The Theory of Planned Behavior and Ecstasy Use: Roles for Habit and Perceived Control Over Taking Versus Obtaining Substances

Despite increasing use of the illicit substance known as ecstasy , there is a paucity of research concerning psychosocial correlates of its use. A prospective study examined the ability of variables specified by the theory of planned behavior (TPB) to predict ecstasyuse intentions and behavior. Regression analyses showed that theory of reasoned action and TPB variables provided good prediction of intentions to use the substance. Moreover, support was obtained for a distinction between perceptions of behavioral control over taking ecstasy vs. control over obtaining the substance in the prediction of intentions. Habit contributed additional variance to the prediction of intentions, and reduced the effects of perceived behavioral control over taking ecstasy to nonsignificance. Ecstasy use over 2 months was directly predicted from intentions to use the substance.     

The modulating influence of category size on the classification of exception patterns

Generalization gradients to exception patterns and the category prototype were investigated in two experiments. In Experiment 1, participants first learned categories of large size that contained a single exception pattern, followed by a transfer test containing new instances that had a manipulated similarity relationship to the exception or a nonexception training pattern as well as distortions of the prototype. The results demonstrated transfer gradients tracked the prototype category rather than the feedback category of the exception category. In Experiment 2, transfer performance was investigated for categories varying in size (5, 10, 20), partially crossed with the number of exception patterns (1, 2, 4). Here, the generalization gradients tracked the feedback category of the training instance when category size was small but tracked the prototype category when category size was large. The benefits of increased category size still emerged, even with proportionality of exception patterns held constant. These, and other outcomes, were consistent with a mixed model of classification, in which exemplar influences were dominant with small-sized categories and/or high error rates, and prototype influences were dominant with larger sized categories.     

Valence specific response reversal deficits and risk for mania

Response reversal deficits are well documented in bipolar disorder (BD). Although frequently construed as an index of reward processing abnormalities, these response reversal deficits might simply result from more general cognitive inflexibility. Given that both are implicated in BD, our goal was to more carefully test whether reversal learning deficits are specific to reward processing or reflect more general cognitive inflexibility. To more carefully assess deficits, a novel variant of the response reversal task was used to separate responses to in reward versus punishment feedback. In addition, while response reversal deficits are well documented in BD, it is still unknown if these deficits are observable in people at risk for the disorder, whose performance would be unconfounded by medication use and illness course. To assess the presence of premorbid response reversal deficits, we tested students at risk for developing BD, as defined by the well-validated Hypomanic Personality Scale. Undergraduates (n?=?99) were randomly assigned to complete either a reward only or a punishment only version of a response reversal task. Mania risk was related to difficulty reversing responses following reward, but not punishment feedback. Findings suggest that a deficit in response reversal may be an index of reward dysregulation in BD, and that this deficit can be observed even in those at high risk for the development of BD.     

Compound-Schedules Approaches to Noncompliance: Teaching Children When to Ask and When to Work

Researchers have demonstrated for practitioners how to use multiple-schedules preparations to thin initially dense schedules of reinforcement during functional communication training, without sacrificing benefits associated with dense schedules of reinforcement for manding. However, special considerations may be required for practitioners to successfully apply this strategy to noncompliance. The purpose of our study was to evaluate whether multiple-schedules preparations could maintain contextually prescribed compliance and manding during interventions for noncompliance. For one participant, a multiple-schedules intervention was sufficient to establish socially valid outcomes. For the other, chained-schedules modifications were required before compliance emerged in relevant components.     

