Research Discovers How Marijuana Affects the Way the Brain Processes Emotional Information (video) University of Western Ontario Share Print E-Mail Loading video... Caption Neuroscientist Steven Laviolette of the Schulich School of Medicine & Dentistry at the University of Western Ontario has identified the brain pathway responsible for the effects of drugs like marijuana on how the brain processes emotional information. This may also explain evidence of a link between heavy marijuana use and the increased risk of developing schizophrenia. Credit The University Of Western Ontario Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.