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Updated: Jun 13, 2026
11:02
Vagus Nerve Stimulation as a Tool to Induce Plasticity in Pathways Relevant for Extinction Learning
Published on: August 21, 2015
Dramatic first words spoken in 2 children after vagus nerve stimulation
1Department of Neurology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ 85013, USA.
Seminars in Pediatric Neurology
|May 4, 2010
Summary
Vagus nerve stimulation (VNS) may improve speech in non-verbal children, even without seizure reduction. This neurostimulation shows potential benefits beyond epilepsy treatment, impacting communication abilities.
Area of Science:
- Neuroscience
- Neurology
- Pediatrics
Background:
- Vagus nerve stimulation (VNS) is an established adjunctive therapy for refractory epilepsy.
- VNS is also FDA-approved for treating depression, with noted cognitive and mood benefits.
- Observed effects in epilepsy patients include improved alertness, cognition, behavior, and mood, independent of seizure control.
Observation:
- Two non-verbal children, aged 8 and 9, experienced speech onset shortly after VNS implantation.
- This occurred despite no reported seizure reduction or decrease in antiepileptic drugs.
Findings:
- VNS may induce speech development in non-verbal pediatric patients.
- The mechanism is hypothesized to involve changes in brain regions related to speech and vocalization.
- Potential pathways include effects on primary speech areas, subcortical tracts, and the vocal cords.
Implications:
- VNS may offer therapeutic benefits for communication disorders in encephalopathic children.
- This suggests broader applications for VNS in neurological conditions affecting speech.
- Further research is warranted to elucidate the neurobiological mechanisms underlying VNS-induced speech improvements.
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