AIMS We examined the relationship between alcohol expectancies in childhood and onset of drinking, binge drinking and drunkenness in adolescence and the influence of drinking onset on expectancy development. DESIGN A prospective, longitudinal study of children assessed for alcohol expectancies and drinking at four time-points between ages 6 and 17 years. SETTING Community study of families ...

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) recei...

Language-based measures indicate that alcohol expectancies influence alcohol consumption. To relate these measures to brain actions that precede verbal output, the P300 component of the Event-related potentials (ERPs) was used to detect violations of individually held alcohol expectancies. As predicted, P300 amplitude elicited by negative alcohol expectancy stimuli was positively correlated wit...

AIM Alcohol expectancies refer to the effects of alcohol use anticipated by an individual. Metacognitive beliefs about alcohol use are a specific form of alcohol expectancy relating to the beliefs individuals hold about the effects of alcohol on cognition and emotion. METHOD A community sample of 355 individuals completed measures of alcohol expectancies, metacognitive beliefs about alcohol u...

BACKGROUND Alcohol-related expectancies are especially relevant in relation to alcohol consumption during adolescence. The main aim of this study was to adapt and translate into Spanish (Castilian) the Expectancy Questionnaire (EQ), and to study its psychometric properties in adolescents. METHOD The sample was composed of 514 adolescents (57.20% female, mean age = 15.21; SD = .63) who complet...

To test the eating disorder expectancy theory contention that expectancies for reinforcement from thinness play a causal role in body dissatisfaction and eating disorder symptoms, the authors manipulated expectancies in 2 studies. Participants were exposed to either a psychoeducational intervention or an experimental manipulation of thinness and restricting expectancies. Study 1 participants we...

AIMS Recent studies with animal models showed that the stimulant and sedative effects of alcohol change during the adolescent period. In humans, the stimulant effects of ethanol are most often indirectly recorded through the measurement of explicit and implicit alcohol effect expectancies. However, it is unknown how such implicit and explicit expectancies evolve with age in humans during adoles...

According to the 'acquired preparedness model,' expectancies mediate the relationship between an impulsive personality style and alcohol use. The current study evaluated whether the model can also be applied to marijuana use. Estimated probabilities and subjective evaluations of personally expected marijuana effects, along with impulsivity and frequency of marijuana use, were assessed in 337 co...