Ketamine in the Brain (IMAGE) Michigan Medicine - University of Michigan Caption New research: When ketamine is used for general anesthesia, two connected parts of the cortex turn to 'isolated cognitive islands.' Credit University of Michigan Health System Usage Restrictions All articles are published under a Creative Commons Attribution 3.0 license. You are free to copy, distribute, adapt, transmit, or make commercial use of this work as long as you attribute the University of Michigan Health System as the original creator and include a link to this article. 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.