Accession Number : ADA187444

Title :   Perception and Control of Simulated Self Motion.

Descriptive Note : Final rept. Apr 83-Mar 87,

Corporate Author : OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS

Personal Author(s) : Owen, Dean H ; Freeman, Scott J ; Zaff, Brian F ; Wolpert, Lawrence

PDF Url : ADA187444

Report Date : Nov 1987

Pagination or Media Count : 194

Abstract : This report includes three experiment sections. The first experiment tested sensitivity decreased with higher flow rates, and demonstrated that (a) preview effects led to adaptation, (b) sensitivity decreased with higher flow rates, and (c) sensitivity increased with higher optical texture densities and fractional loss. The second and third experiments examined the perception and control of change in forward speed and altitude, respectively. Results from the former indicated that higher levels of fractional loss led to enhanced control of a consistent speed, whereas high flow and/or edge rates interfered with performance. The control of altitude change was similarly affected by the levels of fractional loss, but the negative effect of flow rate occurred only in conditions of descending flight. Theoretical implications for the ecological approach to the study of perception and control and discussed. Keywords: Control, Ecological optics, Egomotion, Optical flow, Self-motion perception, Visual proprioception, Visual psychophysics, Visual simulation.

Descriptors :   *VISUAL PERCEPTION, *SPACE PERCEPTION, ALTITUDE, CONSISTENCY, CONTROL, DENSITY, ECOLOGY, EDGES, FLOW, FLOW RATE, HIGH RATE, MOTION, OPTICAL PROPERTIES, OPTICS, PERCEPTION, PROPRIOCEPTION, PSYCHOPHYSICS, RATES, SIMULATION, TEXTURE, VELOCITY, VISION

Subject Categories : Anatomy and Physiology
      Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE