A Cerebral Hyperventilation Index for Electroencephalography

This study was an attempt to determine the effect of drive on probability learning. Each of two groups of Ss was divided into high- and low-drive groups on the basis of MAS scores. Each S was given 200 trials on a probability learning task, with 70 per cent reinforcement on one side and 30 per cent reinforcement on the other. At the .05 level, there was no difference between groups in probability choices, and neither group differed from the objective probability scores. The results are discussed in terms of the number of trials involved, the introduction of emotional arousal, and Hullian theory. On the basis of a comparison with the results of previous studies, it was suggested that investigators be cautious in generalizing probability learning results from one species to another.     

The Destructive Path of Addiction: Experiences of Six Parents Who are Substance Dependent

This qualitative study explored the experiences of five men and one woman who were parents, substance dependent, and receiving treatment. Data collected by observation and in-depth interviewing were analyzed using constant comparison method and thematic analysis. Findings were grouped into three categories: surviving my childhood and becoming an adult, the struggles of trying to be a parent, and the roles of spouses and extended family members. An overarching metathematic category, the destructive path and powerful appeal of addiction, describes why the participants reported feeling most comfortable in the role of drug addict and found order in the chaos in the addictive lifestyle.     

No evidence of racial discrimination in criminal justice processing: Results from the National Longitudinal Study of Adolescent Health

One of the most consistent findings in the criminological literature is that African American males are arrested, convicted, and incarcerated at rates that far exceed those of any other racial or ethnic group. This racial disparity is frequently interpreted as evidence that the criminal justice system is racist and biased against African American males. Much of the existing literature purportedly supporting this interpretation, however, fails to estimate properly specified statistical models that control for a range of individual-level factors. The current study was designed to address this shortcoming by analyzing a sample of African American and White males drawn from the National Longitudinal Study of Adolescent Health (Add Health). Analysis of these data revealed that African American males are significantly more likely to be arrested and incarcerated when compared to White males. This racial disparity, however, was completely accounted for after including covariates for self-reported lifetime violence and IQ. Implications of this study are discussed and avenues for future research are offered.     

If Empowerment Is the Goal...: Affirmative Action and social Interaction

The goal of affirmative action policies is to empower formerly disenfranchised groups. But what if the procedures used to implement these policies activate a set of social psychological processes that prevent the occurrence of productive social interactions between target-group and non-target-group members? With that question in mind, a conceptual model is developed which focuses on the potential effects of affirmative action procedures on social interactions between members of policy target and nontarget groups. To conceptualize these potential effects of procedures, the concept of a policy schema is introduced. Special attention is paid to the conditions under which beliefs about procedures contained in policy schemas will influence patterns of interactions between target-group and non-target-group members. With that as background, a call is made for more complete analyses of the social psychology of affirmative action.     

Predicting early emotion knowledge development among children of colour living in historically disinvested neighbourhoods: consideration of child pre-academic abilities,self-regulation,peer relations and parental education

ABSTRACT

Emotion knowledge, the ability to accurately perceive and label emotions, predicts higher quality peer relations, higher social competence, higher academic achievement, and fewer behaviour problems. Less is known, however, about predictors of early development of emotion knowledge. This study examines emotion knowledge development among children attending pre-Kindergarten and Kindergarten programmes in high-poverty urban schools. The study considers child pre-academic abilities, self-regulation, peer relations and parental education as predictors of emotion knowledge development over two years. The sample (n?=?1034) of children living in historically disinvested neighbourhoods was primarily Black (85%) and low-income (～61%). The sample was part of a longitudinal follow-up study of a cluster (school) randomised controlled trial in ten public elementary schools. Children’s emotion knowledge was assessed with a series of tasks three times over a two-year period. At baseline, parents and teachers reported on peer relations, children completed a test of pre-academic abilities, independent observers rated child self-regulation, and parents reported on their educational attainment. Results demonstrate that emotion knowledge increases over time, and pre-academic abilities, self-regulation, peer relations, and parent education independently predict children’s emotion knowledge. This study highlights multiple factors that predict emotion knowledge among primarily Black children living in historically disinvested neighbourhoods.     

Functional versus dysfunctional team change: Problem diagnosis and structural feedback for self-managed teams

We describe and examine three changes (personnel, process, and structure) that self-managed teams can make to remedy performance problems. We also discuss why self-managed teams may over-emphasize process and (to a lesser extent) personnel changes over structural changes. Furthermore, we describe and test two specific diagnostic feedback interventions aimed at helping teams make functional structural change. Seventy-eight 4-person teams of undergraduate students participated in two trials of a networked laboratory simulation task. All teams were initially structurally misaligned and subsequently received (a) no feedback, (b) one type of feedback only, or (c) both types of feedback. Results confirmed that structurally misaligned teams demonstrated dysfunctional change by changing process more frequently than structure, with detrimental effects for subsequent performance. When teams received the feedback interventions, however, they were more likely to change their structure and thereby improve their performance.     

