Mean distance traveled (±SEM) during the habituation (i.e., time blocks 1–8) and testing (i.e., time blocks 9–16) phases on PD 18 (n = 8–12 per group). DMSO pretreatment = ⊙; EEDQ pretreatment = ⊗; Vehicle = ○; 5 μg SKF82958 = ●; 10 μg SKF82958 = ▲; 10 μg Quinpirole = ■.
* Significantly different from all other groups in the same pretreatment condition.
‡ Significantly different from the SKF82958 (5 μg) and vehicle groups in the same pretreatment condition.
† Significantly different from the vehicle group in the same pretreatment condition.
§ Significantly different from the DMSO-Quinpirole group (collapsed across time blocks 9–16).
¶ Significantly different from the EEDQ-Vehicle group (collapsed across time blocks 9–16).