A system with some unique features for maintaining desired body temperature in anesthetized and/or immobilized...

We describe the design and unique features of a system for precisely regulating body temperature of anesthetized and/or immobilized small mammals during prolonged neurophysiological experiments. The system uses a flexible, insulated, charcoal cloth conducting blanket which can be intimately wrapped around the animal's body. The temperature of the blanket is continuously regulated by an electronic system which compares the animal's actual temperature with the desired temperature. The system can react to differences of 0.1 to 0.001 degrees C and introduces no recording artifacts. With modification the system may have clinical application.