Figure 11

The response of the system to alternating shift work. The system was subjected under a 2-day inverse/5-day normal fast-rotating schedule after 75 days. Two types of response were observed. (a) Representative peaking time actograms for individuals who fail to maintain a stable 24 h oscillation; (b) Representative peaking time actograms for individuals who are able to maintain a stable 24 h oscillation. (c) The parameter space distribution of the two groups. All the individuals from group A are concentrated at high level of light sensitivity, while individuals from group B are mainly distributed at lower light sensitivity area, with a wider distribution compared to group A.