Ear stimulation and pupil responses
This study investigates how stimulation of a nerve near the ear affects pupil responses in older adults and Parkinson's.
Testing a treatment or activity · Study reference: DRKS00037865
Plain-language introduction written with AI from the registry; not independently checked by a clinician. Read the original details below ↓
This registry record was last updated over six months ago, or its update date is missing. Recruitment may have changed. Confirm with the team before making plans.
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Looking for volunteers
- Start (reported date)
- 2025-10-03
Planned dates can move. A study finishing does not tell us when a paper will be published.
No results summary has been confirmed in the registry records we imported. See connected papers below; we keep checking after recruitment ends.
Changes we have recorded
- 2026-10-11 — recruiting
These are dates we observed a change, not necessarily the dates it happened.
Papers connected to this study
No connected paper has been found yet. The tracker checks the growing library for study identifiers and registry-linked publications.
Who can join?
Age 18 years and over · Ask the team who can join
These are starting points, not the full rules. The research team can tell you whether the study is right for your situation.
Read all the rules for taking part
Sex eligibility reported by registry: all
Full study name & original research details
Official study title
Effects of transcutaneous auricular stimulation on pupil response in older adults and people with Parkinson's disease - NORA
Short title used by the registry
Effects of transcutaneous auricular stimulation on pupil response in older adults and people with Parkinson's disease
Original description
Conditions reported: Individuals with Parkinson's disease, group of healthy older individuals
Registry records for this study
Records are joined using registration identifiers. Titles alone do not establish that two studies are the same.
- German Clinical Trials Register · DRKS00037865 ↗ — Recruiting; WHO ICTRP processed 2025-11-24; checked 2026-10-14
- Study type
- Interventional
- Interventions
- Group 1: Transcutaneous auricular vagus nerve stimulation (taVNS), true stimulation (3 seconds of stimulation and 12 seconds of pause over a total duration of 10 minutes during pupil measurement) in both groups (healthy older, Parkinson) Group 2: Transcutaneous auricular vagus nerve stimulation (taVNS), sham stimulation (3 seconds of stimulation and 12 seconds of pause over a total duration of 10 minutes during pupil measurement) in both groups (healthy older, Parkinson)
- Phases
- N/A
- Sponsor
- Universitätsklinik für Neurologie, Evangelisches Krankenhaus Oldenburg
- Start date reported by registry
- 2025-10-03 (reported)
Registry updated: Not reported · Status last verified by the registry submitter: Not reported
Registry records retrieved 2026-10-14 (UTC). Individual records may have older updates. Recruitment and eligibility must be confirmed with the study team.
Contact the research team
Public study contacts supplied to the registry. Ask whether recruitment is still open and what participation involves.
Karsten Witt · +49(0)441 236 649 · karsten.witt@uni-oldenburg.de
Study locations
Site status can differ from overall study status. “Status not reported” means local availability needs confirmation. Remote participation and travel arrangements must be checked with the team.
Facility not reported
Germany
Status not reportedThe original descriptions and participation rules come from the registry. Participation is voluntary and does not guarantee benefit.