Affect, expectancies, urges, and smoking: Do they conform to models of drug motivation and relapse?

Social-learning models of drug motivation and relapse often include the constructs of affect and drug expectancies. Most research has taken a molar approach to examining relations between these constructs and level of drug use. An experiment examined the roles of affect and expectancies in multiple measures of situation-specific motivation to smoke tobacco. Undergraduate smokers (n = 101) received either a positive or negative mood manipulation (false feedback on an intelligence test). Self-reported urge was influenced by both negative affect and expectancies for positive reinforcement from smoking. Actual consumption was related only to smoking expectancies and only among abstaining smokers. Affect by expectancy Interactions were also found. Findings support a limited role of affect and expectancies in smoking motivation. Poor coherence among the motivational indexes challenges the assumptions of existing models of drug motivation.