A comparison of the mediational properties of four adolescent smoking expectancy measures.

This prospective study compared the ability of 4 smoking expectancy measures to mediate the influence of peer, parent, and current smoking on adolescents' cigarette use 3 months later. No evidence for mediation was found when expectancies were operationalized as unidimensional subjective expected utility (SEU). multidimensional SEU, or unidimensional SEU decomposed into probability and desirability main effects and their interaction. Evidence for partial mediation was found for the decomposed multidimensional SEU measure. The results suggest that (a) peer and current cigarette use may influence future smoking indirectly through adolescents' probability estimates that smoking will control negative emotions and (b) the relationship between current and future smoking also may be mediated by adolescents' beliefs about the desirability of weight control. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Correction to Leeman, Toll, Taylor, and Volpicelli (2009).

Reports an error in "Alcohol-induced disinhibition expectancies and impaired control as prospective predictors of problem drinking in undergraduates" by Robert F. Leeman, Benjamin A. Toll, Laura A. Taylor and Joseph R. Volpicelli (Psychology of Addictive Behaviors, 2009[Dec], Vol 23[4], 553-563). The table headings in Table 5, p. 561 should have read “Time 2 alcohol related problems” and “Time 2 heavy episodic drinking”. (The following abstract of the original article appeared in record 2009-24023-001.) Trait disinhibition is associated with problem drinking and alcohol drinking can bring about a state of disinhibition. It is unclear however, if expectancies of alcohol-induced disinhibition are unique predictors of problem drinking. Impaired control (i.e., difficulty in limiting alcohol consumption) may be related to disinhibition expectancies in that both involve issues of control related to alcohol use. Data from a prospective survey of undergraduates assessed during freshman (N = 337) and senior year (N = 201) were analyzed to determine whether subscales of the Drinking-Induced Disinhibition Scale (Leeman, Toll, & Volpicelli, 2007) and the Impaired Control Scale (Heather et al., 1993) predicted unique variance in heavy episodic drinking and alcohol-related problems. In Time 1 cross-sectional models, Dysphoric disinhibition expectancies predicted alcohol-related problems and impaired control predicted both alcohol-related problems and heavy episodic drinking. In prospective models, Time 1 impaired control predicted Time 2 alcohol-related problems and Time 1 Euphoric/social Disinhibition expectancies predicted Time 2 heavy episodic drinking. These findings suggest that expectancies of alcohol-induced disinhibition and impaired control predict unique variance in problem drinking cross-sectionally and prospectively, and that these phenomena should be targeted in early intervention efforts. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Alcohol-induced disinhibition expectancies and impaired control as prospective predictors of problem drinking in undergraduates.

[Correction Notice: An erratum for this article was reported in Vol 24(3) of Psychology of Addictive Behaviors (see record 2010-19026-008). The table headings in Table 5, p. 561 should have read “Time 2 alcohol related problems” and “Time 2 heavy episodic drinking”.] Trait disinhibition is associated with problem drinking and alcohol drinking can bring about a state of disinhibition. It is unclear however, if expectancies of alcohol-induced disinhibition are unique predictors of problem drinking. Impaired control (i.e., difficulty in limiting alcohol consumption) may be related to disinhibition expectancies in that both involve issues of control related to alcohol use. Data from a prospective survey of undergraduates assessed during freshman (N = 337) and senior year (N = 201) were analyzed to determine whether subscales of the Drinking-Induced Disinhibition Scale (Leeman, Toll, & Volpicelli, 2007) and the Impaired Control Scale (Heather et al., 1993) predicted unique variance in heavy episodic drinking and alcohol-related problems. In Time 1 cross-sectional models, Dysphoric disinhibition expectancies predicted alcohol-related problems and impaired control predicted both alcohol-related problems and heavy episodic drinking. In prospective models, Time 1 impaired control predicted Time 2 alcohol-related problems and Time 1 Euphoric/social Disinhibition expectancies predicted Time 2 heavy episodic drinking. These findings suggest that expectancies of alcohol-induced disinhibition and impaired control predict unique variance in problem drinking cross-sectionally and prospectively, and that these phenomena should be targeted in early intervention efforts. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Depressive symptoms, stress, and weight concerns among African American and European American low-income female smokers.

