Electrococleography
Dr. Hallowell Davis, my Professor of Neurophysiology, was the father of electrical response audiometry. In 1955 he invited Jerome C. Cox to join the Research Department of the Central Institute for the Deaf as an acoustic engineer, and pointed him in the direction of an average response calculator to detect electroencephalographic responses. With the help of his student Maynard Engebretson, Jerry Cox designed and constructed a special digital computer that was named HAVOC – Histogram, Average and Ojive Calculator, which started electric response audiometry. He also developed methods for bioelectric signals, mathematical analysis of the averaging process and sample statistics of the evoked responses. Jerry Cox eventually became the Chairman of the Computer Laboratories of Washington University in Saint Louis. When I visited Saint Louis in 1964, Dr. Davis was already recording the vertex potentials of the CID children. These children knew the researchers, who always treated them k