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La reproducibilidad distingue las representaciones neuronales conscientes de las no conscientes
Aaron Schurger1, Francisco Pereira, Anne Treisman
1Department of Psychology, Princeton University, Princeton, NJ 08540, USA. schurger@princeton.edu
Science (New York, N.Y.)
|December 8, 2009
Resumen
La actividad cerebral consciente es más reproducible que la actividad no consciente, distinguiendo la experiencia subjetiva. Este patrón neuronal reproducible es independiente de la duración o intensidad de la respuesta.
Área de la Ciencia:
- La neurociencia es la neurociencia.
- Ciencias Cognitivas Ciencias Cognitivas.
- Filosofía de la mente La filosofía de la mente.
Sus antecedentes:
- La experiencia subjetiva es central para la conciencia.
- Investigaciones anteriores vincularon la duración y la intensidad de la respuesta neuronal a la percepción consciente.
- Existe una brecha en la comprensión de otros correlatos neuronales de la conciencia.
Objetivo del estudio:
- Identificar un nuevo atributo neural que diferencie las representaciones conscientes de las no conscientes.
- Investigar la reproducibilidad de los patrones de actividad neuronal en la experiencia subjetiva.
Principales métodos:
- Comparación de patrones de activación neuronal entre estados conscientes y no conscientes.
- Analizando la reproducibilidad de la actividad neuronal en múltiples ensayos.
- Evaluación de la reproducibilidad independientemente de la duración e intensidad de la respuesta neuronal.
Principales resultados:
- Los patrones de activación neuronal conscientes exhiben una mayor reproducibilidad que los no conscientes.
- Esta diferencia de reproducibilidad se mantiene para contenido perceptual idéntico.
- Los hallazgos no se explican por variaciones en la relación señal-ruido.
Conclusiones:
- La reproducibilidad de patrones neuronales es un marcador clave para la experiencia subjetiva consciente.
- La reproducibilidad ofrece una métrica distinta más allá de la duración y la intensidad para los correlatos neuronales de la conciencia.
- Este descubrimiento avanza nuestra comprensión de la base neuronal de la conciencia.
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