Astronaut Kjell Lindgren Cognitive Tests (IMAGE) NASA/Johnson Space Center Caption NASA astronaut Kjell Lindgren works through 10 cognitive tests developed to test how spaceflight affects mental abilities. Credit NASA 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.