Figure-ground segmentation Several studies have examined that in figure-ground segmentation processes, attention to certain regions tends to cause those regions to be perceived as closer to the observer (Huang & Pashler, 2009). In this experiment we propose that the effect of attention can be reversed and that the visual system chooses the interpretation based on the simplicity of the attended regions. The visual system has the ability to detect three-dimensional structures in the absence of mapping between properties. Stimuli will be presented with a variety of photographs on a color monitor. The second factor in this experiment will state that directing attention can also influence the choice of one structure over another in potentially ambiguous cases (Koffka, 1935 and Rubin, 1915 as cited by Huang & Pashler, 2009). Previous studies indicate that attention alters perception. This study will demonstrate that the simplicity of the visual stimuli presented will direct attention; in other words, participants will choose the simplest visual information as the visual focus. The main support for the hypothesis from the study conducted by Huang and Pashler (Huang & Pashler, 2009) indicated that participants reported the region frequented as being on the front line 89 percent of the time. Additionally, participants reported the simplest visual stimuli as the foreground object. Finally, when visual cues with abstract color cues were removed, participants' attention returned to the attended region. In a previous study coordinated by Kimchi and Peterson (Kimchi & Peterson, 2008), it was shown that figure-ground segmentation could occur without attention. The project included two displays, each of which presented a small...... medium of paper......and Displays. Perception and Psychophysics, 69, 382-392. Palmer, S. E. & Ghose, T. (2008). Extreme edges: a powerful clue for depth perception and organization of the figure-ground. Association for Psychological Science, 19(1), 77-84.Peterson, M. A. (1994). Object recognition processes can and do work before figure-ground organization. American Psychological Society, 3(4), 105-111.Rubin, E. (1958). Figure and terrain. In D. C. Beardslee & M. Wertheimer (Eds.), Readings in Perception (pp. 194–203). Princeton, NJ: Van Nostrand. (Original work published in 1915) Vecera, S.P., Flevaris, A.V., & Filapek, J.C. (2004). Exogenous spatial attention influences figure-ground assignment. Psychological Science, 15(1), 20-26. Vecera, S. P., & Palmer, S. E. (2006). Rooting the figure: attachment to the surface influences the figure-ground organization. Psychonomic bulletin and review, 13(4), 563-569.
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