Fig. 4.
Analysis of circadian rhythms in wild type (n = 57), park25 (n = 54) and PINK1B9 (n = 57) mutants from three rounds of recording. (a) Rhythmicity statistic values for wild type and mutant flies. There was a significant difference among the means (p = 0.0004). (b) Diurnal/nocturnal index values for wild type and mutant flies. There was a significant difference between the means (p < 0.0001). (c) Period of rhythmicity for wild type (n = 52) and park25 (n = 45) and PINK1B9 (n = 36) mutants as calculated through autocorrelation analysis. Values obtained for arrhythmic flies were omitted. There was no significant difference detected between the means. Data were analysed using one way ANOVA with Bonferroni's multiple comparisons tests (**p < 0.01; ***p < 0.001; ****p < 0.0001; error bars indicate SEM).