MUSE Project – Past Marijuana Use

STUDY BASICS

Are you an 18-25 year old male? Have you tried marijuana, but have not used marijuana in the past 6 months? If so, you may be able to take part in a research study to help learn more about the effects of marijuana use on health, attention, and memory in young adults. Compensation provided.

STUDY PURPOSE

Research into the effects of marijuana has produced mixed results. The purpose of this study is to find out if smartphone sensors and wearable activity trackers can be used to study the effects of marijuana use on the health, attention, and memory of young adults. Researchers hope their findings may lead to better ways to study the effects of marijuana in the future.

COULD THIS STUDY BE RIGHT FOR YOU?

• Males aged 18-25
• Tried marijuana, but have not used marijuana in the past 6 months
• Have an iPhone
• Not seeking treatment to stop smoking marijuana
• Not receiving any other substance use disorder treatment
• Not taking any of the following medications that affect heart rate: - Stimulants such as Adderall, Ritalin, or Concerta - Antidepressants - Bronchodilators for asthma such as Qvar, Pulmicort, or Flovent - Thyroid hormone replacement therapy

WHAT PARTICIPANTS CAN EXPECT

Participation involves an initial 3 hour assessment that will include an interview, questionnaires, computer tasks, a saliva drug test, and wearing a wristband to track your heart rate. Researchers will also install 3 applications (apps) on your mobile phone so that they can collect data for the study. After the baseline assessment, participants will use the app to respond to daily surveys and to complete tasks each day for up to 30 days, and wear a wristband device to track heart rate each day for up to 30 days. After the daily data collection, participants will return to the research office to do the wrap-up visit (about 1-hour total), which includes a 20 minute user experience interview, returning the wristband, and removing the apps from your phone.