McMullin, Dianne Lynn2014-03-142014-03-141990etd-04142009-040711http://hdl.handle.net/10919/42089The line-of-sight angle (LOSA) was investigated for a simple tracking task. The distance from the eyes of the subject to the image was varied through the use of optical lenses. The subject was seated in a chair with 5 different back angles: 90 degrees, 111.6 degrees, 125 degrees, 158.5 degrees, and 177.1 degrees. No significant difference in the selection of LOSA was found between image distances of .5 meters, 1 meter, 2 meters, and infinity. The subjects' selection of LOSA was affected by the change in seat inclination angles.viii, 56 leavesBTDapplication/pdfenIn CopyrightLD5655.V855 1990.M435Human engineering -- ResearchThesishttp://scholar.lib.vt.edu/theses/available/etd-04142009-040711/