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. 2020 Apr 9;10:6147. doi: 10.1038/s41598-020-63169-3

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© The Author(s) 2020

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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Starvation abolishes the effect of PD2a1/b1 neurons on behavioral output without changing their odor responses. (a) Averaged traces of odor responses for fed (black) and starved (light blue) flies; no effect of starvation was observed. (b) Analysis of peak odor responses and response persistence for the designated odors in fed and starved flies. No statistical difference was observed (49 ≥ n ≥ 18 cells, from at least 5 different flies; see Supplementary Table S1 for statistical analysis). (c) Mean valence scores of starved flies for the designated odor. Gray, parental controls; light red, the experimental group at 32 °C; blue, the experimental control group at 23 °C. Starvation abolished the effect of silencing PD2a1/b1 neurons. (87 ≥ n ≥ 47 flies, *indicates a significant difference of the indicated group from all other groups according to a multiple comparison test. The lowest value of all multiple comparison tests is presented. ^#indicates a significant difference only between the two indicated groups. ^#p < 0.05, ^##p < 0.01, ^***p < 0.0005, ^####p < 0.0001, see Supplementary Table S1 for statistical analysis.).