MedicalResearch.com Interview with: Joshua Gowin PhD Assistant Professor, Radiology Anschutz Medical Campus University of Colorado  MedicalResearch.com: What is the background for this study? Response: Many people want to know how cannabis affects their brain and cognitive abilities. Previous studies have shown that cannabis use can impair learning and verbal memory function. Some evidence has shown that cannabis use is associated with smaller volume of areas of the prefrontal cortex. Our study investigated how cannabis use is associated with brain function. We examined brain function across 7 tasks in 1,000 adults. 88 of them had used cannabis over 1,000 times in their lives. (more…)