Quitting-unmotivated and quitting-motivated cigarette smokers exhibit different patterns of cue-elicited brain activation when anticipating an opportunity to smoke

The authors examined the effects of smoking expectancy on cue-reactivity among those motivated and those unmotivated to quit smoking using functional MRI. Cue-elicited activation was observed in the rostral prefrontal cortex (PFC) in smokers who expected to smoke within seconds, but not in those who expected to have to wait hours before having the chance to smoke, regardless of quitting motivation. For quitting-unmotivated smokers expecting to smoke, rostral PFC activation was strongly positively correlated with the activation of several areas previously linked to cue-reactivity, including the medial orbitofrontal cortex (OFC) and rostral anterior cingulate cortex (ACC). In contrast, there was a nonsignificant negative relationship between activation of the rostral PFC and activation of the medial OFC/rostral ACC in quitting-motivated smokers expecting to smoke. Results extend previous work examining the effects of smoking expectancy and highlight the utility of examining interregional covariation during cue exposure. Findings also suggest that investigators may need to pay close attention to the motivational contexts associated with their experiments when studying cue-reactivity, as these contexts can modulate not only responses to drug cues, but perhaps also the functional implications of observed activity.     

Weak ventral striatal responses to monetary outcomes predict an unwillingness to resist cigarette smoking

As a group, cigarette smokers exhibit blunted subjective, behavioral, and neurobiological responses to nondrug incentives and rewards, relative to nonsmokers. Findings from recent studies suggest, however, that there are large individual differences in the devaluation of nondrug rewards among smokers. Moreover, this variability appears to have significant clinical implications, since reduced sensitivity to nondrug rewards is associated with poorer smoking cessation outcomes. Currently, little is known about the neurobiological mechanisms that underlie these individual differences in the responsiveness to nondrug rewards. Here, we tested the hypothesis that individual variability in reward devaluation among smokers is linked to the functioning of the striatum. Specifically, functional magnetic resonance imaging was used to examine variability in the neural response to monetary outcomes in nicotine-deprived smokers anticipating an opportunity to smoke—circumstances found to heighten the devaluation of nondrug rewards by smokers in prior work. We also investigated whether individual differences in reward-related brain activity in those expecting to have access to cigarettes were associated with the degree to which the same individuals subsequently were willing to resist smoking in order to earn additional money. Our key finding was that deprived smokers who exhibited the weakest response to rewards (i.e., monetary gains) in the ventral striatum were least willing to refrain from smoking for monetary reinforcement. These results provide evidence that outcome-related signals in the ventral striatum serve as a marker for clinically meaningful individual differences in reward-motivated behavior among nicotine-deprived smokers.     

Selective cardiovascular effects of stress and cigarette smoking in young women

In an earlier study, we found that men who smoked a cigarette and then engaged in a mildly stressful activity (video game) evidenced pronounced increases in heart rate and blood pressure, which were approximately equal to the sum of the effects produced by either smoking alone or stress alone. In the present study, a 2 (smoke vs. sham smoke) X 2 (stress vs. no stress) factorial design was used to evaluate the impact of stress and smoking on the cardiovascular responses of young women. The results revealed that the combination of stress and cigarette smoking produced blood pressure and heart rate responses that were larger than the additive effects of smoking and stress taken separately.     

Too tired to tell the truth: Self-control resource depletion and dishonesty

The opportunity to profit from dishonesty evokes a motivational conflict between the temptation to cheat for selfish gain and the desire to act in a socially appropriate manner. Honesty may depend on self-control given that self-control is the capacity that enables people to override antisocial selfish responses in favor of socially desirable responses. Two experiments tested the hypothesis that dishonesty would increase when people’s self-control resources were depleted by an initial act of self-control. Depleted participants misrepresented their performance for monetary gain to a greater extent than did non-depleted participants (Experiment 1). Perhaps more troubling, depleted participants were more likely than non-depleted participants to expose themselves to the temptation to cheat, thereby aggravating the effects of depletion on cheating (Experiment 2). Results indicate that dishonesty increases when people’s capacity to exert self-control is impaired, and that people may be particularly vulnerable to this effect because they do not predict it.     

