Figure 5
From: Dynamic changes of timing precision in timed actions during a behavioural task in guinea pigs

Statistical analysis of the observation probability by resampling the action time. (a) One resampling trial was obtained by data scrambling. The upper panel shows the observed action time in the original data. The lower panel is the resampled action time in scrambled data. (b) Extracted local Qʹ factors from the scrambled data shown in (a). (c) Probabilities to observe a local distribution of which local Qʹ factor exceeds the local Qʹ factor threshold in the scrambled data shown in (a). (d) Calculated possible range of observation probabilities under the assumption of no temporal change of timing precision. Open circle and greyish range indicate the mean of probability and the 95% confidence interval, respectively. The possible range was calculated from 10,000 sets of resampling and observation probability analysis. (e) Upper panel: A statistical analysis of the observation probability in a daily session obtained from a well-trained animal, compared to the possible range. The filled circle indicates the observation probability in original data that is shown in Fig. 4b. The possible range is shown in the same manner as (d). Significantly higher probability is marked by the arrowhead. Open arrowhead indicates p < 0.05. Double arrowhead indicates p < 0.005. Lower panel: The same examination in a different well-trained animal. The grey arrowhead indicates p < 0.01. (f) Comparison of probabilities to observe a local distribution of which local Qʹ factor exceeds 4 in scrambled data (left) and in original data (right), pooled from the four well-trained animals. One pair of probabilities linked with the dashed line was extracted from a daily session in an animal. Different symbols indicate different animals. The animals shown in (e) are represented by circle and diamond. The p-value was determined by the Wilcoxon signed-rank test (n = 11).