Table 2.

Total exploration duration (s) in sample phases

Lighting condition	Time of day	Task
		Object^{^a}		Object-in-place^{^a}		Object displacement^{^a}		Odor^{^a}
		Mean	SEM	Mean	SEM	Mean	SEM	Mean	SEM
Condition 1: LD	ZT 06	91.235	7.364	78.236	6.767	140.750	8.844	56.035	5.907
Condition 1: LD	ZT 18	131.727	8.989	101.719	7.388	169.448	11.348	74.938	6.627
Condition 2: rLL	CT 06	105.192	14.433	74.016	5.813	116.284	8.614	62.031	5.939
Condition 2: rLL	CT 18	124.230	9.935	79.204	5.073	124.478	8.989	76.099	6.092
Control LL	CT 06	123.087	13.557	95.660	9.303	—	—	56.405	8.120
Control LL	CT 18	132.898	11.587	101.521	7.614	—	—	79.565	10.156

↵^aSignificant main effects of time of day (p < 0.05).