Seeing and Perceiving 23 (2010) 241–261 brill.nl/sp Detecting Sudden Changes in Dynamic Rotation Displays J. Timothy Petersik ∗ and Rachael L. Thiel Ripon College, Department of Psychology, Ripon College, P.O. Box 248, Ripon, WI 54971, USA Received 17 September 2009; accepted 30 April 2010 Abstract Four experiments and controls were run in order to determine the ability of the visual system to detect slight changes in three-dimensional (3D) rotating stimuli in comparison to two-dimensional (2D) controls. A small number of observers (between 5 and 8) viewed computerized displays of pixel-defined transparent rotating spheres or circular patches of pixels drifting linearly in opposite directions. Halfway through the circuit of rotation a letter was briefly displayed and the rotation continued with some change introduced. Our results showed that for horizontal shifts of the stimulus on the X -axis, changes in the axis of rotation, and additions/deletions of pixels, observers were better at detecting the changes associated with 3D motion than 2D motion. There was no good 2D control for approaching and receding stimuli, but on the basis of other results it was concluded that 3D movement had no advantage. It is suggested that rotation in 3D is more readily monitored
Seeing and Perceiving (continuation of Spatial Vision from 2010 and continued as Multisensory Research from 2013) – Brill
Published: Jan 1, 2010
Keywords: ROTATION SIMULATIONS; CHANGE DETECTION; APPARENT MOVEMENT
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