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. 2017 Sep 12;7:11279. doi: 10.1038/s41598-017-11802-z

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© The Author(s) 2017

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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Thermal manipulation and perceptual measures. Each session consisted of two alternations of 10-min heating and 10-min cooling phases; the session began with the heating phase (heating first) for 18 subjects and with the cooling phase (cooling first) for 13 subjects (a). Corresponding average time-series data for the air temperature in the canopy (b) and two subjective measures (i.e., sensation and comfort ratings: (c and d) respectively) are shown separately for the heating first (solid line) and cooling first (dotted line) groups. Error bars indicate standard deviations.