. Author manuscript; available in PMC: 2013 May 1.

Published in final edited form as: Pharmacol Biochem Behav. 2012 Jan 20;101(3):417–426. doi: 10.1016/j.pbb.2012.01.010

Table 1.

Experimental Protocol for the dyad-housed rats

Tests	Single- housing	Dyad- housing	Water only	Ethanol/Water choice	Timeline (days)
Acclimatization	x		x		12
Saccharin testing	x		x		3
Rest	x		x		5
Ethanol intake	x			x	21
Amphetamine test	x			x	37
Washout	x		x		21
	-	-	-	-	-
Saccharin testing		x	x		3
Rest		x	x		5
Ethanol intake		x		x	21
Amphetamine test		x		x	37

The timeline for the testing schedule, and the availability of water and the choice of EtOH/water, for the single-housed rats was the same as for the dyad-housed rats except that these rats remained single-housed.