The relationships between perceived stress, depressive symptoms, concern about weight gain and smoking dependence were examined among 83 European American and 175 African American female smokers bringing children to pediatric clinics serving a low-income population. Among African American women, but not European American women, greater stress and more depressive symptoms predicted greater smoking dependence, and less concern about weight gain predicted greater smoking dependence. Multivariate analyses confirmed the bivariate relationships among stress, depressive symptoms, and smoking dependence among African American women but reduced the relationship between weight concern and smoking dependence. The stronger relationships among stress, depressive symptoms, and smoking dependence among African American women may be indicative of smoking patterns more associated with affect regulation than are the smoking patterns of European American women. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Do expectancies for reinforcement from smoking change after smoking initiation?

Expectancies are important predictors of smoking behavior. Recent research suggests that expectancies are not stable and vary across internal and external states and levels of cigarette consumption. Expectancies may also vary between individuals as a function of temperamental characteristics such as behavioral undercontrol (BU). Although pre-initiation expectancies have been linked to subsequent smoking behaviors, no study has assessed the effect of smoking initiation on expectancies. The present study was designed to test the hypotheses that both positive (PRE) and negative (NRE) reinforcement expectancies would increase following initiation, and that these changes would be moderated by BU. College students were interviewed 12–15 months apart. Those who initiated smoking between assessments (n = 69) were included in the present study. Linear mixed models showed a significant increase in PRE but not NRE from pre- to postinitiation. The relationship between NRE and time was moderated by BU, such that higher BU was associated with significantly larger post-initiation increases in NRE. Findings suggest that PRE and NRE change significantly following experience with smoking. Furthermore, undercontrolled, impulsive individuals may be particularly vulnerable to smoking with the intention of alleviating aversive states. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Dimensions of impulsive behavior in adolescent smokers and nonsmokers.

Robust associations have been identified between impulsive personality characteristics and cigarette smoking during adolescents, indicating that impulsive behavior may play an important role in the initiation of cigarette smoking. The present study extended this research by using laboratory behavioral assessments to explore relationships between three specific dimensions of impulsive behavior (impulsive decision-making, inattention, and disinhibition) and adolescent cigarette smoking. Participants were male and female adolescent smokers (n = 50) and nonsmokers (n = 50). Adolescent smokers were more impulsive on a measure of decision-making; however, there were significant smoking status by gender interaction effects for impulsive inattention and disinhibition. Male smokers were most impulsive on the measure of inattention, but male smokers were least impulsive on the measure of disinhibition. Correlations between biomarkers of smoking and impulsive inattention and disinhibition were found for females but not males. The current findings, coupled with previous findings (Reynolds et al., 2007), indicate there may be robust gender difference in associations between certain types of impulsive behavior and cigarette smoking during adolescence. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effects of an implicit mood prime on the accessibility of smoking expectancies in college women.

This study examined whether an implicit mood prime would differentially affect the accessibility of self-generated smoking expectancies in women. One hundred nine ever-smokers were randomly assigned to receive either a positive or negative musical mood induction or a no-music control condition. Participants self-generated smoking expectancies, and the 1st responses were categorized as positive reinforcement, negative reinforcement, or negative consequence expectancies. Overall, participants generated mood-congruent smoking expectancies, suggesting that affect may act as a conditioned stimulus that elicits expectations of positive and negative reinforcement of smoking behavior. In addition, negative reinforcement expectancies were more frequently generated in current versus past smokers. Results are consistent with a situational-specificity hypothesis and memory-based models of affect and expectancies. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The validity of Dietary Restraint Scales: Comment on Stice et al. (2004).

