Effect of brain stimulation on cognitive control

Causal Role of Delta and Theta Oscillations in Hierarchical Cognitive Control

Not applicable Interventional Florida State University · NCT06734377

This study is testing if a special type of brain stimulation can help healthy people improve their thinking and decision-making skills.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment50 (estimated)
Ages18 Years to 35 Years
SexAll
SponsorFlorida State University Academic / other
Locations1 site (Tallahassee, Florida)
Trial IDNCT06734377 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates how rhythmic transcranial magnetic stimulation (TMS) at delta and theta frequencies affects cognitive control in healthy individuals. The study involves two tasks designed to assess hierarchical cognitive control, where participants respond to stimuli based on memorized rules and feature comparisons. By modulating neural oscillations through targeted stimulation, the research aims to enhance cognitive performance and understand the underlying neural mechanisms involved in cognitive tasks.

Who should consider this trial

Good fit: Ideal candidates are healthy right-handed individuals aged 18 to 35 with normal or corrected-to-normal vision.

Not a fit: Patients with neurological disorders, a history of seizures, or those currently receiving treatment for ADHD/ADD may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to new non-invasive methods for enhancing cognitive performance in healthy individuals.

How similar studies have performed: Previous studies have shown that rhythmic TMS can effectively modulate neural oscillations, suggesting potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Participants must be between the ages of 18 and 35.
* Must be able to provide informed consent.
* Must have normal or corrected-to-normal vision.
* Participants must be right-handed.
* Willingness to comply with all study procedures and availability for the study duration.
* Proficiency in speaking and understanding English.

Exclusion Criteria:

* Must not be color-blind
* Current treatment for ADHD/ADD.
* History of neurological disorders, including but not limited to the following specified conditions
* Epilepsy or seizures (excluding childhood febrile seizures).
* Dementia, Parkinson's disease, multiple sclerosis, cerebral aneurysm, or brain tumors.
* History of stroke or traumatic brain injury.
* Medical conditions or treatments that could interfere with study participation (e.g., unstable cardiac disease, HIV/AIDS, malignancy, or renal impairment).
* Prior brain surgery or presence of brain devices/implants (e.g., cochlear implants or aneurysm clips).
* Females who are pregnant or breastfeeding.
* Use of specific medications, including but not limited to ADHD medications or benzodiazepines, which may interfere with EEG measurements or task performance
* Any condition that, in the opinion of the investigator, increases risk or hinders full compliance with the study.

Where this trial is running

Tallahassee, Florida

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 Rhythmic Transcranial Magnetic Stimulation Effect on Hierarchical Cognitive ControlRhythmic Transcranial Magnetic StimulationHierarchical Cogntive Control
Last reviewed 2026-06-13 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.