The power of a smile: Stronger working memory effects for happy faces in adolescents compared to adults

Theories of adolescent behaviour attribute increases in risk-taking and sensation-seeking in this age group to a heightened sensitivity to emotional stimuli on the one hand and a relatively immature cognitive control system on the other hand. However, little research has outlined to what extent relevant and irrelevant emotional stimuli bias the imbalance between affective processing and cognitive control. Thirty-three adolescents (19 females, aged 12–14) and 37 adults (18 females, aged 18–29) completed two attentional conditions of an emotional face working memory (WM) 0-back/2-back task. Participants were asked to attend to the emotional facial expression in the “relevant” emotion condition, and to the gender of the face in the “irrelevant” condition. The results revealed a WM improvement for happy faces in the relevant condition in both age groups, and an impairment for irrelevant happy faces in adolescents, but not adults. Furthermore, the difference between both attentional conditions for happy faces was larger in adolescents than adults. Results are discussed within the framework of theories of adolescent behaviour.     

The Relationship Between Child-Reported Positive Affect and Parent-Reported Emotional and Behavioral Problems in ADHD Youth

Although the adaptive role of positive affect (PA) in childhood internalizing disorders is well-established, less is known about PA in children with Attention-Deficit/Hyperactivity Disorder (ADHD). In this cross-sectional study, we examined associations between child-reported PA and parent-reported emotional and behavioral problems in youth with ADHD using multiple hierarchical regression analyses. Participants included 848 ethnically diverse youth (253 youth with ADHD, 595 with other or no diagnoses; age range 6.12–19.65) referred for mental health assessments. Study measures included the Child Behavior Checklist (CBCL) and the Positive and Negative Affect Scale for Children (PANAS-C). Results indicated that higher levels of child-reported PA were associated with greater parental reports of total and internalizing problems among youth with ADHD but not in other clinic-referred youth. Specifically, child self-reports of PA were positively associated with parental reports of anxious/depressed and somatic problems in youth with ADHD. In addition, associations between child-reported PA and parent-reported problems differed by type of ADHD comorbidity. Findings suggest that at higher levels, PA in youth with ADHD might exert a paradoxical effect and be a subtle risk factor for or an indicator of parent-reported internalizing problems among youth with ADHD only and youth with ADHD and a comorbid externalizing disorder but not for youth with ADHD and a comorbid internalizing disorder or youth without ADHD. Discrepancies between child-reported PA and parent-reported problems may influence treatment planning and treatment response. Further clinical and theoretical implications for child therapists and parents are discussed.     

The effect of identical word pairs on people's metamemory judgments: What are the contributions of processing fluency and beliefs about memory?

Judgments of learning (JOLs) are higher for identical pairs (dog–dog) than for related pairs (dog–cat). This identical effect may be mediated (a) by processing fluency (i.e., identical pairs are processed faster than related pairs) or (b) by a belief that identical pairs are better remembered or (c) by both factors. In the present work, we assessed the contribution of both factors. We evaluated whether a measure of processing fluency (i.e., self-paced study) mediated the relationship between pair type and JOLs (Experiment 1) and attempted to disrupt processing fluency using an AlTeRnAtInG presentation format (Experiment 2). We also evaluated whether judgments made in the absence of processing fluency demonstrated the identical effect (Experiment 3), and, finally, we had participants read a vignette about an experiment that included both pair types and estimate which pairs would be best remembered (Experiment 4). Evidence from all experiments converged on the conclusion that people's beliefs about how variables affect memory—and not differential fluency—best explain the identical effect, although we cannot entirely rule out the possibility that fluency plays a small role. The outcomes were consistent with the analytic-processing theory of JOLs—namely, when instructed to make JOLs, people adopt an analytic problem-solving approach that involves identifying variation across pairs that plausibly relate to memory and then use this variation to make JOLs.     

Life Satisfaction and International Migration: a Field Theoretic Measurement Model

Applied Research in Quality of Life - This article explores the use of migration data for the measurement of life satisfaction as an alternative to data collection by standardized interviews. It...     

