Investigating how transcranial direct current stimulation works

Understanding the Neural Mechanisms Behind Transcranial Direct Current Stimulation

Not applicable Interventional KU Leuven · NCT04577677

This study is testing how a brain stimulation technique called tDCS works by comparing it to another method to see if it can help treat neurological and psychiatric disorders.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment130 (estimated)
Ages18 Years to 40 Years
SexAll
SponsorKU Leuven Academic / other
Locations1 site (Leuven, Vlaams-Brabant)
Trial IDNCT04577677 on ClinicalTrials.gov

What this trial studies

This study aims to explore the neural mechanisms involved in transcranial direct current stimulation (tDCS), a non-invasive technique that applies direct current through scalp electrodes. Participants will undergo three different stimulation conditions: active, sham, and control, with the control involving the application of an anesthetic cream to numb the scalp nerves. The research will compare the effectiveness of tDCS with peripheral nerve stimulation to better understand these mechanisms. The findings could lead to advancements in non-invasive neuromodulation therapies for treating various neurological and psychiatric disorders.

Who should consider this trial

Good fit: Ideal candidates are individuals in good general health without a history of neurological or psychiatric disorders.

Not a fit: Patients with epilepsy, migraines, or those who are pregnant will not benefit from this study.

Why it matters

Potential benefit: If successful, this research could lead to more effective non-invasive treatments for neurological and psychiatric conditions.

How similar studies have performed: While the mechanisms of tDCS are being actively researched, this specific approach to understanding its neural mechanisms is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* good general health

Exclusion Criteria:

* Epilepsy or family history of epilepsy
* Migraine
* Allergic to lidocaine or benzocaine
* Pregnant
* History of or currently suffering from:
* neurological diseases
* psychiatric diseases, depression or anxiety (Annex B and Annex C)
* History of:
* brain surgery
* brain thrombosis
* cerebral hemorrhage
* severe head trauma
* meningitis
* long period of loss of consciousness (\> 1 hour)
* Metal parts in the head or upper body:
* Defibrillator, implanted medication pump
* Metal prosthesis in ear, hart, …
* Deep brain stimulator
* Coronary bypass or intracranial or aneurysm clips (brain arteries, aorta, etc.)

Where this trial is running

Leuven, Vlaams-Brabant

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions tDCS Mechanisms
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.