Relationship between excitatory and inhibitory changes in primary somatosensory cortex and somatosensory function of fingers following transcutaneous auricular vagus nerve stimulation of the left cymba concha

Relationship between excitatory and inhibitory changes in primary somatosensory cortex and somatosensory function of fingers following transcutaneous auricular vagus nerve stimulation of the left cymba concha - Relationship between excitatory and inhibitory changes in primary somatosensory cortex and somatosensory function of fingers following transcutaneous auricular vagus nerve stimulation of the left cymba concha

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000058542

Enrollment

Registered

2025-07-22

Start date

2025-08-21

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

healthy adults

Interventions

Stimulus condition: 25 hertz,300 microsecond, below pain threshold Stimulation time: 15 min The stimulation site: The left cymba concha Stimulus condition: 25 hertz,500 microsecond, below pain thres

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: We are looking for individuals who are interested in this research and are willing to participate voluntarily. We also invite students and graduate students enrolled in Niigata University of Health and Welfare to join us by e-mail.

Exclusion criteria

Exclusion criteria: Those with neurological or psychiatric diseases, those taking medication, and those with a history of external ear injury.

Design outcomes

Primary

Measure	Time frame
Somatosensory evoked potentials Paired-pulse inhibition Two-point discrimination threshold Autonomic nerve activity	—

Countries

Japan

Contacts

Public ContactKako Tanabe

Graduate School, Niigata University of Health and Welfare Institute for Human Movement and Medical Sciences

hwd24002@nuhw.ac.jp025-257-4445

Outcome results

None listed

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