JoVE Encyclopedia of Experiments
Neuroscience
0 views • 3:21 min • August 29th, 2025
Begin with a patient suffering from treatment-resistant depression, with a vagus nerve stimulation or VNS device implanted on the left vagus nerve.
Use a wand connected to a handheld computerized device to wirelessly control the implant.
Position the wand over the chest to transmit signals through the skin and activate the implant.
Initiate stimulation.
Electrical impulses from the implant stimulate the left vagus nerve, which projects to the brainstem.
The signals travel from the brainstem to other brain areas involved in mood regulation, activating neurons and triggering neurotransmitter release.
Receiving neurons detect these neurotransmitters, resulting in coordinated neuronal communication.
Over time, this enhanced signaling contributes to antidepressant effects.
Adjust the stimulation parameters to optimize therapeutic outcomes.
If uncomfortable side effects occur, place a magnet over the chest to temporarily stop the stimulation.
Monitor the long-term effectiveness of the treatment through regular follow-ups.
After evaluating for solid compliance and willingness to attend control and tuning visitations, connect the VNS wand to the handheld device and perform lead testing with a minimum
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