Distinguishing Tics and Functional Tics Using Clinical Neurophysiological Techniques
Public ClinicalTrials.gov record NCT07137442. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Background: Tics are involuntary movements and vocalizations. Some tics are organic: They are related to diagnosed disorders. Sometimes tics have other causes, such as problems with how the brain and body send and receive messages. These are called functional tics. It can be difficult to tell the difference between these 2 types of tics. Doctors need to know more so they can make more accurate diagnoses. Objective: To learn more about the difference between functional and organic tics. Eligibility: Adults aged 18 to 80 years who have a tic that causes involuntary movements. Healthy volunteers with no tics are also needed. Design: Participants will have one 4-hour clinic visit. The visit may be done in 1 or 2 days. Participants will refrain from consuming alcohol or caffeine before the visit. They may have a physical exam. Participants will wear two types of sensors: Electromyography (EMG): Adhesive disks with sensors will be attached to the skin above some muscles. These disks will record electricity in the muscles as the participant moves. Electroencephalography (EEG): Sensors will be placed on the participant s scalp. The sensors may be adhered directly, or the participant may wear an electrode cap. The sensors will detect brain waves. Participants will rest while seated in a chair. Their involuntary tics will be monitored with the EMG and EEG. Then they will be asked to make movements to mimic their tics. Healthy volunteers will also rest; then they will be asked to perform movements that mimic tics. Participants will have their blink reflex tested. EMG sensors will be placed on the muscles near the eyes. Electrical pulses will be used to stimulate blinking. Participants will answer questionnaires about their tics and their health....
Study identification
- NCT ID
- NCT07137442
- Recruitment status
- Recruiting
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 75 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 18 Years to 80 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Sep 13, 2026
- Primary completion
- Jul 31, 2034
- Completion
- Jul 31, 2034
- Last update posted
- Sep 8, 2026
2026 – 2034
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institutes of Health Clinical Center | Bethesda | Maryland | 20892 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT07137442, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Sep 8, 2026 · Synced Sep 10, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT07137442 live on ClinicalTrials.gov.