Brain Connection Model (IMAGE) University of North Carolina Health Care Caption An illustration showing changes in brain communication in rats after periods of cocaine abstinence. Lines between the images indicate increased or decreased connectivity after 1 day and 30 days without the drug, with red lines representing areas with more connectivity and green lines showing less connectivity over time. Credit Hsu et al (2024) Usage Restrictions Credit must be given to the creator. No derivatives or adaptations of the work are permitted. License CC BY-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.