. Author manuscript; available in PMC: 2014 Dec 1.

Published in final edited form as: Neuropharmacology. 2013 Aug 22;0:10.1016/j.neuropharm.2013.08.001. doi: 10.1016/j.neuropharm.2013.08.001

Table 2. Classification of rats by cocaine-induced locomotor activity.

Acute Cocaine Groups Acute 1 and Acute 2
Group	Classification	Habituation LMA (cm/30 min)	Cocaine LMA (cm/30 min)
Group	Classification	*Baseline Mean*	*Mean*	*Median*
Acute 1	Vehicle (n = 8)	83 ± 36	342 ± 65
Acute 2	Vehicle (n = 6)	109 ± 50	569±140
Acute 1	Cocaine (n = 16)	135 ± 48	880±120
Acute 2	Cocaine (n = 18)	78 ± 41	1088±330
Acute 1	LCR (n = 8)	226±120	347±102	772
Acute 1	HCR (n = 8)	95 ± 59	1413±180	772
Acute 2	LCR (n = 9)	74 ± 64	429 ± 74	813
Acute 2	HCR (n = 9)	81 ± 55	1747 ± 590	813

Comparison of cocaine-induced locomotor activity (10 mg/kg, i.p.) in all rats and rats classified as LCRs and HCRs in groups Acute 1 and Acute 2. Data are presented as mean values ± SEM and represent the sum of activity over the first 30 min post-injection.