From excerpt on photo: A child is given a new type of hearing test in the University of Virginia's Speech and Hearing Center. Dr. Malcolm B. McCoy, right, who is director of the auditory laboratory, handles the controls of the sensitive testing apparatus while a graduate student assistant, Molly Lou Meffert, left, of Cedar Rapids, IA, keeps the child's attention with a toy. The watchful mother holds the earphone with which the test will be made. The child's response is measured electrically in this PGSR (psychogalvanic skin resistance) test which works on the principle of the lie detector.
Special Collections, University of Virginia Library, Charlottesville, Va.