Reinforcement,Rationality, and Intentions: How Robust Is Automatic Reinforcement Learning in Economic Decision Making?

Reinforcement learning is often observed in economic decision making and may lead to detrimental decisions. Because of its automaticity, it is difficult to avoid. In three experimental studies, we investigated whether this process could be controlled by goal intentions and implementation intentions. Participants' decisions were investigated in a probability‐updating task in which the normative rule to maximize expected payoff (Bayes' rule) conflicted with the reinforcement heuristic as a simple decision rule. Some participants were asked to set goal intentions designated to foster the optimization of rational decision making, while other participants were asked to furnish these goal intentions with implementation intentions. Results showed that controlling automatic processes of reinforcement learning is possible by means of goal intentions or implementation intentions that focus decision makers on the analysis of decision feedback. Importantly, such beneficial effects were not achieved by simply instructing participants to analyze the feedback, without defining a goal as the desired end state from a first‐person perspective. Regarding intentions supposed to shut down reinforcement processes by controlling negative affect, effects were more complex and depended on the specified goal‐directed behavior. The goal intention to suppress the disappointment elicited by negative feedback was not effective in controlling reinforcement processes. Furnishing this goal with an implementation intention even backfired and strengthened unwanted reinforcement processes. In contrast, asking participants to keep cool in response to negative decision outcomes through the use of goal intentions or implementation intentions increased decisions in line with Bayes' rule. Copyright © 2017 John Wiley & Sons, Ltd.     

Sex Differences in Relationship Aggression Among Young Adults in Germany

The study examined the prevalence of physical aggression in the relationships of young adults in Germany. A convenience sample of 248 women and 400 men aged between 17 and 29 years provided reports of physical aggression shown toward and experienced by a partner using the revised Conflict Tactics Scales (CTS2). Sex differences were found for several physically aggressive behaviors measured by the CTS2, mostly for minor forms of physical aggression. All sex differences were in the direction of women scoring higher than men on the perpetration of aggressive acts, and men scoring higher than women on being the targets of partner aggression. The findings are discussed in the context of the current debate on sex differences in relationship aggression.     

Intentional faking of the single category Implicit Association Test and the Implicit Association Test

The Implicit Association Test (IAT) provides a relative measure of implicit association strengths between target and attribute categories. In contrast, the Single Category Implicit Association Test (SC-IAT) measures association strength with a single attribute category. This can be advantageous if a complementary category--as used in the IAT--cannot be composed or is undesired. If the SC-IAT is to be a meaningful supplement to the IAT, it should meet the same requirements. In an online experiment with a large and heterogeneous sample, the fakability of both implicit measures was investigated when measuring anxiety. Both measures were fakable through specific instruction (e.g., "Slow down your reactions") but unfakable through nonspecific faking instruction even though nonspecific instruction was given immediately before the critical blocks (e.g., "Alter your reaction times"). When comparing the methodological quality of both implicit measures, the SC-IAT had lower internal consistency than the IAT. Moreover, with specific faking instructions, the SC-IAT was possible to fake to a larger extent than the IAT.     

Causal and moral responsibility: Antecedents and consequences of group‐based guilt

In six studies (N = 1045) conducted in three European countries, we demonstrate distinctions between causal responsibility, group‐based guilt, and moral responsibility. We propose that causal responsibility is an antecedent of group‐based guilt linking the ingroup to previous transgressions against the victim group. In contrast, moral responsibility is a consequence of group‐based guilt and is conceptualized as a sociomoral norm to respond to the consequences of the ingroup's transgressions and the current needs of the victim group. As such, moral responsibility can be stimulated by group‐based guilt and directly predicts individual action intentions. Studies 1 and 2 focus on the conceptual distinctions among the three constructs. Study 3 tests the indirect effect of causal responsibility on moral responsibility via group‐based guilt. The remaining studies explore the mediating role of moral responsibility in associations between group‐based guilt and compensatory action tendencies, that is, financial compensation (study 4), approach and avoidance tendencies (study 5) and public apology (study 6). Together these studies show that causal and moral responsibility are psychologically distinct concepts from group‐based guilt and that moral responsibility plays an important role in shaping the effects of group‐based guilt on behavioral intentions. Copyright © 2011 John Wiley & Sons, Ltd.     

