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Acoplamiento estructura-función de la corteza límbica sensible a la adversidad infantil y amortigua los síntomas

Lucinda M Sisk¹, Taylor J Keding¹, Allison Drew¹

¹Department of Psychology, Yale University, New Haven, CT.

bioRxiv : the preprint server for biology

|January 7, 2026

Resumen

La adversidad infantil impacta la salud mental al alterar el desarrollo cerebral. La conectividad de circuitos cerebrales específicos, como el acoplamiento estructura-función (SFC) de la amígdala-vmPFC, puede amortiguar los síntomas internalizantes, promoviendo la resiliencia en los jóvenes.

Área de la Ciencia:

Neurociencia
Psicología del Desarrollo
Psiquiatría

Sus antecedentes:

La adversidad infantil es un factor de riesgo significativo para problemas de salud mental de por vida.
Los circuitos corticolímbicos sensibles al estrés están implicados en la psicopatología relacionada con la adversidad.
El acoplamiento estructura-función (SFC) es un marcador sensible de la plasticidad y el desarrollo del cerebro.

Objetivo del estudio:

Investigar cómo el SFC en los circuitos corticolímbicos vincula la exposición a la adversidad infantil con los resultados de salud mental a lo largo del desarrollo.
Examinar las asociaciones entre la adversidad, los síntomas transdiagnósticos y el SFC de la amígdala-cortical/hipocampo-cortical en jóvenes.

Principales métodos:

Se utilizó una gran muestra de jóvenes (N=607) para analizar las asociaciones entre la exposición a la adversidad, los síntomas de salud mental y el SFC.
Se examinó el SFC de la amígdala-vmPFC y el SFC de la red límbica del hipocampo en relación con los cambios en el desarrollo y la adversidad.
Se empleó modelado estadístico para evaluar los efectos de moderación y amortiguación del SFC en los resultados relacionados con la adversidad.

Principales resultados:

La exposición a la adversidad modificó los cambios relacionados con la edad en el SFC de la amígdala-vmPFC, con una mayor adversidad relacionada con un aumento del SFC con el tiempo.
El SFC de la amígdala-vmPFC actuó como un amortiguador, con un mayor acoplamiento asociado con menores síntomas internalizantes a pesar de una alta adversidad.
Una mayor adversidad se relacionó con un menor SFC de la red límbica del hipocampo, lo que moderó el impacto de la adversidad en los síntomas internalizantes.

Conclusiones:

El neurodesarrollo de las redes de la amígdala-vmPFC y límbica del hipocampo se adapta de manera distintiva a la adversidad.
Estas adaptaciones en la conectividad cerebral juegan un papel en el riesgo y la resiliencia para la psicopatología internalizante.
El SFC en circuitos cerebrales específicos ofrece información sobre cómo los jóvenes lidian y se recuperan de la adversidad infantil.

Palabras clave:

adversidad infantil conectividad cerebral desarrollo cerebral salud mental resiliencia psicopatología neurociencia psicología del desarrollo psiquiatría

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