Video Experimental Relacionado
Updated: Feb 11, 2026
11:17
Extinction Training During the Reconsolidation Window Prevents Recovery of Fear
Published on: August 24, 2012
36.2K
Modulación de la memoria traumática en el TEPT informada por circuitos: integración de la extinción, la supresión y
Xin Yi1, Yuan-Bo Zhang1,2, Tong-Zhou Yu1
1Department of Rehabilitation Medicine, Huashan Hospital, Center for Clinical Neuro-AI, Institute for Translational Brain Research, State Key Laboratory of Brain Function and Disorders, Ministry of Education Frontiers Center for Brain Science, Fudan University, Shanghai, 200032, China.
Molecular psychiatry
|February 9, 2026
Resumen
Este estudio explica cómo el trastorno de estrés postraumático (TEPT) afecta la memoria, ofreciendo un marco basado en circuitos para estabilizar la extinción del miedo y mejorar el tratamiento del TEPT.
Área de la Ciencia:
- Neurociencia; Psicología; Investigación de la memoria
Sus antecedentes:
- El trastorno de estrés postraumático (TEPT) se caracteriza por respuestas persistentes al estrés que afectan los sistemas de memoria.
- Estos incluyen engramas de amenaza ampliados, inhibición contextual debilitada y extinción frágil del miedo.
- La comprensión actual carece de un marco coherente que vincule las intervenciones conductuales con la neurobiología de la memoria del miedo.
Objetivo del estudio:
- Proponer un marco informado por circuitos para comprender y tratar el TEPT.
- Integrar la evidencia preclínica y humana para estabilizar la memoria del miedo.
- Identificar objetivos terapéuticos novedosos para un alivio duradero del TEPT.
Principales métodos:
- Revisión e integración de evidencia preclínica y humana sobre la memoria del miedo.
- Enfoque en mecanismos a nivel de circuito que involucran vías del hipocampo-corteza prefrontal-amígdala.
- Exploración de procedimientos conductuales como el refuerzo de la extinción, el entrenamiento dirigido y la reactivación basada en el sueño.
- Investigación de la edición de la reconsolidación a través de la recuperación rica en errores de predicción, la neuromodulación y la farmacología psicodélica.
Principales resultados:
- La extinción se puede estabilizar al interactuar con vías específicas del hipocampo-corteza prefrontal-amígdala.
- El entrenamiento dirigido y la reactivación basada en el sueño mejoran el control de arriba hacia abajo y la discriminación de amenazas.
- Las ventanas de reconsolidación, cuando se combinan con neuromodulación o psicodélicos, sesgan la plasticidad hacia la seguridad.
- Se presenta un marco para integrar la edición de la extinción, el control de la memoria y la reconsolidación.
Conclusiones:
- Un enfoque informado por circuitos ofrece una estrategia coherente para tratar el TEPT.
- La estabilización de la extinción del miedo y la actualización de las memorias desadaptativas son objetivos terapéuticos clave.
- Las intervenciones novedosas dirigidas a la reconsolidación de la memoria son prometedoras para un alivio duradero del TEPT.
Palabras clave:
memoria traumáticaTEPTextinción del miedoreconsolidación de la memorianeurocienciapsicologíainvestigación de la memoriaMás Videos Relacionados
08:32Disrupting Reconsolidation of Fear Memory in Humans by a Noradrenergic β-Blocker
Published on: December 18, 2014
23.4K
10:43Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity
Published on: July 1, 2014
15.8K
Videos de Conceptos Relacionados
01:20Traumatic Memory
591
Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual...
591
01:24Generalization, Discrimination, and Extinction
1.4K
Generalization, discrimination, and extinction are key concepts in operant conditioning that influence how behaviors are learned and maintained.
Generalization occurs when a behavior reinforced in one context is performed in similar situations. For instance, a student who studies diligently for calculus and receives excellent grades might apply the same study habits to psychology and history, expecting similar results. Generalization shows how learning in one setting can influence behavior in...
Generalization occurs when a behavior reinforced in one context is performed in similar situations. For instance, a student who studies diligently for calculus and receives excellent grades might apply the same study habits to psychology and history, expecting similar results. Generalization shows how learning in one setting can influence behavior in...
1.4K
01:23System of Memory
7.4K
Memory is categorized into three major systems: sensory memory, short-term memory (STM), and long-term memory (LTM). These systems differ in their capacity and the duration for which they can hold information. Sensory memory captures raw sensory input from the environment, holding it for just a few seconds or less. For example, on hearing a brief, loud sound, like a car horn honking, the sound seems to linger in the mind for a moment even after it stops. This is an instance of sensory memory...
7.4K
01:24Working Memory
923
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
923
01:17Second-Order Circuits
3.6K
Integrating two fundamental energy storage elements in electrical circuits results in second-order circuits, encompassing RLC circuits and circuits with dual capacitors or inductors (RC and RL circuits). Second-order circuits are identified by second-order differential equations that link input and output signals.
Input signals typically originate from voltage or current sources, with the output often representing voltage across the capacitor and/or current through the inductor. For example, in...
Input signals typically originate from voltage or current sources, with the output often representing voltage across the capacitor and/or current through the inductor. For example, in...
3.6K
01:26Integration by Parts: Indefinite Integrals
215
Integration by parts is a fundamental technique in calculus for evaluating integrals involving the product of two functions. It is particularly useful when direct integration is not feasible. The method is based on the product rule for differentiation, which states that the derivative of a product equals the derivative of the first function times the second, plus the first function times the derivative of the second. By integrating this identity and rearranging terms, the integration by parts...
215