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- David A. Pérez Martínez
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[1]Hostinar CE, Gunnar MR. Social Support Can Buffer against Stress and Shape Brain Activity. AJOB Neuroscience. 2015; 6: 34–42. https://doi.org/10.1080/21507740.2015.1047054.
[2]American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders (5th ed., text rev.). Editorial médica Panamericana: España. 2022.
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, Inmaculada Crespo 1,*,†
1 Departamento de Psicobiología, CES Cardenal Cisneros (Centro Adscrito a la Universidad Complutense de Madrid), E-28006 Madrid, España
†Estos autores contribuyeron por igual.
Abstract
Post-traumatic stress disorder (PTSD) develops in response to a traumatic experience, whether real or threatening, which produces emotions of intense fear and memory problems, significantly damaging the quality of life of those who manifest it. In recent years, anatomical-functional changes in the amygdala-hippocampus-prefrontal cortex circuit have begun to be studied as a key factor in the prevention, vulnerability, and treatment of PTSD, with neuroplasticity being one of the factors of greatest interest. Therefore, this review will address the latest published data regarding PTSD and neuroplasticity.
Data from preclinical and clinical models support that a traumatic experience modifies both synaptic plasticity through electrophysiological and chemical variables, as well as myelin plasticity which enables short and long-distance connections. This remodelling of circuitry is crucial for the development of PTSD. However, it is also closely associated with prevention and positive treatment outcomes. Variables such as social support or the use of psychotherapy following a traumatic experience are linked to a good prognosis.
Therefore, there is an interesting connection between neuroplasticity and PTSD, although many questions remain open today, along with promising lines of prevention and intervention, including psychedelic substances.
Keywords
- myelin
- neuroplasticity
- psychedelics
- psychological trauma
- PTSD
- synapses
References
- [1]
Hostinar CE, Gunnar MR. Social Support Can Buffer against Stress and Shape Brain Activity. AJOB Neuroscience. 2015; 6: 34–42. https://doi.org/10.1080/21507740.2015.1047054. - [2]
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders (5th ed., text rev.). Editorial médica Panamericana: España. 2022. - [3]
Maercker A, Cloitre M, Bachem R, Schlumpf YR, Khoury B, Hitchcock C, et al. Complex post-traumatic stress disorder. Lancet (London, England). 2022; 400: 60–72. https://doi.org/10.1016/S0140-6736(22)00821-2. - [4]
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Mary A, Dayan J, Leone G, Postel C, Fraisse F, Malle C, et al. Resilience after trauma: The role of memory suppression. Science (New York, N.Y.). 2020; 367: eaay8477. https://doi.org/10.1126/science.aay8477. - [6]
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Ressler KJ, Berretta S, Bolshakov VY, Rosso IM, Meloni EG, Rauch SL, et al. Post-traumatic stress disorder: clinical and translational neuroscience from cells to circuits. Nature Reviews. Neurology. 2022; 18: 273–288. https://doi.org/10.1038/s41582-022-00635-8. - [9]
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