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. Author manuscript; available in PMC: 2022 Feb 19.
Published in final edited form as: J Neurosci Methods. 2020 Oct 14;348:108970. doi: 10.1016/j.jneumeth.2020.108970

Fig 4: Reproducibility of flight behavior and example echolocation traces.

Fig 4:

(A-B) Flight trajectories towards the targets for a typical example session. Trials are separated into correct (top) and incorrect (bottom) trials. Light intensity percentage of each trial is color coded (see Material and Methods for values). Note the reproducibility of flight trajectories independent of the approached target, light intensity or reward outcome. The same example session is shown in the panels (C-E), where the trajectories are plotted in time and separated by spatial dimension (X, Y and Z). Correct and incorrect trials are green and magenta, respectively. (F) Comparisons of the 3D Euclidean distances between trials grouped into same or different target (Material and Methods). Shown is the mean and standard error values for each window as a function of distance to the target. The standard errors are very small and therefore barely visible in the plot. Target identity had an effect at a global level and also on trajectory itself (linear mixed model, p = 0, LRStat = 5.65x105, ΔDF = 1, estimate of fixed effects coefficient (95% CI) of −1415.8 for same or different target and p = 0, LRStat = 3.38x105, ΔDF = 1, estimate of fixed effects coefficient (95% CI) of 100.8 for the interaction). (G) Same as ‘F’ but comparing same target trials of high intensity (80% and more) with each other or low (less than 80%) with any intensity trials (different; Material and Methods). Light intensity had an effect at a global level and also on trajectory itself, but this effect was much smaller compared to the target identity effect (linear mixed model, p = 0, LRStat = 845.9, ΔDF = 1, estimate of fixed effects coefficient (95% CI) of 33.5 for intensity effect and p = 0, LRStat = 1258.1, ΔDF = 1, estimate of fixed effects coefficient (95% CI) of −8.8 for the interaction). Note the small Euclidean distances for the same target trial comparisons indicating a highly stereotyped and reproducible spatial behavior by the bats. (H) Example echolocation traces recorded on the six microphones during the last 2.5 seconds before landing on a platform.