Does Caffeine Facilitate Human Reward Learning Behaviors?

Launched by YU-SHIUAN LIN · Apr 12, 2022

Keywords

ClinConnect Summary

This clinical trial is exploring how caffeine affects our ability to learn from rewards. Researchers want to see if taking caffeine, either in a single dose or daily, can improve how we respond to rewards and learn new habits. Caffeine is a common substance that can change how our brain works by boosting signals related to pleasure and reward.

To participate in this study, individuals must be between 18 and 40 years old, in good health, and non-smokers. People who regularly consume very low or very high amounts of caffeine, pregnant or breastfeeding women, and those with certain health conditions or medications are not eligible. Participants can expect to take caffeine and then engage in tasks that measure their learning from rewards. This study is currently looking for volunteers, so if you're interested and meet the criteria, you could play a part in helping us understand more about how caffeine influences our learning processes.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Age ≥ 18 and ≤ 40
• • Clinically healthy
• • Non-smokers
• Exclusion Criteria:
• • Habitual caffeine intake \< 100 mg or \> 450 mg
• • Pregnant or lactating women
• • Women using hormonal contraceptives
• • BMI \< 18.5 or \> 29.9
• • Sleep disturbance or extreme chronotypes
• • Nicotine or recreational drug users
• • Depression, anxiety, psychosis, or neurologic disorders
• • Severe heart or cardiovascular diseases
• • Diabetes or metabolic diseases
• • Under chronic medications
• • Incapable to operate the tasks or comprehend the study information in German or English
• • Users of the Bopomo alphates utilized as stimuli in the reward learning tasks
• • Current enrolment in other clinical trials