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. 2020 Sep 25;14:576154. doi: 10.3389/fnbeh.2020.576154

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Copyright © 2020 Ferreiro, Amaro, Schmidtke, Sobolev, Gundi, Belliveau, Sirota, Grothe and Pecka.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Schematic of the experimental aSIT setup for gerbils. (B) Schematic representation (top view) of the aSIT_freq arena in the single island version for gerbils (background and target frequencies for gerbils were 20 kHz and 660 Hz). (C) Comparison for gerbil 1 of the percentage of trials finished with the percentage of trials which would have been finished by chance at each time point after the beginning of a trial (shadow areas correspond to 95% confidence interval); Left panel: 1st half of the 1st session; Right panel: 3rd session. (D) Percentage of successful trials relative to the chance level (as calculated in C at 60 s) for each gerbil (error bars correspond to the 95% confidence interval). Session 1: N_{Gerbil 1} = 66 trials, N_{Gerbil 2} = 55 trials; Session 2: N_{Gerbil 1} = 72 trials, N_{Gerbil 2} = 65 trials; Session 3: N_{Gerbil 1} = 56 trials, N_{Gerbil 2} = 61 trials. Inset: duration of successful trials for each gerbil in the two last training sessions, horizontal lines denote median (solid) and quartiles (dashed) of the distribution. Durations of correct trials per session are available in Supplementary Figure S2 (both for gerbils and for mouse lemurs). (E) Time to success in two consecutive successful trials was not correlated with geometric island distance in either gerbil. Pearson correlation, N_{Gerbil 1} = 89 pairs of trials, N_{Gerbil 2} = 68 pairs of trials. (F) Schematic of the experimental aSIT setup for mouse lemurs. Background and target frequencies for lemurs were 10 and 4 kHz, respectively. (G) Performance of two mouse lemurs in three consecutive days at the end of the training: percentage of successful trials relative to the daily chance level (as calculated in C; error bars correspond to the 95% confidence interval). Session 1: N_{Lemur 1} = 32 trials, N_{Lemur 2} = 48 trials; Session 2: N_{Lemur 1} = 43 trials, N_{Lemur 2} = 43 trials; Session 3: N_{Lemur 1} = 44 trials, N_{Lemur 2} = 41 trials. For performance levels during intermediate training sessions (see Supplementary Figure S3).