A randomized controlled trial of the effect of D-cycloserine on extinction and fear conditioning in humans

Previous research has shown that D-cycloserine (DCS) facilitates extinction of Pavlovian fear conditioning in rats and enhances exposure therapy in humans. The aim of this study was to test the effect of DCS on extinction of fear conditioning in humans. In three experiments, 238 participants were given either DCS (50 or 500 mg) or placebo 2-3 h before extinction training following a differential shock conditioning paradigm. Clear extinction and recovery (return of fear) effects were observed on both skin conductance and self-reported shock expectancy measures in three studies. DCS had no influence on these effects. The same pattern was observed when the analysis was restricted to aware participants or to good conditioners, when fear-relevant cues (pictures of snakes) were used as the conditioned stimuli, or when analysis was restricted to heightened snake-fearful participants. These results suggest that DCS may not enhance the extinction, or prevent the recovery, of learned fear in a differential Pavlovian conditioning paradigm in humans. Further experimental research is needed to better understand the mechanisms underlying the therapeutic effects of DCS.     

Relationships between anger, symptoms, and cognitive factors in OCD checkers

The purpose of this study was to examine whether individuals diagnosed with obsessive-compulsive disorder (OCD) with primary checking compulsions report higher levels of trait anger and anger expression compared with a student control group, and whether trait anger and anger expression are correlated with specific beliefs and interpretations that are common among individuals who compulsively check. A group of individuals with OCD reporting significant checking compulsions (n=33) and a group of undergraduate students (n=143) completed a questionnaire package that included measures of trait anger and anger expression, as well as measures of obsessive-compulsive symptoms and beliefs. The compulsive checking group reported greater trait anger, though not greater anger expression, than the student control group. Furthermore, beliefs concerning perfectionism and intolerance of uncertainty were positively correlated with anger expression and trait anger among compulsive checkers but not among the student control group. The implications of these findings are discussed in terms of cognitive-behavioural treatments for and models of compulsive checking in OCD.     

Test-Taker Reactions to the Selection Process: Effects of Outcome Favorability, Explanations, and Voice on Fairness Perceptions

This study examined the effects of providing an explanation and voice on fairness perceptions and reactions of test takers under favorable and unfavorable selection decisions. Participants took either a cognitive ability test or an overt integrity test in a simulated selection situation. Then, the voice manipulation was introduced. Participants were informed of the hiring decision with or without an explanation. Results showed that type of test had effects on procedural fairness perceptions such that these reactions were more positive when a cognitive ability test was used. The results of voice and explanation manipulations on fairness perceptions indicated that providing an explanation had a positive effect on perceptions but, surprisingly, face-validity perceptions were less favorable when participants had voice opportunity.     

On being happy but fearing failure: The effects of mood on self-handicapping strategies

Does temporary mood influence people’s tendency to engage in self-handicapping behaviors? Based on past research on self-handicapping and recent work on affect and social behaviors, this experiment predicted and found that positive mood significantly increased the tendency to engage in two kinds of self-handicapping strategies. Participants (N = 94) first received contingent or non-contingent positive feedback about performance on a task of ‘cognitive abilities’, and then underwent a positive, neutral, or negative mood induction using video films. Self-handicapping was assessed in terms of their subsequent preference for (a) drinking a performance-enhancing, or performance-inhibiting herbal tea, and (b) engaging or not engaging in performance-enhancing cognitive practice. As predicted, happy mood and non-contingent feedback significantly increased self-handicapping on both measures. The implications of these results for everyday performance tasks, and for recent affect-cognition theories, are discussed.     

Further ironies of suppression: Stereotype and counterstereotype accessibility

Three experiments explored the accessibility of stereotypes and counterstereotypes following stereotype suppression. Using a lexical decision task, experiment 1 demonstrated that the counterstereotype showed greater accessibility following stereotype suppression compared to stereotype expressers and no prime control participants. Using a person perception task, experiment 2 revealed that suppression can make both the stereotype and the counterstereotype more accessible. Experiment 3 manipulated cognitive load and found evidence that the stereotype and counterstereotype are made accessible through two different processes associated with suppression: The stereotype is made accessible through the more automatic monitoring system, whereas the counterstereotype is made accessible through the resource-dependent operating system. The three experiments demonstrate a novel lack of inhibition of the counterstereotype by the stereotype, provide a clear demonstration of hyperaccessibility of suppressed stereotypes by comparing stereotype suppression to a stereotype expression condition, and contribute to the priming literature by demonstrating the interactive effects of accessibility, applicability, and judgment order on person perception evaluations.     

