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Vías del colículo superior humano representan la forma y el movimiento de objetos inminentes
Monica K Thieu1, Meera Sethi1, Elias Aberman1
1Department of Psychology, Emory University, Atlanta, GA, USA.
Cell reports
|February 27, 2026
Resumen
El colículo superior, una estructura del mesencéfalo, ayuda a detectar amenazas inminentes procesando el movimiento y la categoría del objeto. Su actividad se relaciona con respuestas emocionales, desafiando las visiones de la emoción centradas en el cerebro.
Área de la Ciencia:
- Neurociencia; Ciencias Cognitivas; Neurociencia Computacional
Sus antecedentes:
- El colículo superior (SC) es una estructura del mesencéfalo vital para la detección y respuesta a amenazas.; Su papel preciso en la cognición humana y el procesamiento emocional no se comprende completamente.
Objetivo del estudio:
- Investigar la respuesta del colículo superior a las amenazas inminentes utilizando fMRI y modelado computacional.; Comprender cómo el SC codifica la información relacionada con la amenaza y su conexión con la experiencia emocional.
Principales métodos:
- Resonancia magnética funcional (fMRI) basada en tareas en dos experimentos.; Modelado computacional utilizando redes neuronales optimizadas para tareas para la detección de colisiones, el reconocimiento de objetos y la saliencia visual.; Análisis de la conectividad funcional y las medidas emocionales autoinformadas.
Principales resultados:
- El colículo superior humano codifica información sobre el movimiento y la categoría de objetos inminentes.; Los modelos de codificación predijeron con precisión la actividad del SC entre individuos.; Las respuestas del SC se correlacionaron con el miedo autoinformado, la valencia, la excitación y las firmas cerebrales de la emoción.
Conclusiones:
- El colículo superior desempeña un papel crucial en la detección de amenazas dentro de redes cortico-subcorticales más amplias.; Estos hallazgos desafían los modelos puramente cortico-céntricos de la experiencia emocional.; El SC integra información sensorial con el procesamiento emocional durante la percepción de amenazas.
Palabras clave:
neurocienciamodelado computacionalemociónfMRIinminentepercepción de objetospercepcióncolículo superiordetección de amenazasMás Videos Relacionados
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