Abstract In Posttraumatic Stress Disorder (PTSD), fear and anxiety become dysregulated
following psychologically traumatic events. Regulation of fear and anxiety involves both high …

Post-traumatic stress disorder (PTSD) is accompanied by disturbed sleep and an impaired
ability to learn and remember extinction of conditioned fear. Following a traumatic event, the …

Abstract Study Objectives Sleep disturbances increase risk of posttraumatic stress disorder
(PTSD). Sleep effects on extinction may contribute to such risk. Neural activations to fear …

Fear learning is critical in the development and maintenance of posttraumatic stress disorder
(PTSD) symptoms, and safety learning and extinction are necessary for recovery. Studies in …

Posttraumatic stress disorder (PTSD) is a prevalent disorder that is associated with poor
clinical and health outcomes, and considerable health care utilization and costs. Recent …

Abstract Purpose of Review The emotional memory and learning model of PTSD posits
maladaptive fear conditioning, extinction learning, extinction recall, and safety learning as …

Abstract Background Posttraumatic Stress Disorder (PTSD) is associated with a number of
negative physical and mental health consequences. Fear conditioning plays an important …

Sleep abnormalities, such as insomnia, nightmares, hyper-arousal, and difficulty initiating or
maintaining sleep, are diagnostic criteria of posttraumatic stress disorder (PTSD). The vivid …

Fear conditioning is considered an animal model of post-traumatic stress disorder. Such
models have shown fear conditioning disrupts subsequent rapid eye movement sleep …

BACKGROUND:: Neuroendocrine hormones, which regulate both homeostasis and stress
responses, provide homeostatic recovery and sleep suppression to brains under stress. We …