TABLE 2.

Group mean (± S.E.M.) behavioral counts after Δ⁹-THC on days 1 and 5 of exposure (n = 4/group)

Behavior	Δ9-THC Dose
	0 mg/kg	0.4 mg/kg	0.75 mg/kg	1.5 mg/kg	3 mg/kg	6 mg/kg
Day 1
Epoch 1 (0–30 min)
Sniffing	24.75 ± 2.50	20.75 ± 0.85	20.00 ± 1.58	22.00 ± 1.96	22.25 ± 0.95	22.75 ± 4.33
Walking	10.25 ± 1.03	10.00 ± 0.58	10.25 ± 0.48	11.25 ± 0.25	13.00 ± 0.58	11.50 ± 1.85
Grooming	2.00 ± 0.91	0.50 ± 0.29	1.25 ± 0.48	0.75 ± 0.48	1.00 ± 0.41	0.00 ± 0.00**
Motionless	0.00 ± 0.00	0.00 ± 0.00	0.25 ± 0.25	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00
Epoch 2 (45–75 min)
Sniffing	7.00 ± 1.29	16.50 ± 3.93*	17.25 ± 1.80**	15.25 ± 3.59*	20.00 ± 2.42**	21.75 ± 0.48***
Walking	2.25 ± 1.11	6.50 ± 1.04**	8.00 ± 0.91***	5.25 ± 0.85	7.25 ± 1.38**	9.00 ± 0.71***
Grooming	6.50 ± 2.10	2.50 ± 0.87*	2.00 ± 0.71*	1.50 ± 0.87**	1.75 ± 1.44**	0.00 ± 0.00***
Motionless	5.75 ± 2.17	2.25 ± 0.87	0.25 ± 0.25**	2.50 ± 1.26	0.75 ± 0.48**	0.00 ± 0.00**
Epoch 3 (90–120 min)
Sniffing	11.25 ± 3.82	4.50 ± 1.55	15.25 ± 5.76	15.50 ± 3.12	11.25 ± 3.33	12.00 ± 2.86
Walking	4.75 ± 1.89	0.75 ± 0.48	3.00 ± 1.58	5.50 ± 0.87	3.75 ± 1.55	4.75 ± 1.32
Grooming	1.00 ± 0.58	0.75 ± 0.48	1.75 ± 0.75	1.50 ± 0.29	0.75 ± 0.48	0.50 ± 0.50
Motionless	7.00 ± 2.48	12.50 ± 1.04	7.25 ± 0.75	3.75 ± 1.44	8.00 ± 2.08	6.00 ± 1.47
Day 5
Epoch 1 (0–30 min)
Sniffing	10.50 ± 1.85	15.00 ± 2.80	15.05 ± 3.12	20.25 ± 0.25**	18.50 ± 0.87*	18.25 ± 2.78*
Walking	5.75 ± 1.32	6.75 ± 1.65	7.75 ± 1.89	8.75 ± 1.03	8.50 ± 0.65	6.00 ± 1.29
Grooming	3.50 ± 1.19	6.25 ± 0.75	4.50 ± 1.55	2.50 ± 0.29	2.50 ± 1.19	0.75 ± 0.48
Motionless	5.25 ± 0.85	2.00 ± 1.22**	4.00 ± 1.00	0.75 ± 0.75***	1.50 ± 0.50**	0.50 ± 0.50***
Epoch 2 (45–75 min)
Sniffing	5.25 ± 1.65	8.50 ± 3.28	10.50 ± 1.85	12.75 ± 0.63*	14.00 ± 3.08**	7.25 ± 1.32
Walking	2.00 ± 0.58	2.50 ± 1.04	2.50 ± 0.29	6.50 ± 1.04**	6.00 ± 0.71**	3.50 ± 1.32
Grooming	3.25 ± 0.75	3.25 ± 1.60	2.75 ± 1.11	2.50 ± 0.96	2.25 ± 0.48	0.00 ± 0.00**
Motionless	8.00 ± 2.12	7.25 ± 2.66	6.75 ± 1.03	4.00 ± 1.22	3.50 ± 1.71	3.00 ± 1.22
Epoch 3 (90–120 min)
Sniffing	7.25 ± 0.63	5.00 ± 2.80	4.50 ± 1.66	7.25 ± 2.69	3.50 ± 1.89	4.75 ± 2.50
Walking	2.75 ± 1.03	2.25 ± 0.95	1.25 ± 0.63	3.50 ± 1.04	2.00 ± 1.22	2.25 ± 1.32
Grooming	3.25 ± 0.75	2.75 ± 1.03	1.50 ± 0.65	0.75 ± 0.48*	1.00 ± 0.71*	0.00 ± 0.00**
Motionless	6.00 ± 1.47	8.25 ± 1.80	10.50 ± 1.26	8.25 ± 2.75	11.25 ± 1.55	9.25 ± 2.32

^* P < 0.05;

^** P < 0.01;

^*** P < 0.001 compared with 0 mg/kg.