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via Behavior Research Methods (Browse Results) on 11/19/11
Abstract
To study perceptual grouping processes, vision scientists often use stimuli consisting of spatially separated local elements that, together, elicit the percept of a global structure. We developed a set of methods for constructing such displays and implemented them in an open-source MATLAB toolbox, GERT (Grouping Elements Rendering Toolbox). The main purpose of GERT is to embed a contour in a field of randomly positioned elements, while avoiding the introduction of a local density cue. However, GERT's modular implementation enables the user to create a far greater variety of perceptual grouping displays, using these same methods. A generic rendering engine grants access to a variety of element-drawing functions, including Gabors, Gaussians, letters, and polygons.
- Content Type Journal Article
- Pages 1-8
- DOI 10.3758/s13428-011-0167-8
- Authors
- Maarten Demeyer, Laboratory of Experimental Psychology, University of Leuven (K.U. Leuven), Tiensestraat 102, bus 3711, 3000 Leuven, Belgium
- Bart Machilsen, Laboratory of Experimental Psychology, University of Leuven (K.U. Leuven), Tiensestraat 102, bus 3711, 3000 Leuven, Belgium
- Journal Behavior Research Methods
- Online ISSN 1554-3528
- Print ISSN 1554-351X
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