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Dissociar el papel de la corteza prefrontal dorsolateral y la corteza cingulada anterior en el control cognitivo
A W MacDonald1, J D Cohen, V A Stenger
1Department of Psychology, University of Pittsburgh, Pittsburgh, PA 15260, USA.
Science (New York, N.Y.)
|June 10, 2000
Resumen
El control cognitivo implica la implementación y el monitoreo de las funciones. Este estudio encontró regiones cerebrales distintas para cada uno: la corteza prefrontal dorsolateral izquierda para la implementación del control y la corteza cingulada anterior para el monitoreo del rendimiento.
Área de la Ciencia:
- La neurociencia es la neurociencia.
- Psicología Cognitiva Psicología cognitiva.
Sus antecedentes:
- Las teorías de control cognitivo proponen dos componentes clave: la implementación del control y el monitoreo del rendimiento.
- Comprender los fundamentos neuronales de estos componentes es crucial para la neurociencia cognitiva.
Objetivo del estudio:
- Investigar si los componentes de implementación y monitoreo del control cognitivo tienen bases neuronales distintas.
- Para mapear estas funciones a regiones específicas del cerebro utilizando neuroimagen.
Principales métodos:
- Utilizó imágenes de resonancia magnética funcional (fMRI) relacionadas con eventos.
- Empleó una tarea de cambio de tarea de Stroop para obtener demandas de control cognitivo.
Principales resultados:
- Se observó una doble disociación en la actividad neuronal.
- La corteza prefrontal dorsolateral izquierda (área de Brodmann 9) mostró una mayor actividad durante la preparación de la tarea (implementación del control).
- La corteza cingulada anterior (áreas 24 y 32 de Brodmann) exhibió una mayor actividad durante la respuesta al estímulo incongruente (monitoreo del rendimiento).
Conclusiones:
- Los hallazgos apoyan distintos sustratos neuronales para la implementación y el monitoreo del control cognitivo.
- La corteza prefrontal dorsolateral izquierda está implicada en la implementación del control.
- La corteza cingulada anterior está asociada con el monitoreo del rendimiento.
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