A paradoxical dissociation in the effects of midazolam on recollection and automatic processes in the process dissociation procedure

This study used midazolam-induced amnesia to explore the plausibility of the estimates provided by the process dissociation procedure (PDP), which is designed to estimate the contributions of recollection (R) and automatic (A) processes to implicit memory performance. In a double-blind, placebo-controlled, within-subject design with 24 participants, single midazolam doses were administered intravenously, and word stem completion performance was used to calculate PDP estimates. A dissociation was observed such that midazolam decreased R but increased A estimates relative to placebo. Given that a manipulation that induces amnesia would not be expected to facilitate a memory process, these results add to the accumulating body of evidence suggesting that PDP estimates are not always theoretically plausible. Such evidence raises important questions about the use of the PDP.     

Trajectories leading to school-age conduct problems

The present study applied a semiparametric mixture model to a sample of 284 low-income boys to model developmental trajectories of overt conduct problems from ages 2 to 8. As in research on older children, 4 developmental trajectories were identified: a persistent problem trajectory, a high-level desister trajectory, a moderate-level desister trajectory, and a persistent low trajectory. Follow-up analyses indicated that initially high and low groups were differentiated in early childhood by high child fearlessness and elevated maternal depressive symptomatology. Persistent problem and high desister trajectories were differentiated by high child fearlessness and maternal rejecting parenting. The implications of the results for early intervention research are discussed, with an emphasis on the identification of at-risk parent-child dyads.     

Inspiration as a psychological construct

Inspiration has received little theoretical or empirical attention within psychology. Inspiration is conceptualized herein as a general construct characterized by evocation, motivation, and transcendence. In Studies 1a and 1b, a trait measure of inspiration was developed and was found to have strong psychometric properties. Studies 2a-2c documented a nomological network consistent with the present conceptualization. Study 3 related inspiration to the holding of U.S. patents. Study 4 linked trait inspiration to daily experiences of inspiration, extended the nomological network to the state level, documented antecedents and consequences, and established incremental validity. This research provides a foundation for further study of inspiration, both as a general construct and in specific content domains (e.g., religion, creativity, interpersonal relations).     

A motivational analysis of defensive pessimism and self-handicapping

Two studies examined motivational influences on and correlates of defensive pessimism and self-handicapping and investigated the relationship between these two cognitive strategies and performance attainment. The findings indicated that defensive pessimism and self-handicapping have similar motivational profiles, with the primary difference being that self-handicapping represents the absence of approach motivation in the achievement domain, as well as the presence of avoidance motivation. Self-handicapping, but not defensive pessimism, was shown to undermine performance-attainment, and performance-avoidance goals were validated as mediators of this negative relationship. Issues regarding the functional nature of the two cognitive strategies are discussed.     

Advancing our understanding of intergenerational continuity in antisocial behavior

This commentary reviews the major findings of this set of 4 papers on intergenerational continuity in antisocial behavior; it identifies strengths and remaining challenges, and discusses potential policy implications of the research. As a group, these researchers have raised the methodological bar for future work in this area, using prospective designs with multiple informants and methods to test the influences of G2 parenting and adolescent antisocial behavior in mediating continuity between G1 parenting and G3 early disruptive behavior. The pattern of findings is discussed with respect to gender of G2 and social context. The inherent challenges of conducting intergenerational research are also highlighted, within the context of offering recommendations for improving future intergenerational investigations and their feasibility.     

Acknowledgment of Reviewers

Dedication

Acknowledgment of Reviewers     

A Lay Perspective on the Accuracy of Eyewitness Testimony1

To understand more about what laypeople think they “know” about eyewitness testimony, 276 jury-eligible university students were asked to indicate what factors they believe affect the accuracy of eyewitness testimony. In contrast to the large proportion of eyewitness-memory research that concerns system variables, the lay respondents overwhelmingly generated factors related to estimator variables, while system-variable factors such as police questioning and identification procedures were rarely mentioned. Respondents also reported that their own common sense and everyday life experiences were their most important sources of information about the accuracy of eyewitness testimony. Not only do these results clarify the need for further research on the lay perspective of eyewitness testimony, but they also provide some insight into the way in which many jurors might approach cases involving eyewitness evidence.     

Weapon Focus and Gender Differences in Eyewitness Accuracy: Arousal Versus Salience

Competing theories of arousal versus salience and object enhancement vs. reduced perceptual processing as explanations for the weapon focus effect in eyewitness identification were examined. Male and female students ( N = 200) viewed a videotape of a male or female intruder rudely barging into a classroom while carrying a book, a gun, or an unusual object and demanding to know the whereabouts of another student. Feature accuracy recall of both the intruder and the object were assessed on a postexperimental questionnaire. Results supported the salience and reduced-perceptual-processing hypotheses, suggesting that weapon focus may be a special instance of a more general salient object effect. An own-gender bias in eyewitness identification was replicated when no weapon or unusual objects distracted eyewitnesses, but was reversed when a weapon or an unusual object was present.     

Sexy red: Perceived sexual receptivity mediates the red-attraction relation in men viewing woman

In many non-human primate species, female red displays are a signal of sexual receptivity and this signal attracts male conspecifics. In the present research, we proposed and tested a human analog whereby perceived sexual receptivity mediates the relation between red and sexual attraction in men viewing women. Two experiments were conducted, each of which provided support for the hypothesized mediational model. Experiment 1 documented the mediational role of perceived sexual receptivity using the experimental–causal-chain approach, and Experiment 2 did so using the measurement-of-mediation approach. Alternative mediator variable candidates were ruled out, and participants showed no evidence of awareness of the red effect. These findings document red as a subtle, but surprisingly powerful environmental stimulus that can serve parallel functions in the mating game for human and non-human primates.     

Preschool boys' development of emotional self-regulation strategies in a sample at risk for behavior problems

Little longitudinal research has been conducted on changes in children's emotional self-regulation strategy (SRS) use after infancy, particularly for children at risk. In this study, the authors examined changes in boys' emotional SRS from toddlerhood through preschool. Repeated observational assessments using delay of gratification tasks at ages 2, 3, and 4 years were examined with both variable- and person-oriented analyses in a low-income sample of boys (N = 117) at risk for early problem behavior. Results were consistent with theory on emotional SRS development in young children. Children initially used more emotion-focused SRS (e.g., comfort seeking) and transitioned to greater use of planful SRS (e.g., distraction) by 4 years of age. Person-oriented analysis using trajectory analysis found similar patterns from 2 to 4 years, with small groups of boys showing delayed movement away from emotion-focused strategies or delay in the onset of regular use of distraction. The results provide a foundation for future researchers to examine the development of SRS in low-income young children.