Table 3.

Mean (±SEM) head-down sniffing counts and behavioral intensity scores of SKF-82958- or quinpirole-treated rats on time blocks 9–16 (Experiment 2)

Drug Infusion	Sniffing	Behavioral Intensity
Vehicle	0.55 (±0.65)	0.18 (±0.07)
1 μg SKF-82958	2.92 (±0.48)*	0.91 (±0.11)
3 μg SKF-82958	5.82 (±0.53)* †	1.80 (±0.17)*
10 μg SKF-82958	7.77 (±0.62)* † ‡	2.14 (±0.23)*
Vehicle	0.23 (±0.09)	0.08 (±0.05)
10 μg Quinpirole	7.17 (±0.72)*	2.54 (±0.10)*
20 μg Quinpirole	9.30 (±0.57)* ^	2.38 (±0.17)*
30 μg Quinpirole	9.71 (±0.50)* ^	2.29 (±0.19)*

Values represent mean (±SEM) head-down sniffing and behavioral intensity scores per 5-min time block collapsed across the final 40-min testing phase.

^*Significantly different from the vehicle group;

^†significantly different from the 1 μg SKF-82958 group;

^‡significantly different from the 3 μg SKF-82958 group;

^{^}significantly different from the 10 μg quinpirole group.