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. 2019 Feb 28;9:3055. doi: 10.1038/s41598-019-38833-y

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© The Author(s) 2019

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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.

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Brain areas showing stronger activation during HiRe than LoRe trials. Results are shown on inflated cortical surfaces (gyri: light gray; sulci: dark gray). The comparisons (Welch’s v test) were performed in surface space across 1^st level contrast parameter estimates and permutation inference was used to assess statistical significance (red clusters; HiRe vs. baseline and LoRe vs. baseline contrast parameter estimates, the runs of each monkey were treated as a permutation and variance group to accommodate heteroscedasticity, initial cluster-forming Z threshold 2.6, cluster-corrected P < 0.05). Note that the same P-value is attributed to the whole cluster in the PALM analysis, so differential P-value responses mapped to the brain should not be expected. Abbreviations: D dorsal, V ventral, A anterior, P posterior.