Using the IRAP to Investigate Gender Biases Towards ADHD and Anxiety

The Psychological Record - Teachers’ attitudes towards common disorders such as ADHD and anxiety are important to investigate, given that teachers play a significant role in the lives of...     

Duration of US Residence And Resource Needs In Immigrant Families With Young Children

Journal of Child and Family Studies - To mitigate the negative impact of resource needs on child health, practices serving low-income immigrant families have implemented screening programs to...     

Phthalic acid amygdalopetal lesion of the nucleus basalis magnocellularis induces reversible memory deficits in rats

The basolateral amygdala (BLA) is extensively implicated in emotional learning and memory. The current study investigated the contribution of cholinergic afferents to the BLA from the nucleus basalis magnocellularis in influencing aversive learning and memory. Sprague-Dawley rats were given permanent unilateral phthalic acid (300 ng) lesions of the nucleus basalis magnocellularis and were chronically implanted with cannulas aimed at the ipsilateral BLA. Lesioned rats showed a pronounced inhibitory avoidance task retention deficit that was attenuated by acute posttraining infusions of the muscarinic cholinergic agonist oxotremorine (4 ng) or the indirect agonist physostigmine (1 microg) into the BLA. Continuous multiple-trial inhibitory avoidance training and testing revealed that lesioned rats have a mild acquisition deficit, requiring approximately 1 additional shock to reach the criterion, and a pronounced consolidation deficit as indicated by a shorter latency to enter the shock compartment on the retention test. Because lesioned rats did not differ from sham-operated controls in performance on a spatial water maze task or in shock sensitivity, it is not likely that the memory impairments produced by the phthalic acid lesions are due to any general sensory or motor deficits. These findings suggest that the dense cholinergic projection from the nucleus basalis magnocellularis to the BLA is involved in both the acquisition and the consolidation of the aversive inhibitory avoidance task.     

Changes in body image during cognitive-behavioral treatment in women with bulimia nervosa

The purposes of this study were: (1) to examine multidimensional aspects of body image of individuals with bulimia nervosa (BN) at pre-treatment, post-treatment, and at follow-up, compared to a group of participants without BN; and (2) to investigate whether measures of body image predicted outcome at post-treatment and follow-up. The clinical sample consisted of 109 females with BN who were enrolled in a 12-week cognitive-behavioral group treatment program. Participants were assessed at baseline, at the completion of treatment, and at 1- and 6-month follow-up visits. The 82 females who comprised the non-bulimic sample were assessed at comparable time intervals. At baseline, the participants with BN reported greater body dissatisfaction and overestimated body size to a significantly greater degree than the comparison group, and reported a significantly smaller ideal size relative to perceived size. Results at the end of treatment indicated significant improvement in self-reported attitudinal disturbance and size overestimation, with continued reductions at follow-up. Logistic regression analyses did not demonstrate a predictive relationship between body image measures at baseline and outcome at post-treatment or follow-up, or between post-treatment and follow-up. Implications for treatment include specifying the source of body image-related distress and enhancing treatment efforts for perceptual and attitudinal aspects of body image.     

The gestures ASL signers use tell us when they are ready to learn math

The manual gestures that hearing children produce when explaining their answers to math problems predict whether they will profit from instruction in those problems. We ask here whether gesture plays a similar role in deaf children, whose primary communication system is in the manual modality. Forty ASL-signing deaf children explained their solutions to math problems and were then given instruction in those problems. Children who produced many gestures conveying different information from their signs (gesture-sign mismatches) were more likely to succeed after instruction than children who produced few, suggesting that mismatch can occur within-modality, and paving the way for using gesture-based teaching strategies with deaf learners.     

Electroencephalogram and heart rate measures of working memory at 5 and 10 months of age

We recorded electroencephalogram (EEG; 6-9 Hz) and heart rate (HR) from infants at 5 and 10 months of age during baseline and performance on the looking A-not-B task of infant working memory (WM). Longitudinal baseline-to-task comparisons revealed WM-related increases in EEG power (all electrodes) and EEG coherence (medial frontal-occipital electrode pairs) at both ages. WM-related decreases in HR were only present at 5 months, and WM-related increases in EEG coherence became more localized by 10 months. Regression analyses revealed that baseline-to-task changes in psychophysiology accounted for variability in WM performance at 10 but not 5 months. HR and EEG power (medial frontal and lateral frontal electrodes) were unique predictors of variability in 10-month WM performance. These findings are discussed in relation to frontal lobe development and represent the first comprehensive longitudinal analysis of age-related changes in the behavioral and psychophysiological correlates of WM.     

The analysis of zero-inflated count data: beyond zero-inflated Poisson regression

Infrequent count data in psychological research are commonly modelled using zero-inflated Poisson regression. This model can be viewed as a latent mixture of an "always-zero" component and a Poisson component. Hurdle models are an alternative class of two-component models that are seldom used in psychological research, but clearly separate the zero counts and the non-zero counts by using a left-truncated count model for the latter. In this tutorial we revisit both classes of models, and discuss model comparisons and the interpretation of their parameters. As illustrated with an example from relational psychology, both types of models can easily be fitted using the R-package pscl.     

Why do women opt out? Sense of belonging and women's representation in mathematics

Sense of belonging to math-one's feelings of membership and acceptance in the math domain-was established as a new and an important factor in the representation gap between males and females in math. First, a new scale of sense of belonging to math was created and validated, and was found to predict unique variance in college students' intent to pursue math in the future (Studies 1-2). Second, in a longitudinal study of calculus students (Study 3), students' perceptions of 2 factors in their math environment-the message that math ability is a fixed trait and the stereotype that women have less of this ability than men-worked together to erode women's, but not men's, sense of belonging in math. Their lowered sense of belonging, in turn, mediated women's desire to pursue math in the future and their math grades. Interestingly, the message that math ability could be acquired protected women from negative stereotypes, allowing them to maintain a high sense of belonging in math and the intention to pursue math in the future.     

A Parable, A Pearl and “Popular”? How the Broadway Musical Wicked—Especially Elphaba’s Character—May Assist Adolescent Girls to Claim Their Uniqueness

In this essay I provide a brief exegesis of the parable of the ??pearl of great price?? (Matthew 13:45?C46) as an introduction to an examination of Elphaba??s character in the Broadway musical Wicked [as distinguished from her character in Gregory Maguire??s novel, Wicked (1996)] and the potential value this character has for pastoral care with adolescent girls who struggle with the need to belong as well as the need to be themselves. I argue that Wicked may be understood as a twenty-first century parable that appeals to many, adults and adolescents alike, but it is especially appealing to teenage girls because it ??taps into a certain teenage angst?? (Zinoman 2005) that relates to the quest for popularity, a first true love, and beauty makeovers. Elphaba??s seriousness has a certain kind of spiritual nature which may be related to her green skin (James 1984, p. 160) that may encourage adolescent girls to adopt their own spiritual natures and enable them to claim their own voices even as Elphaba finally ??defies gravity?? and learns to fly.