Nuria de Zavalia (IMAGE) Concordia University Caption Nuria de Zavalia: “By discovering sexually dimorphic mechanisms, addiction treatment specialists could ultimately use this knowledge to develop sex-based treatment.” Credit Nuria de Zavalia Usage Restrictions None License Original content 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.