Eline Van Geert
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OCTA

the Order and Complexity Toolbox for Aesthetics

OCTA paper OCTA preprint OCTA Python toolbox OCTA Shiny app OCTA resources OCTA mailing list

Do individuals prefer stimuli that are ordered, complex, or striking the right balance between order and complexity? Earlier research mainly focused on the separate influence of order and complexity on aesthetic appreciation, or on rather specific types of order (i.e., balance or symmetry). Progress has also been limited by the lack of an easy way of creating reproducible and parametrically controlled stimulus sets, including both order and complexity manipulations. The Order & Complexity Toolbox for Aesthetics (OCTA), a Python toolbox currently under development, aims to fill this gap. It allows for the creation of stimulus patterns varying qualitatively and quantitatively in order and complexity, both based on unity and variety along multiple dimensions (e.g., position, shape, size, color, orientation) of the elements in the patterns. An additional benefit of OCTA is its flexibility: researchers with programming experience can use the available functions or specify additional functionality tailored to their own wishes, whereas researchers less familiar with programming can use the point-and-click interface that is provided.

Related publications

  • A systematic approach to study preferences for complexity at different levels of order

    Psychology of Aesthetics, Creativity, and the Arts · 2025
    Eline Van Geert, Astrid Warny, & Johan Wagemans

  • Multistable grouping beyond the dot lattice: Individual and contextual differences in interactions of global orientation and local shape

    Attention, Perception, & Psychophysics · 2025
    Elisabeth Van der Hulst, Eline Van Geert, & Johan Wagemans

  • Using Gibbs Sampling with People to characterize perceptual and aesthetic evaluations in multidimensional visual stimulus space

    Proceedings of the Annual Meeting of the Cognitive Science Society · 2024
    Eline Van Geert & Nori Jacoby

  • Prägnanz in visual perception and aesthetic appreciation: Interactions between stimulus, person, and context [Doctoral dissertation]

    Doctoral dissertation · 2023
    Eline Van Geert

  • The Order & Complexity Toolbox for Aesthetics (OCTA): A systematic approach to study the relations between order, complexity, and aesthetic appreciation

    Behavior Research Methods · 2023
    Eline Van Geert, Christophe Bossens, & Johan Wagemans

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