The
vagus nerve
is one of the primary communication pathways from the major organs of the body to the brain. VNS (vagus nerve stimulation) Therapy is delivered by a
pulse generator
(like a pacemaker) and thin, flexible wires that send mild pulses to the vagus nerve in the left side of the neck. The vagus nerve delivers these pulses to the areas of the brain involved in the regulation of mood. VNS Therapy targets specific areas of the brain that affect the production or activity of neurotransmitters, such as serotonin and norepinephrine
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"The device delivers very mild intermittent brief pulses to the left vagus nerve.
"The pulses that are delivered to the left vagus nerve are transmitted to the central nervous system, and they go to specific areas in the central nervous system that control mood, motivation, sleep, appetite, and other symptoms that are relevant to depression."
—A. John Rush, MD, Vice Chair, Department of Clinical Sciences Professor, Department of Psychiatry University of Texas Southwestern Medical Center at Dallas
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