The Elevated Plus Maze Test (IMAGE) Kumamoto University Caption This test uses a mouse's natural preference to stay in dark and narrow places (closed arms). The longer a mouse spends in the open areas (open arms) and the more distance it travels, the more its anxiety level is thought to decrease. Credit Dr. Yuki Kurauchi Usage Restrictions This image may only be used in conjunction with the accompanying release, or stories written about the work described in the release with reference to the original work. 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.