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Alcohol & Alcoholism Vol. 39, No. 3, pp. 197-202, 2004
Alcohol & Alcoholism Vol. 39, No. 3 © Medical Council on Alcohol 2004; all rights reserved

EFFECTS OF ETHANOL SIPPER AND SOCIAL OPPORTUNITY ON ETHANOL DRINKING IN RATS

Arthur Tomie*, Jillian M. Uveges, Kelly M. Burger, Patricia Patterson-Buckendahl and Larissa A. Pohorecky

Department of Psychology and Center of Alcohol Studies, Rutgers University, New Brunswick, NJ 08903, USA

* Author to whom correspondence should be addressed at: Center of Alcohol Studies, Rutgers University, 607 Allison Road, Piscataway, NJ 08854 8001, USA. Tel.: 732 445 3595; Fax: 732 445 3500; E-mail: tomie{at}rci.rutgers.edu

(Received 25 September 2003; in revised form 5 January 2004; accepted 4 February 2004)

Aims: The present study evaluates the effects of pairing ethanol sipper conditioned stimulus (CS) with social opportunity unconditioned stimulus (US) on CS-directed ethanol drinking in rats. Subjects were Long–Evans male rats (n = 32) deprived of neither food nor water, and the concentration of unsweetened ethanol (3 to 16%) in the sipper CS was increased across sessions. Methods: Group Paired/Ethanol (n = 12) received the ethanol sipper CS for 10 s immediately prior to 15 s of social opportunity US. Control groups received water rather than ethanol in the sipper CS (Paired/Water), or ethanol sipper CS and US presentations randomly (Random/Ethanol), or ethanol sipper CS but no social opportunity US (Sipper Only). Results: Mean ethanol intake in the Paired/Ethanol and Random/Ethanol groups exceeded 1.0 g/kg when the sipper CS contained 12%, 14% and 16% ethanol, and higher fluid intakes were observed in the Paired/Ethanol and Random/Ethanol groups than in the Paired/Water and Sipper Only groups. Conclusions: Social opportunity increased ethanol drinking, and more so than water drinking; however, autoshaping did not induce additional ethanol drinking beyond that observed in random controls.


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A. TOMIE, W. C. MILLER, E. DRANOFF, and L. A. POHORECKY
INTERMITTENT PRESENTATIONS OF ETHANOL SIPPER TUBE INDUCE ETHANOL DRINKING IN RATS
Alcohol Alcohol., May 1, 2006; 41(3): 225 - 230.
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