Statistical tests and confidence intervals reported throughout this study referenced with letter superscripts
| Data structure | Type of test | Confidence intervals | |
|---|---|---|---|
| a | Correlation between speed profiles from –200 to 200 ms relative to peak speed, nonparametric | Wilcoxon rank-sum test | [25th, 75th] percentiles |
| b | Initial vs corrective movement times, nonparametric | Two-sided Wilcoxon rank-sum test | Percentage of submovements within 100–350 ms |
| c | Initial vs corrective average spike times between −200 and 100 ms, nonparametric | Spearman’s rank correlation | 95% confidence interval by bootstrapping (1000 repetitions) |
| d | Circular distribution of phase | Rayleigh test | Circular SD |
| e | CIφ-angle Speed – linear random variable | Circular correlation between angle and linear variable | Minimum and maximum across 12 recording sessions |
| f | Ratio of SDs of times estimated with CIφ and firing rate model | F test | 95% confidence interval |