Providing an escape option reduces retaliatory aggression

The purpose of this study was to examine whether providing an explicit means to escape future attacks by a provocative fictitious participant reduces retaliatory aggression. Using a laboratory measure of aggression (the Point Subtraction Aggression Paradigm), 25 participants were given the opportunity to earn points with monetary value on a fixed ratio (FR) 100 schedule, and to subtract points from a fictitious participant on an FR 10 schedule. Aggressive responding was defined as the number of point subtraction responses by the participant. Aggressive responding also produced intervals free from further attack by the fictitious participant. Provocation was manipulated by having the fictitious person subtract points from the participant. Each participant next completed the same task with an explicit FR 10 escape response option added. The escape option produced intervals free from attack identical to the aggressive option, but without taking points away from the fictitious participant. Results indicate that the availability of an escape response attenuated aggressive behavior in response to provocation. Aggr. Behav. 00:000–000, 2005. © 2005 Wiley‐Liss, Inc.     

A comparative analysis of teenagers who smoke different cigarette brands

This study analyzed and compared the survey responses of teenagers who smoke different cigarette brands. It was found that teen Marlboro and Camel smokers perceived themselves as having more stress in their lives as compared with teen Newport smokers. On average, Marlboro smokers were depressed or sad more often than were Camel or Newport smokers. Camel smokers were generally less interested in a peer stop-smoking program than were Newport or Marlboro smokers. Finally, these teen smokers, regardless of cigarette brand, had similar opinions about quitting. Given the differences across brands, more flexible approaches may be needed to address teenage smoking.     

Externalizing psychopathology and behavioral disinhibition: working memory mediates signal discriminability and reinforcement moderates response bias in approach-avoidance learning

Research has suggested that reduced working memory capacity plays a key role in disinhibited patterns of behavior associated with externalizing psychopathology. In this study, participants (N = 365) completed 2 versions of a go/no-go mixed-incentive learning task that differed in the relative frequency of monetary rewards and punishments for correct and incorrect active-approach responses, respectively. Using separate structural equation models for conventional (hit and false alarm rates) and signal detection theory (signal discriminability and response bias) performance indices, distinct roles for working memory capacity and changes in payoff structure were found. Specifically, results showed that (a) working memory capacity mediated the effects of externalizing psychopathology on false alarms and discriminability of go versus no-go signals; (b) these effects were not moderated by the relative frequency of monetary rewards and punishments; (c) the relative frequency of monetary rewards and punishments moderated the effects of externalizing psychopathology on hits and response bias for go versus no-go responses; and (d) these effects were not mediated by working memory capacity. The findings implicate distinct roles for reduced working memory capacity and poorly modulated active approach and passive avoidance in the link between externalizing psychopathology and behavioral disinhibition.     

Mediating Roles of Self-Set Goals,Goal Commitment,Self-Efficacy,and Attractiveness in the Incentive-Performance Relation

The effects of monetary incentives on performance were examined in 2 studies. These effects were hypothesized to be through the intermediary motivational processes of self-efficacy, attractiveness ratings, goal level, and goal commitment. In Study 1, 80 subjects worked solving anagrams on 8 trials under 1 of 4 monetary incentive conditions (piece rate, hourly rate, competitive bonus, and goal attainment bonus). In Study 2, 146 subjects worked solving anagrams on 4 trials under 1 of 4 monetary incentive conditions (piece rate, informed bonus, uninformed bonus, and assigned bonus). In both studies, subjects self-set goal levels both before and after the incen- tive manipulation. Results from both studies indicated that tying rewards to goal attainment resulted in subjects having lower goal levels and lower self-efficacy, whereas piece-rate systems resulted in higher goal levels and higher self-efficacy. In addition, goal levels and self-efficacy partially mediated the relation between incentives and performance.     

Mood influences on acute smoking responses are independent of nicotine intake and dose expectancy

Acute responses to smoking are influenced by nicotine and by nonpharmacological factors such as nicotine dose expectancy and sensory effects of smoke inhalation. Because negative mood increases smoking reinforcement, the authors examined whether these effects may be altered by mood context. Smokers (n=200) participated in 2 sessions, negative or positive mood induction, and were randomized to 1 of 5 groups. Four groups comprised the 2x2 balanced placebo design, varying actual (0.6 mg vs. 0.05 mg yield) and expected nicotine dose (expected nicotine vs. denicotinized [denic]) of cigarettes. A fifth group was a no-smoking control. Smoking, versus not smoking, attenuated negative affect, as well as withdrawal and craving. Negative mood increased smoking reinforcement. However, neither actual nor expected nicotine dose had much influence on these responses; even those smokers receiving and expecting a denic cigarette reported attenuated negative affect. A follow-up comparison suggested that the sensory effects of smoke inhalation, but not the simple motor effects of smoking behavior, were responsible. Thus, sensory effects of smoke inhalation had a greater influence on relieving negative affect than actual or expected nicotine intake.     

