Article: Brain mechanisms underlying the placebo effect in neurological disorders

Summary

The potential of placebo treatments to alleviate a variety of medical conditions has long been recognised. Although the placebo effect is widely known, the physiological mechanisms underlying this phenomenon are not well understood. This review focuses on the existing evidence for placebo responses in different neurological conditions, including pain, Parkinson's disease, depression, sleep and immune-mediated disorders. Special attention is paid to the neural changes associated with placebo treatments, as revealed by in vivo neurophysiological and functional neuroimaging studies. Converging evidence suggests that placebo analgesia is linked to the activation of the endogenous opioid ...

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