. Author manuscript; available in PMC: 2010 Aug 1.

Published in final edited form as: Exp Clin Psychopharmacol. 2009 Aug;17(4):237–246. doi: 10.1037/a0016609

Table 1.

Order of conditions for each pigeon.

Pigeon	Conditions
R13¹	Ethanol, Cocaine, Pre Feed, EXT², Chlordiazepoxide, Morphine, Clonidine, Haloperidol
R14¹	Ethanol
R15¹	Ethanol, Cocaine, Pre Feed, EXT, Chlordiazepoxide, Morphine, Clonidine, Haloperidol
R16¹	Ethanol, Cocaine, Pre Feed, EXT, Chlordiazepoxide, Morphine, Clonidine, Haloperidol
R17¹	Ethanol
R26	Cocaine, Pre Feed, EXT, Chlordiazepoxide, Morphine, Clonidine, Haloperidol
R28	Clonidine, Pre Feed, EXT, Cocaine, Haloperidol
R30	Pre Feed, EXT, Morphine, Chlordiazepoxide, Haloperidol
R31	Pre Feed, EXT, Morphine, Chlordiazepoxide, Cocaine, Clonidine
R33	EXT

Previous experience with fluvoxamine and desiprimine

Extinction