In 4 empirical studies, E. Stice, M. Fisher, and M. R. Lowe (see record 2004-11653-006) calculated the correlations between some widely used dietary restraint scales and food intake. Failing to find substantial negative correlations, they concluded that these scales were invalid. The current article challenges this conclusion. For one thing, there is some evidence that restrained eaters do eat less than do unrestrained eaters under controlled experimental conditions favoring self-control. Dietary restraint is also associated with tendencies toward disinhibition under conditions favoring loss of self-control; such disinhibition often masks (but does not invalidate) the construct of dietary restraint. For these and other reasons, the assessment of food intake at a single eating episode may not capture overall dietary restriction. Finally, how much one eats does not necessarily indicate whether one has eaten less than one desired to eat. The authors suggest that the existing restraint scales do in fact validly assess restriction of food intake, albeit in a more complex fashion than is evident from simple correlations in single episodes. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Measuring adolescent smoking expectancies by incorporating judgments about the expected time of occurrence of smoking outcomes.

French and English Canadian adolescents completed a smoking expectancy questionnaire and 2 measures of current smoking status. Multiple regression revealed that beliefs about the expected time of occurrence of smoking outcomes explained unique variance in current smoking after controlling for judgments about the probability and desirability of these outcomes. In addition, the relationship between the perceived probability of the general costs of smoking and current smoking was moderated by beliefs about the expected time of occurrence of these costs. There was no relationship between perceived probability of general costs and smoking for adolescents who expected the costs to occur far in the future, whereas there was a significant negative relationship between these 2 variables for adolescents who expected the costs to occur soon after smoking. The authors' results suggest that it may be possible to increase the concurrent validity of traditional smoking expectancy measures by incorporating expected-time-of-occurrence judgments. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Dietary restraint: A theoretical and empirical review.

Examines 2 basic hypotheses concerning dietary restraint. One hypothesis focuses on disinhibition or loss of control among dieters, and the other focuses on the relations between obesity and restraint. It is concluded that the disinhibition hypothesis, which proposes that dieters overeat after disruptions in self-control, has been supported. Both perceptions of having overeaten and dysphoric mood precipitate high consumption among restrained eaters. Research is needed to establish the processes underlying these effects. It is also concluded that the obesity and restraint hypothesis, which proposes that differences in level of restraint underlie differences between obese and normal weight people's eating patterns, has not been supported. Although obese people have higher average restraint scores than normal weight people do, they do not show the disinhibited eating patterns that characterize normal weight, restrained eaters. Studies of the restraint scale have indicated that the high scores found among obese people may be due to psychometric problems in the scale. Overall, it is concluded that although the hypotheses concerning restraint and the recent extension of them into a boundary model of food regulation do not seem useful in understanding obesity, they appear to be relevant to understanding binge eating and related disorders such as bulimia. (77 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Dietary disinhibition, perceived stress, and glucose control in young, Type 1 diabetic women.

Examining the relationship of stress, dietary disinhibition, and blood glucose control in diabetic young women was the goal of this study. 65 diabetic girls and women, ranging in age from 12 to 26 yrs, completed eating behaviors and perceived stress scales during regular clinic visits. Blood glucose control was assessed by concurrent glycosylated hemoglobin measurements. Multiple regression analyses indicated that high levels of perceived stress predicted dietary disinhibition and that within the age range studied, young women were more likely than early adolescent girls to perceive their life as stressful. Contrary to previous findings that failed to show that stress can indirectly affect glucose control by interfering with compliance behaviors, the present work indicated a Stress?×?Dietary Disinhibition interaction in predicting glucose control. Blood glucose control was poorest in those diabetic women who both perceived their lives as stressful and reported medium to high disinhibition. Blood glucose control was unrelated to stress in young women who reported low levels of disinhibition. These results have implications for the development of specific interventions for young diabetic women who perceive their lives as stressful and who may respond to stress by eating. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Relationship between dietary restraint, energy intake, physical activity, and body weight: A prospective analysis.

