Cognitive Testing (IMAGE) Washington State University Caption Research assistants Samantha Riedy, Regan Permito, and Beth Lewis (front to back) review a cognitive performance test while preparing for a sleep deprivation study in the laboratory at WSU Spokane. The wires on the table are attached to a subject's fingers to measure skin conductance, which provides a measure of the salience of information during decision making and offers insight into cognitive flexibility impairment. Credit Washington State University Spokane photo 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.