The Role of Friends’ Disruptive Behavior in the Development of Children’s Tobacco Experimentation: Results from a Preventive Intervention Study

Having friends who engage in disruptive behavior in childhood may be a risk factor for childhood tobacco experimentation. This study tested the role of friends’ disruptive behavior as a mediator of the effects of a classroom based intervention on children’s tobacco experimentation. 433 Children (52% males) were randomly assigned to the Good Behavior Game (GBG) intervention, a universal preventive intervention targeting disruptive behavior, and facilitating positive prosocial peer interactions. Friends’ disruptive behavior was assessed from age 7–10 years. Participants’ experimentation with tobacco was assessed annually from age 10–13. Reduced rates in tobacco experimentation and friends’ disruptive behavior were found among GBG children, as compared to controls. Support for friends’ disruptive behavior as a mediator in the link between intervention status and tobacco experimentation was found. These results remained after controlling for friends’ and parental smoking status, and child ADHD symptoms. The results support the role of friends’ disruptive behavior in preadolescents’ tobacco experimentation.     

Beyond one work day? A daily diary study on causal and reverse effects between experienced workplace incivility and behaving rude towards others

In this diary study with N = 348 employees, we examine whether the contagion effect of workplace incivility transfers beyond one work day that is whether the experience of workplace incivility is related to showing rude behaviours towards others the next day. Additionally, we examine whether ruminating in the evening of a work day and building an intention for revenge behaviour mediate this relationship, and explore whether a serial mediation process exists where experienced incivility triggers ruminative thoughts, which, in turn, increase the likelihood of intending to act, which transfers into actual rude behaviour the next day. Using a multilevel path analysis, our results confirmed a lagged relationship between workplace incivility one day and rude behaviours towards others the next day. Between-persons’ workplace incivility was also related to showing rude behaviour towards others. Neither rumination nor revenge behaviour intent proved to be mediators of this relationship. Additionally, the serial mediation process was not confirmed; however, parts of the process—namely the relationship between experienced workplace incivility and ruminating about work in the evening—received support. Importantly, the reverse relationship (i.e., showing rude behaviour one day leads to experiencing workplace incivility the next) was not supported in our analysis. By adding a new, daily time perspective, our study suggests that participants do not intentionally provoke episodes of incivility, but rather react to others’ incivility.     

Preschoolers' inhibition in their home: relation to temperament

Researchers assessed 58 preschoolers' reactions to an unfamiliar person and unfamiliar objects in their familiar home environment. Children participated in a 30-min procedure designed to elicit behavioral inhibition, including (a) a free-play period with a stranger present, (b) a structured interaction with the stranger, and (c) uncertainty-eliciting tasks. Behaviors representing the child's reactions toward the mother, stranger, and novel objects were coded. Mothers completed a temperament scale. Preschoolers exhibited behaviors indicative of inhibition toward unfamiliar social and nonsocial stimuli; behaviors remained stable across increasingly intrusive episodes. The approach/withdrawal component of temperament was related to behavioral inhibition. Individual differences in mood did not appear to be related to differences in inhibition. Parent reported temperament was related to researcher-observed behaviors.     

The brain generates its own sentence melody: a Gestalt phenomenon in speech perception

Brain processes underlying spoken language comprehension comprise auditory encoding, prosodic analysis and linguistic evaluation. Auditory encoding usually activates both hemispheres while language-specific stages are lateralized: analysis of prosodic cues are right-lateralized while linguistic evaluation is left-lateralized. Here, we investigated to what extent the absence of prosodic information influences lateralization. MEG brain-responses indicated that syntactic violations lead to early bi-lateral brain responses for syntax violations. When the pitch of sentences was flattened to diminish prosodic cues, the brain's syntax response was lateralized to the right hemisphere, indicating that the missing pitch was generated automatically by the brain when it was absent. This represents a Gestalt phenomenon, since we perceive more than is actually presented.     

Body image interventions in cognitive-behavioural therapy of binge-eating disorder: a component analysis

The present study sought to investigate effects of body exposure in the treatment of binge-eating disorder (BED). Cognitive-behavioural therapy with a body exposure component (CBT-E) was compared with CBT with a cognitive restructuring component focused on body image (CBT-C). Twenty-eight patients diagnosed with BED were randomly assigned to CBT-E or CBT-C, both delivered in a group format. Negative automatic thoughts about one's body, dysfunctional assumptions about shape and weight, and body dissatisfaction were assessed using experimental thought-sampling techniques, a clinical interview (Eating Disorder Examination), and self-report questionnaires. At posttreatment and at 4-month follow-up, CBT-E and CBT-C were equally effective in improving body image disturbance on all indicators assessed. Both CBT-E and CBT-C produced substantial and stable improvements in the specific and general eating disorder psychopathology. Results suggest that both treatment components are equally effective in the treatment of BED.