The SEAS Study: Sensory Engagement and Activation During Noninvasive Stimulation

May 18, 2026 updated by: University of Minnesota
Early feasibility study to establish quantitative physiological markers correlated with noninvasive stimulation.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

This pilot early feasibility study in healthy participants is intended to establish quantitative physiological markers of cortical and autonomic modulation evoked by noninvasive electrical and/or ultrasound stimulation of the nervous system.

Study Type

Interventional

Enrollment (Estimated)

40

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • United States
    • Minnesota
      • Minneapolis, Minnesota, United States, 55455
        • M Health Clinical Research Unit
        • Contact:
      • Minneapolis, Minnesota, United States, 55455
        • M Health Clinics and Surgery Center and satellite Neurology Clinic locations
        • Contact:
      • Minneapolis, Minnesota, United States, 55455
        • Translational Neurotechnology (TNT) Lab
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Able to provide written informed consent in English.
  • Willing and able to complete study procedures (e.g., ~1-hour sessions with non-invasive recordings, ~3-hour visit).

Exclusion Criteria:

  • History of neurological disorders (e.g., epilepsy, migraines) or psychiatric conditions requiring medication.
  • Active implanted medical devices (e.g., pacemakers, cochlear implants) or metal in the neck/forearm that could interfere with stimulation or recordings.
  • Skin conditions or open wounds at stimulation sites (cervical neck, forearm).
  • Women who are pregnant or breastfeeding.
  • Current use of medications affecting autonomic or cortical function (e.g., beta-blockers, sedatives).
  • Inability to sit still for recordings or understand instructions (e.g., due to severe vision/hearing impairment).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Acute electrical stimulation session versus no stimulation (sham).
Device: External electrical stimulation
Electrical stimulation
Experimental: Acute ultrasound stimulation session versus no stimulation (sham).
Device: Ultrasound stimulation
USS

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change From Baseline in HD-EEG Power Spectrum Magnitude After Active Versus Sham Stimulation
Time Frame: Baseline and post-stimulation assessment during the study visit, approximately 3 hours.
Change from baseline in power spectrum magnitude will be calculated from high-density electroencephalography recordings in standard EEG frequency bands. The primary comparison will be the within-participant difference in change from baseline between active stimulation and sham stimulation conditions.
Baseline and post-stimulation assessment during the study visit, approximately 3 hours.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Minnesota

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

May 1, 2026

Primary Completion (Estimated)

July 1, 2027

Study Completion (Estimated)

February 1, 2028

Study Registration Dates

First Submitted

March 26, 2026

First Submitted That Met QC Criteria

May 18, 2026

First Posted (Actual)

May 26, 2026

Study Record Updates

Last Update Posted (Actual)

May 26, 2026

Last Update Submitted That Met QC Criteria

May 18, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • STUDY00027691

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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