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Relacionando la exactitud introspectiva con las diferencias individuales en la estructura cerebral.

Stephen M Fleming1, Rimona S Weil, Zoltan Nagy

  • 1Wellcome Trust Centre for Neuroimaging, University College London, 12 Queen Square, London WC1N 3BG, UK. s.fleming@fil.ion.ucl.ac.uk

Science (New York, N.Y.)
|September 18, 2010
PubMed
Resumen
Este resumen es generado por máquina.

La introspección, la capacidad de evaluar el desempeño personal, se basa en la corteza prefrontal anterior. Esta región del cerebro.

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Área de la Ciencia:

  • La neurociencia es la neurociencia.
  • Neurociencia cognitiva y neurociencia cognitiva.
  • La neuroanatomía es la neuroanatomía.

Sus antecedentes:

  • La introspección es crucial para la experiencia subjetiva, pero su base neuronal no está clara.
  • La introspección precisa implica distinguir las decisiones correctas de las incorrectas, con diferencias individuales significativas.
  • Comprender la neuroanatomía de la introspección es clave para comprender la autoconciencia.

Objetivo del estudio:

  • Para identificar la base neuroanatómica de las diferencias individuales en la capacidad introspectiva.
  • Investigar la relación entre la estructura cerebral y la capacidad de autoevaluación del desempeño.
  • Para determinar si la capacidad introspectiva tiene un sustrato neural distinto.

Principales métodos:

  • Se utilizó una tarea de percepción-decisión para disociar el rendimiento objetivo de la capacidad introspectiva.
  • Se empleó imágenes de resonancia magnética (IRM) para examinar la estructura cerebral.
  • Se analizaron las correlaciones entre el volumen de materia gris, la microestructura de la materia blanca y la capacidad introspectiva.

Principales resultados:

  • La capacidad introspectiva se correlacionó significativamente con el volumen de materia gris en la corteza prefrontal anterior.
  • Las diferencias individuales en la introspección también se relacionaron con la microestructura de la materia blanca que se conecta con esta región prefrontal.
  • Los hallazgos sugieren una base neuroanatómica específica para la introspección, independiente del procesamiento sensorial primario.

Conclusiones:

  • La corteza prefrontal anterior es un sustrato neuroanatómico focal para la capacidad introspectiva.
  • La variabilidad en la capacidad introspectiva está asociada con diferencias estructurales en esta región del cerebro humano evolucionadamente desarrollada.
  • Esta investigación distingue las bases neuronales de la introspección de las de la percepción básica.