A Psychometric Investigation of the Ohio Scales,Short Form,Problem Severity Domain,Youth- and Caregiver-Report Versions

The current study examined the extent to which the Ohio Scales, Short Form, Problem Severity domain was able to perform as a reliable and valid measure within a large community mental health sample of multiethnic youth and families in Hawai?i. Using a sample of 1,125 youth participants, who were 59.1% male (n = 665), with a mean age of 12.96 (SD = 3.4), confirmatory factor analyses pointed to four factors (Externalizing, Delinquency, Anxiety, Depression), with subscale internal reliabilities varying slightly. The majority of convergence patterns between Problem Severity domain and related Child and Adolescent Functional Assessment Scale subscales were significantly correlated in the expected directions. Problem Severity subscale scores were mostly able to discriminate between youth with and without pertinent mental health diagnoses. Youth- and caregiver-report Problem Severity domain subscale and total scores were significantly correlated in the predicted directions. Finally, significant youth improvement was evident at 3-month follow-up, and Problem Severity intake and 3-month follow-up scores were significantly and positively related to one another. Implications and suggestions for future research are discussed.

     

How to consistently link extraversion and intelligence to the catechol-O-methyltransferase (COMT) gene: on defining and measuring psychological phenotypes in neurogenetic research

The evidence for associations between genetic polymorphisms and complex behavioral/psychological phenotypes (traits) has thus far been weak and inconsistent. Using the well-studied Val158Met polymorphism of the catechol-O-methyltransferase (COMT) gene as an example, we demonstrate that using theoretical models to guide phenotype definition and measuring the phenotypes of interest with a high degree of specificity reveals strong gene-behavior associations that are consistent with prior work and that would have otherwise gone unnoticed. Only after statistically controlling for irrelevant portions of phenotype variance did we observe strong (Cohen's d = 0.33-0.70) and significant associations between COMT Val158Met and both cognitive and affective traits in a healthy male sample (N = 201) in Study 1: Carriers of the Met allele scored higher in fluid intelligence (reasoning) but lower in both crystallized intelligence (general knowledge) and the agency facet of extraversion. In Study 2, we conceptually replicated the association of COMT Val158Met with the agency facet of extraversion after partialing irrelevant phenotype variance in a female sample (N = 565). Finally, through reanalysis of a large published data set we showed that Met allele carriers also scored higher in indicators of fluid intelligence after partialing verbal fluency. Because the Met allele codes for a less efficient variant of the enzyme COMT, resulting in higher levels of extrasynaptic prefrontal dopamine, these observations provide further support for a role for dopamine in both intelligence and extraversion. More importantly, the present findings have important implications for the definition of psychological phenotypes in neurogenetic research.     

The cost of collaboration: why joint decision making exacerbates rejection of outside information

Prior investigators have asserted that certain group characteristics cause group members to disregard outside information and that this behavior leads to diminished performance. We demonstrate that the very process of making a judgment collaboratively rather than individually also contributes to such myopic underweighting of external viewpoints. Dyad members exposed to numerical judgments made by peers gave significantly less weight to those judgments than did individuals working alone. This difference in willingness to use peer input was mediated by the greater confidence that the dyad members reported in the accuracy of their own estimates. Furthermore, dyads were no better at judging the relative accuracy of their own estimates and the advisor's estimates than individuals were. Our analyses demonstrate that, relative to individuals, dyads suffered an accuracy cost. Specifically, if dyad members had given as much weight to peer input as individuals working alone did, then their revised estimates would have been significantly more accurate.     

The bias against creativity: why people desire but reject creative ideas

People often reject creative ideas, even when espousing creativity as a desired goal. To explain this paradox, we propose that people can hold a bias against creativity that is not necessarily overt and that is activated when people experience a motivation to reduce uncertainty. In two experiments, we manipulated uncertainty using different methods, including an uncertainty-reduction prime. The results of both experiments demonstrated the existence of a negative bias against creativity (relative to practicality) when participants experienced uncertainty. Furthermore, this bias against creativity interfered with participants' ability to recognize a creative idea. These results reveal a concealed barrier that creative actors may face as they attempt to gain acceptance for their novel ideas.