Figure 2. Stability of entrainment following occluder reassignment.

Distribution of periods (τ) of the circadian locomotor activity rhythm in experiment 2 over the 3 weeks prior to and 3 weeks following occluder reassignment on week 10. A–D Representative double-plotted locomotor activity records of Syrian hamsters bearing: A occluders in both eyes (BB→BB), B an occluder in the right eye (BR→BR), C an occluder that was moved from the right eye to the left on week 10 (BR→BL), and D a clear lens in the right eye (CR→CR). E Distribution of τ over the 3 weeks before and 3 weeks after occluder reassignment. F Mean (± s.e.m.) change in the phase angle of entrainment of the onset of locomotor activity relative to the onset of light (ψ_{R, L}) from the 3 weeks before occluder reassignment to the 3 weeks after. CR→BX hamsters received an occluder in the left or right eye after week 10, prior to which they received a clear lens in the right eye. G Variance in ψ_{R, L} over the 3 weeks before and 3 weeks after occluder reassignment. * p<0.005 vs. all other groups.