Quest Religion and the Problem of Limited Compassion

Is the religious questing orientation an unprejudiced orientation that shows tolerance for people to a degree that suggests universal, rather than circumscribed, compassion? To answer this question, 90 undergraduates were given the opportunity to help either of two peers win a monetary prize. The identity of one of the peers was manipulated across two conditions: he or she was presented as holding a religious fundamentalist belief style or belief style unspecified. The purpose of the monetary prize was also varied across two conditions: an activity that either would or would not promote religious fundamentalist behavior. Participants scoring high in religious questing helped the discloser who held a religious fundamentalist belief style less than the discloser who did not, irrespective of whether they promoted religious fundamentalist behavior or not. These results suggest that the questing orientation is associated with prejudice toward the value‐violating person when the salient person value violates the open‐minded belief style of the questing orientation.     

Commission errors but not critical lures decrease when you have to pay a price for them

Using the Deese-Roediger-McDermott paradigm, we explored the effect of monetary penalty on false memories. Participants were presented 6 15-word lists of semantic associates that all converged on a nonpresented critical lure. Next, half of the participants received a monetary reward (0.10 Euro; about $0.10) for each correctly recalled word, whereas they lost money (0.20 Euro; about $0.20) for each incorrect response. Compared with control participants who received a fixed financial compensation, participants in the experimental group reported fewer commissions (i.e., incorrect responses other than the critical lure). Number of hits and critical lures did not differ between the groups.     

Immediate and sustaining effects of extrinsic rewards on specific exploratory behavior

The purpose of the present investigation was to examine the immediate and sustaining effects of monetary and social rewards on specific exploratory behavior. Specific exploratory behavior was conceived as a behavioral expression of intrinsic motivation and was measured by the number of additional requests for viewing blurred tachistoscopically presented slides of varying degrees of uncertainty. The results of the study showed that when monetary and social rewards were presented contingent on performance, exploration increased at the upper levels of uncertainty above a control group. It was also found that after removal, females who had previously received social rewards sustained a significantly higher level of exploration above the control group, while males who had previously received social rewards, as well as both males and females who had previously received monetary rewards, did not differ significantly from the control. The discrepany between these findings and previous findings is explained in terms of theoretical differences in defining and measuring intrinsic motivation.     

The effect on endurance of a verbal commitment versus exhortation,task information,and monetary incentives

Fifty-six male students worked to better their initial endurance scores on a second trial. Those who had formed a verbal commitment to do so performed significantly better than those offered a monetary incentive, exhortations to try hard, or information on how to deal with fatigue cues. The power of the “contract” in this study appears to be due not to additional specificity of information or to experimenter demands but more directly to the reinforcement value of having made a commitment in the presence of another.     

Rated helpfulness and partner-reported smoking cessation support across the pregnancy-postpartum continuum.

Support interventions have not changed smoking cessation rates significantly. The pregnancy-postpartum continuum presents a unique opportunity to examine patterns of support. Expectant couples (N = 477) were surveyed twice during pregnancy and 3 times postpartum. Partners reported positive and negative smoking-specific support; women reported the helpfulness of partner support. Linear trends suggest that women viewed support as more helpful during pregnancy than during postpartum. Partners' provision of positive support across the continuum depended on their smoking; provision of negative support depended on women's smoking. Partners who smoked provided lower levels of both positive and negative support, especially postpartum. Women who smoked throughout the pregnancy perceived their partner's negative support as helpful. Implications are that partners who smoke may need help staying engaged in the support process. Partners may provide negative support in response to women's smoking cues. Women who are struggling with cessation may not view negative support as negative.     

