Elucidating the effects of transcutaneous stimulation of the auricular vagus nerve on visual perception and visuomotor performance

Elucidation of the effects of transcutaneous auricular vagus nerve stimulation on improving visual perception and visuomotor function

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-jRCT1050250266

Enrollment

100

Registered

2026-03-31

Start date

2026-05-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Visual perception and visuomotor function in healthy individuals Visual perception, Visuomotor function, Transcutaneous auricular vagus nerve stimulation (taVNS), Neurostimulation

Interventions

Transcutaneous auricular vagus nerve stimulation (taVNS) will be applied to the auricular branch of the vagus nerve using a non-invasive electrical stimulation device. Stimulation parameters (intensit

Vagus Nerve Stimulation

Transcutaneous auricular vagus nerve stimulation, Vagus nerve stimulation, Electrical stimulation, Neuromodulation

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Adults aged 18 to 65 years who provide written informed consent Healthy individuals able to perform visual perception and visuomotor tasks Individuals who can understand the study procedures and follow instructions Individuals without marked skin problems around the auricular stimulation site

Exclusion criteria

Exclusion criteria: Individuals with severe visual impairment that interferes with task performance Individuals with neurological or psychiatric disorders that may affect study outcomes Individuals using implanted electronic medical devices such as pacemakers Individuals with skin lesions, dermatitis, or infection around the auricular stimulation site Individuals judged inappropriate for participation by the investigator for safety reasons Pregnant women or individuals who may be pregnant, if applicable

Design outcomes

Primary

Measure	Time frame
Change in performance on visual perception and visuomotor tasks, including reaction time and accuracy before and after stimulation.	—

Secondary

Measure	Time frame
Detailed performance metrics in visual perception tasks (e.g., discrimination accuracy, decision time) Motor performance in visuomotor tasks (e.g., error, trajectory deviation) Subjective measures (e.g., discomfort, fatigue using visual analog scale) Occurrence of adverse events	—

Contacts

Public ContactSatoshi Shimegi

Center for Education in Liberal Arts and Sciences

shimegi.satoshi.celas@osaka-u.ac.jp+81-6-6850-6984

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026