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Updated: Sep 10, 2025

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Large-scale Three-dimensional Imaging of Cellular Organization in the Mouse Neocortex
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Las redes funcionales corticales a gran escala se organizan en ciclos estructurados
Mats W J van Es1, Cameron Higgins2,3, Chetan Gohil2,4,5
1Oxford Centre for Human Brain Activity (OHBA), Oxford Centre for Integrative Neuroimaging, Department of Psychiatry, University of Oxford, Oxford, UK. mats.vanes@psych.ox.ac.uk.
Nature neuroscience
|August 27, 2025
Resumen
El cerebro
Área de la Ciencia:
- La neurociencia
- Ciencias cognitivas
- Neurociencia de los sistemas
Sus antecedentes:
- Las funciones cognitivas como la atención y la memoria requieren un procesamiento oportuno.
- La capacidad del cerebro para manejar estas funciones dentro de marcos de tiempo específicos no se entiende completamente.
- Los patrones de actividad cíclica pueden explicar el cumplimiento eficiente de la tarea cognitiva.
Objetivo del estudio:
- Investigar la dinámica temporal de las redes funcionales corticales a gran escala.
- Para determinar si las funciones cognitivas están organizadas en patrones cíclicos.
- Para explorar la relación entre estos ciclos y el rendimiento cognitivo.
Principales métodos:
- Análisis de cinco grandes conjuntos de datos de magnetoencefalografía (MEG).
- Estudiar la evolución temporal de las redes funcionales corticales canónicas.
- Cuantificación de la fuerza del ciclo y las métricas de velocidad.
Principales resultados:
- La dinámica de la red cortical, aunque estocástica, exhibe un patrón cíclico robusto.
- Esta estructura cíclica organiza estados funcionalmente similares en fases específicas (300-1,000 ms).
- La fuerza y la velocidad del ciclo son hereditarias y se correlacionan con la edad, la cognición y el comportamiento.
Conclusiones:
- Las redes funcionales corticales a gran escala operan de una manera inherentemente cíclica.
- Esta organización cíclica asegura la activación periódica de las funciones cognitivas esenciales.
- La ciclicidad de la red cerebral es un rasgo hereditario vinculado a las habilidades cognitivas.
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