Table 1.

Circadian behavioural analysis of GIRK2 KO mice

			WT		KO		Independent samples t test
			Mean	SEM	Mean	SEM	t	d.f.	Significance (2-tailed)
No wheel	LD	Power	705.21	54.07	646.28	42.49	–0.86	24	0.400
		Mean counts (counts min–1)	3.02	0.26	2.56	0.18	–1.44	24	0.164
	DD	Tau	23.92	0.04	23.85	0.04	–1.08	24	0.292
		Power	539.24	2.79	534.05	28.64	–0.15	24	0.885
		Mean counts (counts min–1	2.91	0.20	2.87	0.20	–0.11	24	0.913
Wheel	LD	Power	1099.6	59.83	1170.3	118.43	0.55	13	0.589
		Mean counts (counts min–1)	14.51	1.98	16.13	1.87	0.59	13	0.566
	DD	Tau	23.80	0.04	23.95	0.04	2.46	13	0.029
		Power	1174	86.84	1430.7	86.55	2.08	13	0.058
		Mean counts (counts min–1)	11.85	1.65	18.72	1.95	0.76	13	0.018