The motion-induced position shift depends on the perceived direction of bistable quartet motion

Vision Research
Won Mok Shim, P Cavanagh

Abstract

Motion can influence the perceived position of nearby stationary objects (Nature Neuroscience 3 (2000) 954). To investigate the influence of high-level motion processes on the position shift while controlling for low-level motion signals, we measured the position shift as a function of the motion seen in a bistable quartet. In this stimulus, motion can be seen along either one or the other of two possible paths. An illusory position shift was observed only when the flashes were adjacent to the path where motion was perceived. If the flash was adjacent to the other path, where no motion was perceived, there was no illusory displacement. Thus for the same physical stimulus, a change in the perceived motion path determined the location where illusory position shifts would be seen. This result indicates that high-level motion processes alone are sufficient to produce the position shift of stationary objects. The effect of the timing of the test flash between the onset and offset of the motion was also examined. The position shifts were greatest at the onset of motion, then decreasing gradually, disappearing at the offset of motion. We propose an attentional repulsion explanation for the shift effect.

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Citations

May 31, 2012·TheScientificWorldJournal·Andrea Pavan, Rosilari Bellacosa Marotti
Jan 18, 2005·Experimental Brain Research·David Whitney, Melvyn A Goodale
Jan 24, 2013·PloS One·Yuki Yamada, Takahiro Kawabe
Apr 8, 2011·Attention, Perception & Psychophysics·Takahiro Kawabe
Sep 30, 2010·Vision Research·Eiji WatanabeAkiyoshi Kitaoka
Sep 22, 2009·Vision Research·Rumi Hisakata, Ikuya Murakami
May 12, 2005·Current Biology : CB·David Whitney
Dec 20, 2005·Vision Research·David W Bressler, David Whitney
Jun 16, 2006·Vision Research·Won Mok Shim, Patrick Cavanagh
Jul 26, 2005·Vision Research·Won Mok Shim, Patrick Cavanagh
Aug 5, 2008·Vision Research·Andrea Pavan, George Mather
Mar 29, 2011·Psychological Science·Fuminori Ono, Katsumi Watanabe
Apr 20, 2017·Frontiers in Neuroscience·Peter J KohlerPeter U Tse

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