Traumatic experiences generate among the strongest memories that can result in trauma-related disorders. Despite the high prevalence of these disorders, effective treatment options are scarce, calling for a deterministic understan...
ver más
¿Tienes un proyecto y buscas un partner? Gracias a nuestro motor inteligente podemos recomendarte los mejores socios y ponerte en contacto con ellos. Te lo explicamos en este video
Proyectos interesantes
PSI2011-26237
NEUROMODULACION DE LA ACTIVIDAD DE AMIGDALA: IMPLICACIONES P...
48K€
Cerrado
PSI2017-83222-R
ANALISIS DE VARIABLES CONTEXTUALES QUE FAVORECEN PROCESAMIEN...
44K€
Cerrado
PID2021-126074NB-I00
DECODIFICACION DE LAS REPRESENTACIONES CORTICALES NEURONALES...
78K€
Cerrado
PID2020-119549GB-I00
FIGURAS QUERIDAS DE APOYO COMO UN MEDIO PARA MEJORAR LA TERA...
36K€
Cerrado
PID2021-124013OB-I00
MECANISMO DE CONSOLIDACION DE SISTEMAS PARA LA TRANSFERENCIA...
121K€
Cerrado
Descripción del proyecto
Traumatic experiences generate among the strongest memories that can result in trauma-related disorders. Despite the high prevalence of these disorders, effective treatment options are scarce, calling for a deterministic understanding of the neuronal mechanisms underlying traumatic memory attenuation. For this, rodent studies classically use fear extinction paradigms where aversive experiences are modeled with the exposure to an electrical foot shock. However, the simple nature of this stimulus does not mirror the complexity of traumatic events in humans which is likely to be processed by equally complex networks. Here, I propose to investigate for the first time the neural circuits underlying the extinction of traumatic memories induced by exposure to naturalistic threats, namely, predators and aggressive conspecifics. First, we will compile a comprehensive atlas of brain activity underlying extinction of these ethological traumas and generate network organization models, which will be causally probed by pathway-specific chemogenetic manipulations. Second, we will characterize the functional input-output connectome of ethological extinction centers using a combination of viral tracing, neuronal activity and optogenetically assisted circuit mapping. This set of data will, third, provide the substrate for the study of the neurophysiological and molecular mechanisms underlying efficient extinction of ethological traumas, which will be analyzed by pathway-specific in-vivo Ca2+ imaging, closed-loop optogenetics, ex-vivo electrophysiology and RNA sequencing. Lastly, we will investigate whether impairments at the level of these newly identified networks underlie extinction deficits at the basis of trauma-related disorders. Together, these results will pave the way for the identification of novel therapeutical targets for trauma-related disorders and shed light on how the brain can flexibly update complex memories.