Treating Depression Among Adolescent Perinatal Women With a Dialectical Behavior Therapy–Informed Skills Group

Depression is a prevalent and impairing problem affecting both women and offspring during the perinatal (pregnancy and the postpartum) period. Despite this, few studies have examined treatments for perinatal adolescents with depressive symptoms. The present study examined the feasibility and preliminary outcomes of a dialectical behavioral therapy (DBT) informed skills group among depressed adolescent perinatal women (N = 25) recruited from both a public health parent education program and an adolescent obstetric clinic. A brief composite case example is included to illustrate how DBT skills were taught, practiced, and applied. Findings suggest the intervention was credible, acceptable, and associated with improvement in depression. Challenges with feasibility of enrolling and retaining adolescent perinatal women were evident, as approximately half of the enrolled participants did not complete the study. This study provides preliminary evidence that a DBT-informed skills group may be a promising intervention for depressed adolescent perinatal women and points to important directions for clinical practice and research, including treatment engagement and retention.     

The influence of Afrocentric facial features in criminal sentencing

Prior research has shown that within a racial category, people with more Afrocentric facial features are presumed more likely to have traits that are stereotypic of Black Americans compared with people with less Afrocentric features. The present study investigated whether this form of feature-based stereotyping might be observed in criminal-sentencing decisions. Analysis of a random sample of inmate records showed that Black and White inmates, given equivalent criminal histories, received roughly equivalent sentences. However, within each race, inmates with more Afrocentric features received harsher sentences than those with less Afrocentric features. These results are consistent with laboratory findings, and they suggest that although racial stereotyping as a function of racial category has been successfully removed from sentencing decisions, racial stereotyping based on the facial features of the offender is a form of bias that is largely overlooked.     

How similar are fluid cognition and general intelligence? A developmental neuroscience perspective on fluid cognition as an aspect of human cognitive ability

This target article considers the relation of fluid cognitive functioning to general intelligence. A neurobiological model differentiating working memory/executive function cognitive processes of the prefrontal cortex from aspects of psychometrically defined general intelligence is presented. Work examining the rise in mean intelligence-test performance between normative cohorts, the neuropsychology and neuroscience of cognitive function in typically and atypically developing human populations, and stress, brain development, and corticolimbic connectivity in human and nonhuman animal models is reviewed and found to provide evidence of mechanisms through which early experience affects the development of an aspect of cognition closely related to, but distinct from, general intelligence. Particular emphasis is placed on the role of emotion in fluid cognition and on research indicating fluid cognitive deficits associated with early hippocampal pathology and with dysregulation of the hypothalamic-pituitary-adrenal axis stress-response system. Findings are seen to be consistent with the idea of an independent fluid cognitive construct and to assist with the interpretation of findings from the study of early compensatory education for children facing psychosocial adversity and from behavior genetic research on intelligence. It is concluded that ongoing development of neurobiologically grounded measures of fluid cognitive skills appropriate for young children will play a key role in understanding early mental development and the adaptive success to which it is related, particularly for young children facing social and economic disadvantage. Specifically, in the evaluation of the efficacy of compensatory education efforts such as Head Start and the readiness for school of children from diverse backgrounds, it is important to distinguish fluid cognition from psychometrically defined general intelligence.     

Childhood Overweight and Obesity: Maternal and Family Factors

Treatment programs for childhood overweight and obesity have highlighted the importance of the family in treatment. Considering this, it is surprising that few studies have examined the role of family factors in the development of childhood overweight and obesity. The objective of this study was to examine which family and maternal factors predict increases in weight in boys and girls during middle to late childhood. This study used longitudinal data from the childhood growth and development (GAD) Study. The GAD Study involved 286 healthy weight, overweight and obese children, aged 6–13 years at baseline, who completed baseline, 1-year follow-up and 2-year follow-up assessments. Overweight/obese children were recruited from clinical and community settings. A broad range of maternal and family factors were assessed. Linear mixed models were used to identify which factors predicted child Body Mass Index (BMI) z-scores over time. For community-based children, maternal BMI and single-parent family structure were significant longitudinal predictors of child BMI z-scores. For the clinical participants, low family income was the only significant multivariate predictor of child BMI z-scores. The strong association between child BMI, maternal BMI and family structure confirms the need to target prevention and intervention efforts for childhood overweight and obesity towards families with overweight parents, particularly single-parent families.