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. 2021 Jan 8;83(3):1312–1328. doi: 10.3758/s13414-020-02174-0

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 8 — Trial examples for Experiments 3–5. Paradigm like Experiments 1–2, with RSVP sequence (100 ms/shape + 100-ms ISI) followed by a two-alternative forced-choice (2-AFC) membership test. (a) Experiment 3. One change/stimulus from the possible three: general rotation, local point rotation, local radius change (IR increase or OR decrease). (b) Experiment 4. Descendants created only by local radius changes (IR increase or OR decrease). (c) Experiment 5. Symmetric changes for each two descendants included in the RSVP sequence, so that the sequence mean equals the ancestor base. Only local radius changes (IR increase/decrease; OR increase/decrease). In Experiment 5, trials where the ancestor was a sequence member, RSVP had nine stimuli; where not a member, RSVP had eight stimuli