Acute Effects of Cannabis on Cognition and Affect

Inclusion Criteria: * be 21 years of age or older * be fluent in English * use of cannabis at least once a week for at least one year * inhalation as their typical method of administration * be willing to abstain from cannabis on the day of their scheduled testing session Exclusion Criteria: * neurological conditions (e.g., neurodegenerative disorders, severe head injury, multiple concussions) * serious psychiatric conditions (e.g., psychosis, bipolar disorder) * family history of psychosis * intellectual disabilities or learning disorders (e.g., dyslexia) * chronic medical conditions that affect cognition or increase risk of cannabis use or exposure to cold water (e.g., heart disease, diabetes, peripheral neuropathy, history of fainting or seizures, fractures or wounds on both hands or wrists), * heart disease * BMI \> 34 * pregnant or lactating * use of illicit drugs in past 6 months * heavy use of alcohol (drinking \>4 drinks \>4 times per week) * nicotine/tobacco use * have experienced a severe adverse reaction to cannabis (e.g., panic attack, psychosis)