Dietary, activity, and body weight differences in high- and low-restrained eaters and the independent impact of dietary restraint on body weight change were evaluated in 287 adults (141 men, 146 women) followed over a 1-yr period. Analyses of measures of energy intake, physical activity, and dietary restraint indicated that high-restraint eaters did not differ in physical activity compared to low-restrained eaters at baseline but were ingesting significantly fewer kcal/lb and a higher percentage of the diet from fat. Body mass was significantly greater in both high-restrained men and high-restrained women than in their low-restrained counterparts. Regression modeling procedures revealed that weight and body mass at baseline were related to weight gain in men. In contrast, weight gain in women was predicted by baseline weight and higher restraint scores. Results indicate that dietary restraint is associated with weight gain in women but not in men. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Smoking and pursuit of thinness in schoolgirls in London and Ottawa

It has been proposed that teenage girls often smoke cigarettes to protect themselves from the impulse to binge eat, with its feared weight-gain consequences, particularly when other measures such as greater dietary restraint have failed. The present study looked at the relationship between body mass index and standardised questionnaire responses concerning smoking, alcohol consumption, moods, weight changes, attitudes to body weight and shape, dietary patterns and menstruation in 1936 British (London) and 832 Canadian (Ottawa) schoolgirls. Data analysis revealed links between cigarette smoking and body weight/shape concerns, and awareness by subjects of these links; there was also a tendency for smokers in these two populations to be overweight but not grossly obese. Smoking was also related at all ages to being postmenarchal. The London population in particular revealed an association between smoking and a weight loss of 7 kg or more at some stage since puberty. Smoking was also linked, in a minority, with regular vomiting undertaken as a further defence against weight gain when overeating had occurred. These associations existed alongside the major and predictable association found between alcohol consumption and smoking. Similarities between the British and Canadian schoolgirls were striking in respect of rank order of reasons given for smoking and consequences of giving it up. Since smoking amongst older women is reportedly associated with below-average body weight it may indeed be effective in helping to curb weight gain. Our study provided little evidence of association between smoking and generalised anxiety or social anxiety (in either population), or depression (in the British cohort). We suggest that any preventive psychological approach to teenage female smoking should include attention to weight gain anxiety and consequent pursuit of thinness.     

Affective benefits of exercise while quitting smoking: Influence of smoking-specific weight concern.

The present study aimed to shed light on contradictory findings about the effects of exercise on negative affect during smoking cessation. The authors hypothesized that smoking-specific weight concern would moderate the relationship between exercise and negative affect. Baseline measures of smoking-specific weight concern, exercise, and negative affect were completed by 146 women participating in a randomized controlled trial of smoking cessation plus weight control. Exercise and negative affect were reassessed 1 week after the quit date. Among women with heightened smoking-specific weight concern, greater engagement in exercise was associated with less of an increase in negative affect. Results suggest that exercise may help temper negative affect states for women with heightened smoking-specific weight concern. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Delay discounting predicts postpartum relapse to cigarette smoking among pregnant women.

Delay discounting (DD), a measure of impulsivity, describes the rate at which rewards lose value as the delay to their receipt increases. Greater discounting has been associated with cigarette smoking and various other types of drug abuse in recent research. The present study examined whether DD predicts treatment outcome among cigarette smokers. More specifically, the authors examined whether baseline discounting for hypothetical monetary rewards predicted smoking status at 24 weeks postpartum among women who discontinued smoking during pregnancy. Participants were 48 pregnant women (10.5 = 4.1 weeks gestational age at study entry) who participated in a clinical trial examining the use of incentives to prevent postpartum relapse. Several sociodemographic characteristics (being younger, being less educated, and reporting a history of depression) assessed at study entry were associated with increased baseline DD, but in multivariate analyses only DD predicted smoking status at 24 weeks postpartum. Greater baseline DD was a significant predictor of smoking status at 24 weeks postpartum. DD was reassessed periodically throughout the study and did not significantly change over time among those who eventually resumed smoking or those who sustained abstinence. The results extend the association of DD with risk for substance abuse to pregnant and recently postpartum cigarette smokers and demonstrate a significant relationship between DD and treatment outcome. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Integrating disinhibition and learning risk for alcohol use.

