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Fig. 6. Light pulse-induced phase shift (h) of the emergence rhythm at four phases
(CT2, 8, 14 and 20) of the selected and control populations. Circadian Time 0
(CT0) indicates the onset of locomotor activity. Error bars indicate 95%
confidence intervals (95%CI) around the mean for visual hypothesis testing. A
total of 40 vials were used, of which 10 were used for each replicate
population at each phase.