| Paper: | PS-2B.8 | ||
| Session: | Poster Session 2B | ||
| Location: | H Fläche 1.OG | ||
| Session Time: | Sunday, September 15, 17:15 - 20:15 | ||
| Presentation Time: | Sunday, September 15, 17:15 - 20:15 | ||
| Presentation: | Poster | ||
| Publication: | 2019 Conference on Cognitive Computational Neuroscience, 13-16 September 2019, Berlin, Germany | ||
| Paper Title: | Dead Rectangles as a Stimulus for Perceptual Organisation Research | ||
| Manuscript: | Click here to view manuscript | ||
| License: |  This work is licensed under a Creative Commons Attribution 3.0 Unported License. |
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| DOI: | https://doi.org/10.32470/CCN.2019.1100-0 | ||
| Authors: | Heiko Schütt, Weiji Ma, New York University, United States | ||
| Abstract: | We describe dead rectangles, a new stimulus class for research on perceptual organisation. These stimuli are generated by randomly placing rectangles inside an image window, which allows for occlusion, surface properties and ambiguous stimuli. To show their utility we asked 14 observers to judge whether two points in a dead rectangle stimulus belong to the same rectangle or not. We find observers to perform around 70% correct and judge the points to belong to the same rectangle considerably more often than they do. Also, some pairs of points were consistently judged to belong to the same rectangle although they were not. The possible decompositions of one stimulus into rectangles form a tree, which can be used for formal analysis. These stimuli may allow research on perceptual organisation to move on to more natural conditions, while maintaining experimental control and a rigorous mathematical framework. | ||