Section of a mouse brain (IMAGE) Université de Genève Caption Section of a mouse brain showing in red the circuit that reinforces the behaviour, in green the circuit that reinforces the decision to continue. If the green projection is very active, the mice self-stimulate their red projection despite negative consequences. They become compulsive. Coupe d’un cerveau de souris montrant en rouge le circuit qui renforce le comportement, en vert celui de la prise de décision de continuer. Si la projection verte est très active, les souris autostimulent leur projection rouge en dépit de conséquences négatives. Elles deviennent compulsives. Credit © UNIGE Usage Restrictions None License Licensed 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.