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Updated: May 12, 2026

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Operant Protocols for Assessing the Cost-benefit Analysis During Reinforced Decision Making by Rodents
Published on: September 10, 2018
Las ratas y los humanos pueden acumular de manera óptima evidencia para la toma de decisiones
Bingni W Brunton1, Matthew M Botvinick, Carlos D Brody
1Princeton Neuroscience Institute, Princeton University, Princeton, NJ 08544, USA.
Resumen
El ruido en la toma de decisiones se origina en la evidencia sensorial, no en la memoria. Nuestras nuevas tareas y modelos revelan que el acumulador
Área de la Ciencia:
- La neurociencia cognitiva es la neurociencia cognitiva.
- La neurociencia computacional es la neurociencia computacional.
- La toma de decisiones de investigación para la toma de decisiones.
Sus antecedentes:
- La toma de decisiones implica la acumulación de pruebas, a menudo con el ruido que causa errores.
- La fuente exacta de ruido en este proceso sigue sin identificarse.
Objetivo del estudio:
- Para identificar el origen del ruido en la acumulación de evidencia durante la toma de decisiones.
- Para diferenciar entre el ruido en la entrada sensorial y los procesos de memoria interna.
Principales métodos:
- Desarrolló nuevas tareas de toma de decisiones con pulsos de evidencia sensorial cronometrados al azar.
- Utilizó modelos computacionales que analizan el tiempo de pulso ensayo por ensayo.
- Ruido cuantificado en la memoria frente a la evidencia sensorial por separado.
Principales resultados:
- Se descubrió que la memoria del acumulador era silenciosa tanto en ratas como en humanos.
- La variabilidad proviene principalmente de la adición de nuevas evidencias sensoriales.
- La nueva tarea y el enfoque de modelado aislaron con éxito las fuentes de ruido.
Conclusiones:
- La evidencia sensorial, no la memoria, es la principal fuente de ruido en este modelo de toma de decisiones.
- La metodología desarrollada ofrece una forma sólida de investigar los mecanismos internos de toma de decisiones.
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