Traumatization and chronic pain: a further model of interaction.

Egloff, Niklaus; Hirschi, Anna; von Känel, Roland (2013). Traumatization and chronic pain: a further model of interaction. Journal of pain research, 6, pp. 765-770. Dove Medical Press 10.2147/JPR.S52264

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Up to 80% of patients with severe posttraumatic stress disorder are suffering from "unexplained" chronic pain. Theories about the links between traumatization and chronic pain have become the subject of increased interest over the last several years. We will give a short summary about the existing interaction models that emphasize particularly psychological and behavioral aspects of this interaction. After a synopsis of the most important psychoneurobiological mechanisms of pain in the context of traumatization, we introduce the hypermnesia-hyperarousal model, which focuses on two psychoneurobiological aspects of the physiology of learning. This hypothesis provides an answer to the hitherto open question about the origin of pain persistence and pain sensitization following a traumatic event and also provides a straightforward explanatory model for educational purposes.

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