Self-organized pattern formation: experimental dissection of motion detection and motion integration by variation of attentional spread

Vision Research
Howard S HockGregor Schöner

Abstract

The formation of global motion patterns depends on the stimulus activation of local motion detectors as well as integrative excitatory and/or inhibitory interactions among the activated detectors. The counterphase row-of-elements [Vis. Res. 34 (1994) 1843] is an ideal stimulus for examining the relationship between the activational/energizing effect of the stimulus and interaction among the activated detectors. This is because the formation of the alternative unidirectional and oscillatory motion patterns for this stimulus requires the stimulation of local motion detectors, but there is no information in the stimulus that specifies either of the patterns. Their formation depends instead on the relative contributions of excitatory and inhibitory interactions to detector activation; the temporal patterns are self-organized. Broadly spread attention affects motion integration by changing the balance of excitatory versus inhibitory interactions, increasing the perception of unidirectional compared with oscillatory motion. (It likewise increases the perception of group compared with element motion for the Ternus stimulus.) There is, however, little if any effect of attentional spread on the luminance contrast required for the percep...Continue Reading

References

Jan 1, 1983·Vision Research·A J van Doorn, J J Koenderink
Dec 9, 1982·Nature·E H Adelson, J A Movshon
Apr 1, 1980·Perception & Psychophysics·A J Pantle, J T Petersik
Nov 1, 1994·Visual Neuroscience·H R Wilson, J Kim
Sep 28, 1999·Perception & Psychophysics·P Kramer, M Rudd
Aug 28, 2001·Perception & Psychophysics·L A GilroyA Ploeger

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Citations

May 26, 2005·Perception & Psychophysics·Sang Chul Chong, Anne Treisman
Oct 18, 2008·Perception & Psychophysics·Sang Chul ChongAnne Treisman
May 12, 2004·Vision Research·Mitsuhiko Hanada
May 20, 2004·Vision Research·Lee A Gilroy, Howard S Hock
Dec 3, 2011·Perception·Yaffa Yeshurun, Elisabeth Hein
Jan 18, 2018·Attention, Perception & Psychophysics·Nicolas Davidenko, Nathan H Heller

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