The device assists patients by strengthening motor connections when they perform an action correctly. Essentially, it's rewiring brain circuitry, a phenomenon also referred to as neuroplasticity. This means that the release of new neurotransmitters from the brain could help a patient who has lost mobility in their arms or legs to slowly regain control. Researchers hope that the additional layer of activation will prompt the brain to remember the associated motion, and improve the recovery process.

An earlier study showed that 'Paired Vagus Nerve Stimulation' helped around 85 percent of patients who received it. According to Dr. Marcie Bockbrader, a physiatrist at the Wexner Medical Center, it's "like turning on a switch"; she likens the Vivistim to a 'brain pacemaker' that makes a stroke patient's brain more responsive, and suggests that if it's used in combination with regular rehabilitation practices, it could potentially speed things up -- especially in patients who are facing more severe stroke-related impairments.

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