Accession Number : AD0283943

Title :   MULTI-FIELD ELECTRONIC APPARATUS FOR STUDIES OF VISUAL PERCEPTION

Corporate Author : AEROSPACE MEDICAL RESEARCH LABS WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : KOLERS,PAUL A.

Report Date : JUN 1962

Pagination or Media Count : 1

Abstract : An apparatus is described that precisely controls intensity, duration, and order of firing of gas-discharge lamps. It can be used to illuminate visual stimulus objects for either long or short exposures, and in different viewing modes. Various methods of reducing the onset variability usually encountered with gasdischarge lamps also are described. Although designed primarily for the study of contour formation and visual masking, the apparatus can be used wherever a controlled sequence of separate stimulus presentations is required, as in studies of apparent movement, critical flicker frequencies, and time-dependent series. (Author)

Descriptors :   *TACHISTOSCOPES, DESIGN, ELECTRONIC EQUIPMENT, GAS DISCHARGES, INSTRUMENTATION, INTENSITY, TEST METHODS, TIME, VISION

Distribution Statement : APPROVED FOR PUBLIC RELEASE