IS MATCHING INNATE?

Experimentally naive mice matched the proportions of their temporal investments (visit durations) in two feeding hoppers to the proportions of the food income (pellets per unit session time) derived from them in three experiments that varied the coupling between the behavioral investment and food income, from no coupling to strict coupling. Matching was observed from the outset; it did not improve with training. When the numbers of pellets received were proportional to time invested, investment was unstable, swinging abruptly from sustained, almost complete investment in one hopper, to sustained, almost complete investment in the other-in the absence of appropriate local fluctuations in returns (pellets obtained per time invested). The abruptness of the swings strongly constrains possible models. We suggest that matching reflects an innate (unconditioned) program that matches the ratio of expected visit durations to the ratio between the current estimates of expected incomes. A model that processes the income stream looking for changes in the income and generates discontinuous income estimates when a change is detected is shown to account for salient features of the data.     

Mapping the Hierarchical Structure of Coping: Unifying Empirical and Theoretical Perspectives

Consumer researchers have become increasingly interested in the study of coping. This research contributes to this emerging paradigm by investigating structural theories of coping using a hierarchical modeling approach to better understand the basic dimensional properties of this multifaceted construct. This research makes gains along several fronts. First, the authors empirically examine a new lower order theory of coping based on a comprehensive synthesis of the literature, reconciling nomenclatural and conceptual redundancies found in the structure of coping literature. Analyses across 2 studies using different methods offer support for a 2‐dimensional higher order model of coping. Finally, a third study using an experimental approach validates these findings by showing unique effects relating an approach‐avoidance based higher order model to theoretically predicted emotional antecedents. By examining the mapping of lower order coping strategies onto several higher order coping theories, this research addresses the extant disjuncture between coping theory and measurement found in the literature and offers reconciliation between these 2 perspectives. The findings suggest the need for future coping research to focus on other 2‐dimensional theories beyond problem‐focused versus emotion‐focused coping. The findings build on the synergies among the many coping perspectives, and the implications of a better understanding of coping's hierarchical structure for consumer researchers is discussed.     

Encoding of others’ beliefs without overt instruction

Under what conditions do people automatically encode and track the mental states of others? A recent investigation showed that when subjects are instructed to track the location of an object but are not instructed to track a belief about that location in a non-verbal false-belief task, they respond more slowly to questions about an agent’s belief, suggesting that belief information was not encoded or tracked automatically [Apperly, I. A., Riggs, K. J., Simpson, A., Samson, D., & Chiavarino, C. (2006). Is belief reasoning automatic? Psychological Science, 17, 841-844]. In the current experiments, we show that if belief probes occur closer in time to the events that signal the content of the agent’s false belief, responses to those probes are faster than responses to probes about reality, and as fast as responses to probes about belief when instructed to track them, suggesting (i) beliefs may get encoded automatically in response to certain cues and (ii) that belief information rapidly decays unless it is maintained via ‘top-down’ instructions.     

Prophetic Words for Psychologists: Particularity,Ethics and Peace

This essay seeks to consider the implications of the prophetic voice of Abraham Joshua Heschel. We argue that Heschel’s work offers important correctives to some of modern psychologies’ universalizing and reductive assumptions and activities. Specifically, we show that Heschel argues for an anthropology characterized by particularity, with a unique emphasis on the person’s standing in relation to God. Relatedly, we show how Heschel’s understanding challenges us to recognize that ethics is to precede ontology. Lastly, this primacy of ethics leads to a prophetic challenge toward becoming people of peace, systemically as well as individually. We conclude by applying Heschel’s admonishment to recent, specific activities of injustice and violence within the field of psychology. Heschel’s arguments are reviewed in a spirit of ecumenism, to pursue the ends of peace as a profession and as a society.