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Stress-Enhanced Fear Learning, a Robust Rodent Model of Post-Traumatic Stress Disorder
Published on: October 13, 2018
Fear conditioning, synaptic plasticity and the amygdala: implications for posttraumatic stress disorder
1Center for Behavioral Neuroscience, Department of Psychiatry and Behavioral Sciences, Yerkes National Primate Research Center, Emory University School of Medicine, 954 Gatewood Drive, Atlanta, GA 30329, USA.
Trends in Neurosciences
|July 30, 2011
Summary
Posttraumatic stress disorder (PTSD) research explores the neural circuitry of fear. Understanding fear conditioning mechanisms, including brain-derived neurotrophic factor (BDNF), offers insights into PTSD and potential treatments.
Area of Science:
- Neuroscience
- Psychiatry
- Molecular Biology
Background:
- Posttraumatic stress disorder (PTSD) is a debilitating anxiety disorder following trauma.
- The societal and individual costs of PTSD are substantial.
- Understanding the neural basis of fear is crucial for PTSD research.
Purpose of the Study:
- To review the neural circuitry of PTSD in relation to fear circuitry.
- To discuss fear conditioning as a model for studying PTSD molecular mechanisms.
- To explore potential pharmacological treatments for PTSD.
Main Methods:
- Review of existing literature on PTSD and fear circuitry.
- Focus on fear conditioning models.
- Examination of molecular systems including BDNF-TrkB, GABAergic, and glutamatergic pathways.
Main Results:
- Neural circuitry in PTSD shares similarities with fear circuitry.
- Fear conditioning provides a framework for studying molecular underpinnings of PTSD.
- Specific neurobiological systems are implicated in fear and PTSD.
Conclusions:
- Fear conditioning is a valuable model for PTSD research.
- Understanding molecular mechanisms can inform PTSD treatment strategies.
- Targeting specific neurobiological pathways may lead to new pharmacological interventions.
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