Bare’ing it all for the Camera: Women’s Experience of Having Erotic Photographs Taken

One area in which a change in women’s sexual behavior has been observed is in the growing number of women who are having erotic photographs taken of themselves by professional photographers. The current research is an attempt to learn more about this unstudied phenomenon. In-depth, semi-structured interviews were conducted with 16 women who have had erotic photographs taken by a professional photographer. The interviews were subjected to thematic analysis. The women described the erotic photography experience as having positive implications, such as increased body esteem and feelings of empowerment, as well as giving the women the ability to see themselves as sexual and an opportunity to celebrate their bodies. Having erotic photos taken also provided women with the opportunity to create a sexual image in a photograph on their own terms. The findings provide insight into the changing nature of attitudes about women’s sexuality.     

Decisions and revisions: the affective forecasting of changeable outcomes

People prefer to make changeable decisions rather than unchangeable decisions because they do not realize that they may be more satisfied with the latter. Photography students believed that having the opportunity to change their minds about which prints to keep would not influence their liking of the prints. However, those who had the opportunity to change their minds liked their prints less than those who did not (Study 1). Although the opportunity to change their minds impaired the postdecisional processes that normally promote satisfaction (Study 2a), most participants wanted to have that opportunity (Study 2b). The results demonstrate that errors in affective forecasting can lead people to behave in ways that do not optimize their happiness and well-being.     

Latent growth curve analyses of peer and parent influences on smoking progression among early adolescents.

Social influences on smoking uptake were examined in latent growth curve analyses of data from 1,320 youths assessed 5 times during 6th to 9th grade. Initial smoking stage predicted increases in number of friends who smoked, indicating selection; however, initial number of friends who smoked did not predict smoking stage progression, indicating no significant effect of socialization. Associations over time among smoking stage progression, affiliation with friends who smoke, and parenting behaviors were significant, suggesting dynamic, reciprocal relationships. Parental involvement, monitoring, and expectations provided direct protective effects against smoking progression as well as indirect effects, by limiting increases in number of friends who smoke. These results are consistent with the peer selection hypothesis, confirm the powerful association over time of social influences with smoking, and provide the first evidence that parenting behavior may protect against smoking progression by limiting increases in number of friends who smoke.     

Self-esteem and social desirability in relation to college students' retrospective perceptions of parental fairness and disciplinary practices

This study examined the relationships that fathers' and mothers' interactive of disciplinary behaviors have with college students' Coopersmith Self-esteem Inventory scores, Social Desirability scale scores, and their retrospective perceptions of their parents' fairness (50 sons, 84 daughters). Sons with higher scores in self-esteem reported that their mothers were fairer, had more interest in their activities, and were less likely to use verbal put-downs (abuse). Daughters with high self-esteem reported both of their parents were more interested in their activities, used praise more often, and refrained from verbal abuse. Also, these daughters reported that their mothers were more fair and encouraged their independence more. Daughters who reported their fathers as being more strict had lower self-esteem scores. There was no evidence that spanking, grounding, scolding, or monetary rewards had any effect on children's self-esteem scores, whether these methods were used by mothers or by fathers. Both sons and daughters who perceived their parents as being more fair also saw them as being more interested, having used praise more often, and having been less likely to have used verbal abuse. Daughters were less likely to view either fathers or mothers as being more fair if they had used spanking, grounding, or scolding more, and had been over-all stricter. Sons who had less strict fathers or who had received monetary rewards from them tended to regard them as being more fair. Higher social desirability scores correlated with higher self-esteem of women. Also, women with these higher social desirability scores tended to report that both their fathers and mothers used scolding and grounding less often.     

Internalization of conflict and attitude change

In a 2 × 2 × 2 design, eighty smokers were exposed to an anti-smoking appeal attributed either to an expert source (superior status) or a minority source (inferior status). Subjects were either allowed or not to smoke during the experiment. In addition subjects had to memorize part of the appeal and a recall task either followed after reading the appeal (completed task) or not (uncompleted task). The results show that the expert source produces more attitude change than the minority when the tension induced by the source is weakened (either by the opportunity to smoke or task completion). In contrast the minority has more impact when subjects are not able to smoke or when the task is not completed, which is to say when the conflict has been internalized. An explanation of these effects is offered in terms of the more defensive forms of resistance involved with respect to sources of superior status compared to more assertive forms with respect to minorities.