Investigating how THC affects eye movement and thinking skills based on cannabis use history

Examining the Role of Tolerance on Dose-dependent Effects of Acute THC on Oculomotor and Cognitive Performance

NIH-funded research Johns Hopkins University · NIH-10665800

This study is looking at how different amounts of THC from cannabis affect thinking and eye movement skills in people who use cannabis in different ways, to help us understand how it might impact things like driving or working.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionJohns Hopkins University NIH-funded
Lab location1 site (Baltimore, United States)
Project IDNIH-10665800 on NIH RePORTER

What this research studies

This research examines how different doses of THC, the active component in cannabis, impact cognitive and oculomotor performance, particularly in individuals with varying levels of cannabis use. By utilizing advanced oculomotor assessments and machine learning techniques, the study aims to identify how THC impairment differs among users. Participants will undergo tests to measure their cognitive abilities and eye movements after THC administration, helping to understand the relationship between cannabis use and performance impairment. The findings could lead to improved methods for detecting THC impairment in real-world settings such as driving and workplaces.

Who could benefit from this research

Good fit: Ideal candidates for this research are individuals who use cannabis, particularly those with varying levels of tolerance to THC.

Not a fit: Patients who do not use cannabis or have never been exposed to THC may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to better detection methods for THC impairment, enhancing public safety and workplace health.

How similar studies have performed: Previous research has shown promising results in using oculomotor assessments to detect impairment from THC, indicating that this approach has potential for success.

Where this research is happening

Baltimore, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
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.