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. 2018 May 23;285(1879):20172770. doi: 10.1098/rspb.2017.2770

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© 2018 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 3. — Averaged PSEs of the psychometric functions fitted to data of each individual participant in experiment 2. Error bars represent standard errors. (Online version in colour.)