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Estructura de alta dimensionalidad subyacente a las diferencias individuales en la experiencia visual naturalista

Chihye Han1, Michael F Bonner1

  • 1Department of Cognitive Science, Zanvyl Krieger School of Arts & Sciences, Johns Hopkins University, 237 Krieger Hall, 3400 N. Charles Street, Baltimore, MD 21218, USA.

Current biology : CB
|January 22, 2026
PubMed
Resumen
Este resumen es generado por máquina.

Los cerebros individuales crean experiencias visuales únicas a través de una geometría neuronal de alta dimensionalidad. Esta compleja estructura geométrica da forma a la percepción y predice diferencias en el recuerdo de la memoria, ofreciendo nuevas perspectivas sobre el procesamiento visual subjetivo.

Palabras clave:
dimensionalidadfMRIgeometríadiferencias individualespelículasestímulos naturalistasrepresentaciones neuronalescomponentes principalescorteza visual

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Área de la Ciencia:

  • Neurociencia
  • Ciencia Cognitiva
  • Neurociencia Computacional

Sus antecedentes:

  • Las representaciones neuronales de la entrada sensorial varían significativamente entre individuos.
  • La arquitectura subyacente que impulsa estas diferencias individuales en el procesamiento visual no se comprende bien.

Objetivo del estudio:

  • Investigar cómo surgen experiencias visuales únicas a partir de una entrada sensorial idéntica.
  • Explorar la geometría neuronal de alta dimensionalidad subyacente a la variabilidad interindividual en la corteza visual.

Principales métodos:

  • Se utilizó la imagen por resonancia magnética funcional (fMRI) para registrar la actividad cerebral durante la visualización de películas naturalistas.
  • Se aplicó la descomposición espectral de las respuestas de fMRI para analizar patrones neuronales en múltiples dimensiones.
  • Se utilizaron medidas de correlación intersujeto para la comparación.

Principales resultados:

  • Se encontraron patrones neuronales idiosincrásicos que persistieron en varios órdenes de magnitud de dimensiones latentes.
  • Rangos dimensionales distintos dentro de la geometría neuronal codificaron aspectos cualitativamente diferentes del procesamiento visual individual.
  • Esta geometría neuronal multidimensional predijo diferencias conductuales en el recuerdo de la memoria y la abstracción de la descripción narrativa.

Conclusiones:

  • La experiencia visual subjetiva emerge de la información integrada a través de una amplia y extensa variedad de información.
  • Un marco geométrico de la actividad neuronal proporciona un enfoque novedoso para comprender las diferencias individuales en la percepción.
  • Estos hallazgos desafían las medidas convencionales de la variabilidad interindividual y resaltan la complejidad de los mundos visuales subjetivos.