Table 3.

Open Field (mean ± SEM). a) Active time was increased in B6N/T = 21 mice compared to controls, but no other differences. b) Both strain (B6J > B6N) and photoperiod (T = 21 > T = 24) were present for Distance Traveled. c) Velocity was increased in mice under the 21-hour day compared to T = 24 mice. d) B6J exhibits increased Total Rotations compared to B6N. e) No significant differences for rearing or f) center zone Time. † indicates a T-cylce difference, σ indicates a baseline strain difference, and italics denotes significant pairwise comparison, at p < .05.

Genotype	Diet	T-cycle	Active Time (min) (σ, †)	Distance (cm) (σ, †)	Velocity (cm/s) (†)	Rears	Total Rotations (σ)	Center Zone Time (min)
B6J	RC	T = 24	8.88 ± 0.33	1277.37 ± 65.98	2.99 ± 0.070	103.50 ± 6.94	16.06 ± 0.87	1.49 ± 0.17
B6J	HF	T = 24	8.46 ± 0.13	1229.03 ± 56.79	2.79 ± 0.068	90.44 ± 6.83	18.57 ± 1.74	1.52 ± 0.18
B6J	RC	T = 21	9.00 ± 0.24	1180.05 ± 47.99	3.10 ± 0.15	98.13 ± 9.27	18.97 ± 1.05	1.84 ± 0.21
B6J	HF	T = 21	8.83 ± 0.21	1405.57 ± 59.85	3.07 ± 0.086	97.88 ± 9.51	16.22 ± 1.17	1.72 ± 0.18
B6N	RC	T = 24	7.68 ± 0.27	999.01 ± 61.78	2.75 ± 0.11	91.85 ± 12.65	13.62 ± 1.84	1.49 ± 0.17
B6N	HF	T = 24	8.26 ± 0.23	1092.26 ± 50.11	2.90 ± 0.12	95.85 ± 12.02	16.10 ± 1.80	1.30 ± 0.30
B6N	RC	T = 21	8.91 ± 0.35	1415.40 ± 94.25	2.92 ± 0.087	69.28 ±21.92	14.81 ± 1.93	1.28 ± 0.28
B6N	HF	T = 21	8.19 ± 0.19	1177.00 ± 75.73	2.95 ± 0.13	87.85 ±16.14	12.77 ± 1.02	1.64 ± 0.27