Vagus Nerve Relief · 2026-10-04 · 0:47

Vagus Stimulation Study vs Sham

Two synthetic hosts, Wren and Ash, on the tracker's current state. The script was checked claim by claim against the tracker page and the cited sources below; every claim carries a verbatim quote.

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Wren A vagus stimulation trial beat sham on focus after mental overload.

Ash 62 people got 30 minutes of 25 Hz stimulation through the ear, or a fake version. After heavy cognitive load, the real thing cut their conflict effect and switch cost.

Wren So less slowdown when cues clash or tasks change. And that matters, because this field mostly runs on vendor claims and open-label pilots, where everyone knows it's real.

Ash But a systematic review found no real difference from sham for depression, so results depend on the condition.

Wren And it's one study, so grain of salt. The tracker calls these studies early-stage.

Ash Credible but narrow, not a verdict change. Full tracker's at DreamLab Research.

Sources
  1. The tracker page
  2. Frontiers | Transcutaneous Vagus Nerve Stimulation May Enhance Only Specific Aspects of the Core Executive Functions. A Randomized Crossover Trial
  3. Frontiers | Impact of transcutaneous auricular vagus nerve stimulation (taVNS) on cognitive flexibility as a function of task complexity

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