The whole is more than the sum of its parts – Audiovisual processing of phonemes investigated with ERPs

In the current ERP study, an active oddball task was carried out, testing pure tones and auditory, visual and audiovisual syllables. For pure tones, an MMN, an N2b, and a P3 were found, confirming traditional findings. Auditory syllables evoked an N2 and a P3. We found that the amplitude of the P3 depended on the distance between standard and deviant. A smaller distance required more attention, which was reflected in a larger amplitude. An analysis of audiovisual material, after correction for visual activity, showed that McGurk type stimuli evoked brain responses that differed from both the standard and the congruent deviants. Finally, we found that congruent audiovisual stimuli elicited an N2 with a shorter latency and a P3 with a smaller amplitude than auditory stimuli. The current ERP study, thus, shows that for audiovisual processing the whole is more than the sum of its parts.     

Paternal Postnatal and Subsequent Mental Health Symptoms and Child Socio‐Emotional and Behavioural Problems at School Entry

Research on the effect of paternal mental health problems, particularly on young children, is based predominantly on clinical levels of depression. Furthermore, potential mediators such as marital discord have often been overlooked. This longitudinal community study assessed the association between paternal mental health symptoms in a community sample (N = 705) assessed at 3 months postnatally (Edinburgh Postnatal Depression Scale) and 36 months (General Health Questionnaire) and children's socio‐emotional and behavioural problems at 51 months (Strengths and Difficulties Questionnaire) as reported by mother, father and teacher. Controlling for socioeconomic status and maternal mental health symptoms at 3 and 36 months, paternal postnatal depressive symptoms predicted more father‐reported child problems at 51 months but, in contrast to previous findings, not mother‐reported problems. Paternal mental health symptoms at 36 months predicted both maternal and paternal reports of child problems at 51 months controlling for both paternal and maternal postnatal symptoms. Paternal mental health symptoms at 3 and 36 months were not significant predictors of teacher‐reported child problems. Postnatal marital discord and paternal mental health problems at 36 months both mediated the relationship between paternal postnatal symptoms and later child emotional and behavioural problems. Child gender did not moderate the relationship. Implications for interventions are discussed. Copyright © 2013 John Wiley & Sons, Ltd.     

Thirty Years Later: An Oncologist Reflects on Kubler-Ross's Work

As compared with conventional vaccine production systems, plant-made vaccines (PMVs) are said to enjoy a range of advantages including cost of production and ease of storage for distribution in developing countries. In this article, we introduce the science of PMV production, and address ethical issues associated with development and clinical testing of PMVs within three interrelated domains: PMVs as transgenic plants; PMVs as clinical research materials; and PMVs as agents of global health. We present three conclusions: first, while many of the ethical issues raised by PMVs are familiar, PMVs add a new dimension to old issues, and raise some novel issues for ethicists and policy-makers; secondly, it is premature to promise broad applicability of PMVs across the developing world without having demonstrated their feasibility; thirdly, in particular, proponents of PMVs as a solution to global health problems must, as a condition of the ethical conduct of their research, define the commercial feasibility of PMVs for distribution in the developing world.     

A genetic two-factor model of the covariation among a subset of Multidimensional Aptitude Battery and Wechsler Adult Intelligence Scale—Revised subtests

The phenotypic and genetic factor structure of performance on five Multidimensional Aptitude Battery (MAB) subtests and one Wechsler Adult Intelligence Scale—Revised (WAIS-R) subtest was explored in 390 adolescent twin pairs (184 monozygotic [MZ]; 206 dizygotic (DZ)). The temporal stability of these measures was derived from a subsample of 49 twin pairs, with test–retest correlations ranging from .67 to .85. A phenotypic factor model, in which performance and verbal factors were correlated, provided a good fit to the data. Genetic modeling was based on the phenotypic factor structure, but also took into account the additive genetic (A), common environmental (C), and unique environmental (E) parameters derived from a fully saturated ACE model. The best fitting model was characterized by a genetic correlated two-factor structure with specific effects, a general common environmental factor, and overlapping unique environmental effects. Results are compared to multivariate genetic models reported in children and adults, with the most notable difference being the growing importance of common genes influencing diverse abilities in adolescence.