Near-InfraRed Spectroscopy of Auricular Stimulation
Neural Responses to Tactile Auricular Stimulation Measured by Functional Near-infrared Spectroscopy in Pain-free Volunteers
University of Pittsburgh
80 participants
Aug 12, 2025
INTERVENTIONAL
Conditions
Summary
This is a single-visit non-invasive study of healthy volunteer subjects. Brain activity will be measured with infra-red light sensors attached to a cap worn on the head, while both ears are gently stimulated with plastic filaments.
Eligibility
Inclusion Criteria1
- Age of at least 18 years
Exclusion Criteria7
- frequent or chronic pain requiring the use of pain-relieving medications more than twice per week, on average, in the last 3 months,
- history or symptoms of neuropathy,
- active lesions or skin disruptions to either ear,
- recent (\< 3 mo) illicit drug use,
- history of substance misuse/abuse,
- current or recent (\<1 month) opioid or marijuana use, and
- current regular use of psychoactive prescription medications
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Interventions
Different points on both ears will be repeatedly stimulated with a plastic filament. This will be felt, but not be painful and should not result in lasting irritation.
Locations(1)
View Full Details on ClinicalTrials.gov
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NCT06825364