An inexpensive, nondedicated, automated pupillometric measurement system

A new component pupillometric system is presented. This system utilizes a commercially available microcomputer digital analyzer to measure and record pupillary diameter from a videotape record. The principal advantages of this system over the conventional electronic pupillometer are its low cost, portability, and the nondedicated nature of its components. This provides the psychophysiological investigator with a much more flexible and adaptable pupillometric system than has heretofore been available.