Recording and decoding neural signals from the vagus nerve

Recording and decoding neural signals from the vagus nerve Dominique M Durand, distinguished Professor of Biomedical Engineering, Case Western Reserve University, Cleveland Ohio, USA, discusses the study of neural signals from the vagus nerve. The vagus nerve is a critical component of the autonomic nervous system, providing sensory input to the brain and controlling the internal organs through its parasympathetic outputs. Autonomic dysfunction has been associated with various chronic diseases such as epilepsy, diabetes, hypertension, and cancer. Vagus-nerve stimulation has been successful in treating many diseases, particularly epilepsy, even though the mechanisms underlying its effectiveness are not well understood. In particular interest is the fact that vagal afferent fibers innervate all the body’s organs and carry information about the health and status of these organs. The majority of vagal afferent fibers come from the gut, and abnormal vagal activity has been implicated in eating and metabolic disorders. Therefore, the ability to record and interpret the vagal signals could provide critical insights into the pathophysiology of various diseases and offer potential therapeutic targets.