Table 1.

Mean ± SEM number of bouts at different pause criteria.

	0.3 s	1 s	3 s	10 s
Sourose
WT	63.50 ± 11.43	32.25 ± 6.44	22.37 ± 4.21∗	16.37 ± 2.82∗
KO	74.90 ± 12.69	18.90 ± 3.67	11.09 ± 1.42	8.91 ± 1.01
Extinction
WT	78.75 ± 14.19	53.87 ± 8.97∗	37.25 ± 5.51∗	23.38 ± 2.43∗
KO	43.09 ± 13.33	19.09 ± 5.47	12.72 ± 2.39	10.82 ± 2.07
Reinstatement
WT	48.50 ± 4.65	31.00 ± 3.28	22.75 ± 2.90	19.00 ± 2.30∗
KO	72.54 ± 14.87	25.81 ± 6.78	15.00 ± 4.30	10.91 ± 2.38
Water
WT	60.12 ± 11.63	36.62 ± 5.57∗	26.37 ± 3.35∗	18.75 ± 2.01∗
KO	63.80 ± 11.92	20.70 ± 3.81	13.70 ± 2.89	10.70 ± 2.13

Criteria are based on (Spector et al., 1998). *p < 0.05, t-test between KO and WT.