Table 5.

Mean (±SEM) repetitive motor movements (RMM), head-down sniffing counts, and behavioral intensity scores of drug-treated preweanling rats collapsed across time blocks 9–16 (Experiment 3)

Drug Infusion	RMM	Sniffing	Behavioral Intensity
Vehicle	223.7 (±54)	0.30 (±0.10)	0.18 (±0.14)
10 μg Quinpirole	677.9 (±34)*	6.99 (±0.61)*	2.83 (±0.07)*
1 μg SCH-23390	114.4 (±22)†	0.09 (±0.03)†	0.03 (±0.02)†
5 μg SCH-23390	77.7 (±22)†	0.84 (±0.74)†	0.22 (±0.21)†
1 μg SCH-23390/Quinpirole (10 μg)	615.2 (±40)*	4.92 (±1.10)*	1.50 (±0.39)
5 μg SCH-23390/Quinpirole (10 μg)	670.5 (±67)*	6.99 (±0.61)*	1.38 (±0.19)

Repetitive motor movement values represent mean total scores collapsed across the final 40-min testing phase, whereas head-down sniffing and behavioral intensity values represent mean scores per 5-min time block during the final 40-min testing phase.

^*Significantly different from the vehicle group.

^†Significantly different from the 10 μg quinpirole group.