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OBJECT‐MOTION DETECTION AFFECTED BY CONCURRENT SELF‐MOTION PERCEPTION: APPLIED ASPECTS FOR VEHICLE GUIDANCE
Author(s) -
Probst Thomas,
Krafczyk Siegbert,
Brandt Thomas
Publication year - 1987
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1987.tb00748.x
Subject(s) - headway , computer vision , perception , stimulus (psychology) , motion perception , artificial intelligence , motion (physics) , computer science , detection threshold , visual perception , motion detection , psychology , simulation , cognitive psychology , real time computing , neuroscience
— Thresholds and response times for object‐motion detection are significantly raised during concurrent real or visually induced self‐motion perception. This was demonstrated by standardized laboratory experiments in which subjects had to react to a suprathreshold visual stimulus (1°‐light spot moving with 5°/s speed) under different stimulus conditions of simultaneously perceived self‐motion. Elevated response times (mean elevation factor: 3.27) were also obtained for the detection of changes in inter‐vehicle distance (headway) under real road conditions with the simultaneous involvement of self‐and object‐motion perception compared to a corresponding (object‐motion perception) simulation in the laboratory without any self‐motion. With regard to vehicle guidance, existing concepts of safe stopping distances, which depend upon adequate detection of a collision course and the corresponding reaction times, have to be recalculated.