In this study the authors tested the acquired preparedness model of problem drinking, which holds that trait disinhibition, defined as neurotic extraversion by C. M. Patternson and J. P. Newman (1993), leads to the biased formation of positive over negative alcohol expectancies. Positive expectancies thus mediate disinhibition's influence on drinking. The authors also hypothesized that disinhibition moderates the expectancy–drinking relationship such that disinhibited individuals are more likely to act on their positive expectancies. In Study 1, positive expectancies both mediated and moderated the disinhibition–drinking relationship. In Study 2, learning task results indicated that disinhibited individuals sought reward, even when passive avoidance of punishment was indicated. Study 2 also replicated Study 1 hypotheses for men but generally not for women. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The impact of self-efficacy on behavior change and weight change among overweight participants in a weight loss trial.

Despite considerable clinical interest, attempts to link perceived self-efficacy with successful weight control have had mixed success. Definitive data on prospective associations between self-efficacy and weight loss are particularly sparse. This study examined relationships between self-efficacy beliefs, weight control behaviors, and weight change among individuals participating in a weight loss trial (N = 349, 87% women). Cross-sectionally, eating and exercise self-efficacy beliefs were strongly associated with corresponding weight loss behaviors. Self-efficacy beliefs prospectively predicted weight control behavior and weight change during active treatment but not during follow-up. Mediational models indicate that people's weight control behaviors mediate the impact of self-efficacy on weight change. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Influences of gender and weight gain on short-term relapse to smoking in a cessation trial.

Few researchers have studied whether weight gain has an impact on short-term relapse to smoking. The authors of this study investigated predictors of relapse among 989 participants (60% women) in a randomized, double-blind, 10-week multicenter trial to determine the effect of fluoxetine (30 or 60 mg) versus placebo in combination with behavioral counseling for smoking cessation. Medication compliance and smoking status were biochemically verified. At Visit 2, participants were asked to set a quit date within the subsequent 2 visits. A proportional hazards regression model was used to predict risk of relapse within the first 3 months of quitting. Weight gain predicted relapse, but for men only. Female gender also predicted relapse. The results led the authors to question whether postcessation weight gain interventions should be restricted to women smokers. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The relationship between body weight concerns and adolescent smoking.

Although a number of factors have been found to predict smoking status among adolescents, few researchers have examined how belief in smoking as a weight-control strategy may be related to smoking in this high-risk population. With the goal of discovering whether belief in smoking as a weight-control strategy predicted smoking status, the present investigation surveyed 659 Black and White high school students. Analyses showed that among regular smokers, 39% of White female and 12% of White male smokers reported using smoking to control their appetite and weight. Although belief in smoking as a weight-control strategy did not predict regular smokers versus never smokers, the weight-belief item reliably separated experimental smokers from regular smokers. The survey also revealed that White female restrained eaters were the most likely to actually use smoking as a weight-control strategy. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The paradoxical effect of diet commercials on reinhibition of dietary restraint.

Although many studies have explored the mechanism by which dietary restraint becomes disinhibited, few have examined how restraint is restored or "reinhibited." Using a taste test with preload design, we showed a sad movie clip interrupted by diet-related commercials, neutral commercials, or no commercials to women with high and low restraint scores. We predicted that images of successful dieting would foster reinhibition. Results, however, revealed the opposite: high restrained eaters who viewed the diet-oriented commercials ate more than other subjects. We interpret these data as suggesting that diet-related images act as additional disinhibitors and view our results in light of research (T. F. Heatherton et al; see record 1991-15244-001) linking ego threat to dietary disinhibition. (PsycINFO Database Record (c) 2010 APA, all rights reserved)