. Author manuscript; available in PMC: 2012 Jun 1.

Published in final edited form as: Psychopharmacology (Berl). 2011 Feb 24;215(3):493–504. doi: 10.1007/s00213-011-2216-5

Table 3.

Weights of rats at each stage of experiment

	Adolescent			Adult

	Age (weeks)	Weight (grams) mean±SEM	% of published standards for this strain	Age (weeks)	Weight (grams) mean±SEM	% of published standards for this strain
Food training	Approximately 5	153±4	122	Approximately 10	329±4	94
Acquisition of cocaine self-administration	6	186±4	106	11	331±5	86
Early self-administration	7	202±4	91	12	320±4	78
Late self-administration	10	251±6	72	15	315±4	68
Extinction and reinstatement	12	262±7	63	17	314±6	Standard n/a