Figure 3. Rods contribution to phase shifts and period lengthening in constant light is dependent on cone state.
(A) WT, Gnat1–/–, and rod–only type 2 mice respond similarly in response to 15 minute, 1000 lux white light pulse administered at CT16 while rod–only type 1 and rod–only type 3 animals show minimal shift in activity onset. (B) Period length in constant darkness is compared to period length in constant light in all animals. WT, Gnat1–/– and rod–only type 2 animals all show significant period lengthening in constant light however, rod–only type 2 period length in constant light in significantly shorter than that seen in WT animals. Rod–only type 1 and 3 animals show no significant period lengthening in constant light. p<0.05 is represented by * and p<0.01 is represented by **. Error bars represent SEM.