Table 2.

Novel 1 odor (N1) exploration during Habituation at six months post-exposure.

Group	N1 Odor Trial 1 (s)	Familiar Odors Trial 1 (s)	t value	p value	N1 Odor Trial 3 (s)	t value	p value
Sham	19.40 ± 3.80	4.89 ± 0.49	3.637	0.005	4.50 ± 2.10	3.140	0.012
1 cGy	22.57 ± 3.24	5.14 ± 0.72	4.669	0.001	7.78 ± 2.07	4.175	0.001
10 cGy	23.28 ± 2.67	4.16 ± 0.52	6.463	<0.001	12.8 ± 3.28	2.581	0.024

Mean (±SEM) exploration time in seconds for the N1 odor on the first and third trial and the average of the three familiar odor beads on the first trial. Sample size: n = 10–13 rats per group.