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. Author manuscript; available in PMC: 2012 Jun 26.
Published in final edited form as: J Biol Rhythms. 2008 Jun;23(3):242–251. doi: 10.1177/0748730408317135

Figure 1.

Figure 1

Course of photoperiodic and surgical treatments during phases 1 and 2 (separated by dashed lines) for the 4 experiments. Number of weeks in each phase is indicated at the top but varied by experiment; phase 1 lasted 24 to 32 weeks, whereas phase 2 continued for either 16 or 24 weeks in different experiments.