Thermal Behavior Neck Device (IMAGE) University at Buffalo Caption For the study, researchers used a custom-made device that was in direct contact with each participant's neck. One set of tubing was perfused with 93.2 degrees Fahrenheit water. The other series of tubes contained -4 degree liquid, but the flow of this liquid was controlled by a valve. Credit University at Buffalo Usage Restrictions For the positive portrayal of research at the University at Buffalo. 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.