Protocol and stimulation parameters
Definition
The stimulation site is the anatomical location where an electrode or device contact delivers electrical stimulation.
Aliases and abbreviations
electrode placement · stimulation location · application site
Editorial record
Published: August 25, 2026 · Reviewed: August 25, 2026
Expanded definition
A useful site description names the body region, side, and exact contact area. In non-invasive VNS this may mean a cervical location on the neck or a defined auricular region such as the tragus, cymba conchae, cavum conchae, or earlobe.
Site interacts with electrode geometry, skin contact, intensity, waveform, and individual anatomy. Two protocols using the same broad label can create different electrical fields and sensations.
The visible application location is not identical to the neural target. Target engagement requires independent evidence and cannot be inferred from placement or sensation alone.
What the term does not establish
Why the distinction matters
Precise site reporting is necessary for reproducibility, anatomical interpretation, and responsible transfer of evidence between studies and devices.
Main guide
A method-focused guide to stimulation locations, protocol variables, and interpretation limits.
Explore tVNS methodsRelated terms
Protocol and stimulation parameters
Stimulation methods
Stimulation methods
Safety and research
Measurement and interpretation
Anatomy
Editorial scope
This glossary entry supports general education. It does not diagnose, recommend treatment, or transfer findings from one VNS method, protocol, or device to another.