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Operant Protocols for Assessing the Cost-benefit Analysis During Reinforced Decision Making by Rodents
Published on: September 10, 2018
Respuesta al comentario sobre "En los monos que toman decisiones basadas en valores, las neuronas LIP codifican la
Marvin L Leathers1, Carl R Olson
1Center for the Neural Basis of Cognition, Carnegie Mellon University, Mellon Institute, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA.
Science (New York, N.Y.)
|April 27, 2013
Resumen
Las señales de penalización grandes desencadenaron respuestas neuronales más fuertes que las señales de penalización pequeñas, lo que indica que las neuronas de prueba temprana señalan la importancia de la señal, no el valor de la acción. Los patrones de actividad posteriores se explican mediante métodos experimentales.
Área de la Ciencia:
- La neurociencia es la neurociencia.
- Ciencias Cognitivas Ciencias Cognitivas.
- La toma de decisiones.
Sus antecedentes:
- La comprensión de los mecanismos neuronales de la toma de decisiones es crucial.
- Diferenciar entre la saliencia de la señal y la representación del valor de acción en el cerebro es un desafío continuo.
Objetivo del estudio:
- Para aclarar el papel de la actividad neuronal de prueba temprana en la señalización de la saliencia de la señal frente al valor de acción.
- Para abordar los patrones de actividad neuronal posteriores observados en investigaciones relacionadas.
Principales métodos:
- Registros electrofisiológicos en modelos animales durante las tareas de toma de decisiones.
- Análisis de las respuestas neuronales a señales con magnitudes de penalización variables.
- Examen de la actividad del período de retraso en relación con el diseño experimental.
Principales resultados:
- Resultado clave: las señales de penalización grandes provocaron respuestas neuronales significativamente más fuertes que las señales de penalización pequeñas.
- Conclusión clave: La actividad neuronal al comienzo del ensayo refleja la relevancia de la señal, no el valor de acción.
- Los patrones de actividad posteriores del período de retraso son consistentes con la metodología experimental empleada.
Conclusiones:
- Las primeras respuestas neuronales señalan de manera confiable la importancia de las próximas elecciones.
- La distinción entre la saliencia de la señal y el valor de acción está respaldada por datos neuronales de ensayos tempranos.
- La metodología experimental explica adecuadamente los patrones observados en la actividad neuronal posterior.
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