoor1, Iris van den Bosch, Natasa Kovacevic
1Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada. vsalimpoor@research.baycrest.org
Science (New York, N.Y.)
|April 13, 2013
Resumen
El cerebro El cerebro es el cerebro.
Área de la Ciencia:
- La neurociencia es la neurociencia.
- Psicología Psicología Psicología.
- La cognición musical La cognición musical.
Sus antecedentes:
- Comprender cómo la música adquiere un valor subjetivo es crucial para explicar las experiencias estéticas.
- Investigaciones anteriores han implicado circuitos de recompensa en la preferencia musical, pero la base neuronal de la adquisición de valor para la música nueva sigue sin estar clara.
Objetivo del estudio:
- Investigar los mecanismos neuronales que subyacen a cómo la música gana valor de recompensa al escucharla por primera vez.
- Para identificar las regiones del cerebro y los patrones de conectividad funcional que predicen el valor subjetivo asignado a la nueva música.
Principales métodos:
- Se empleó imágenes de resonancia magnética funcional (IRMf) para medir la actividad cerebral y la conectividad funcional.
- Los participantes se sometieron a fMRI mientras escuchaban música nueva, seguido de un paradigma de subasta para evaluar la voluntad de pago.
Principales resultados:
- La actividad en las regiones striatales mesolímbicas, particularmente el núcleo accumbens, predijo la voluntad de pagar por música nueva.
- La corteza auditiva, la amígdala y la corteza prefrontal ventromedial mostraron una mayor actividad durante la valoración, pero su conectividad funcional con el núcleo accumbens fue el predictor clave del valor de la recompensa.
Conclusiones:
- Las recompensas estéticas de la música surgen de la interacción entre el circuito de recompensa del cerebro y las redes corticales involucradas en la percepción y la valoración.
- El núcleo accumbens juega un papel central en la asignación de valor a las experiencias auditivas novedosas, moduladas por la conectividad con las áreas sensoriales y evaluativas del cerebro.
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