(IMAGE) Genomic Press Caption Etienne Sibille, PhD, University of Toronto and The Centre for Addiction and Mental Health, Canada Credit Etienne Sibille, PhD Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.