Performance dissociation during verbal and spatial working memory tasks

Past research has inconsistently distinguished the neural substrates of various types of working memory. Task design and individual performance differences are known to alter patterns of brain response during working-memory tasks. These task and individual differences may have produced discrepancies in imaging findings. This study of 50 healthy adults (M(age) = 19.6 yr., SD = .8) examined performance during various parametric manipulations of a verbal and spatial n-back working-memory task. Performance systematically dissociated on the basis of working-memory load, working memory type, and stimulus difficulty, with participants having greater accuracy but slower response time during conditions requiring verbal versus spatial working memory. These findings hold implications for cognitive and neuroimaging studies of verbal and spatial working memory and highlight the importance of considering both task design and individual behavior.     

A Funny Thing Happened on the Way to the Ethics Board: Studying the Meaning of Farm Life for Farm Children

What can one expect to unfold when they choose to do a face-to-face study of children on the farm and their use of space in rural southwestern Ontario? The process of getting the research off the ground from an ethics point of view was one where it was anything but normative, and to a large extent, a grueling process. This article situates the researcher’s dilemma and lays out the unfolding of the research process with reference to the Tri-Council Policy Statement on Ethical Conduct for Research Involving Humans and the major components found to trouble a research ethics board on a university campus. Last, academic freedom and the rights of researchers are considered in the context of undertaking the proposed research agenda.     

Psychopathic Traits in Youth: Is There Evidence for Primary and Secondary Subtypes?

The current study employed model-based cluster analysis in a sample of male adolescent offenders (n = 94) to examine subtypes based on psychopathic traits and anxiety. Using the Psychopathy Checklist: Youth Version (PCL:YV; Forth et al. 2003) and the self-report Antisocial Process Screening Device (APSD; Caputo et al. 1999), analyses identified three clusters in males that varied in the severity of psychopathic traits (low, moderate, and high) and anxiety. The high psychopathic group exhibited more negative personality traits and was judged to be at greater risk for dangerousness whereas the low psychopathic group exhibited more positive personality traits and was judged to be at lower risk for dangerousness. Implications regarding potential developmental differences between adolescent and adult psychopathy, as well as treatment considerations are discussed.     

Naive theories and causal deduction

Evidence is presented that implicates two factors in deductive reasoning about causality. The factors are alternative causes and disabling conditions (factors that prevent effects from occurring in the presence of viable causes). A causal analysis is presented in which these factors impact on judgments concerning causal necessity and sufficiency, which in turn determine deductive entailment relations. In Experiment 1, these factors were found to impact causal deductive judgments more strongly than did logical form. In Experiment 2, causal deductive judgments were found to vary as a function of familiarity with a particular causal relationship: The more familiar the causal relationship, the less willing reasoners were to accept conclusions based on them.     

TWO MEASURES OF PREFERENCE DURING FORCED-CHOICE ASSESSMENTS

A forced-choice preference assessment was conducted in which two dependent measures were used to select preferred stimuli: (a) approach responding and (b) latency to the first aberrant response. Stimuli identified as preferred based on both dependent measures were then evaluated during treatment. The results suggested that latency may be a useful measure in the selection of preferred stimuli during forced-choice assessments.     

Psychopathic Traits in Adolescence: the Importance of Examining Components in Face Processing,Voice Processing,and Emotional Skill

This study examined relations among interpersonal, affective, and impulsive-irresponsible psychopathic traits, emotional capacities, and recidivism rates in 144 detained adolescents. Emotional skill was conceptualized using a range of constructs, including face and voice processing, emotional intelligence, and self-reported cognitive and affective empathy. In addition, the relation between these concepts and recidivism three years after the initial assessment was examined. Results indicated that interpersonal traits were positively associated with better facial identification of fearful faces, whereas affective traits were associated with worse facial identification of sad and happy faces as well as angry voices. Impulsive-irresponsible traits were associated with reduced emotional intelligence. Differential predictive utility of the three psychopathic traits dimensions was also evidenced. Findings highlight the need to consider the broad concept of psychopathy, but also its underlying dimensions.     

The Effect of an Ethical Decision-Making Training on Young Athletes’ Attitudes Toward Doping

This article examines whether a training program in ethical decision making can change young athletes’ doping attitudes. Fifty-two young elite athletes were randomly assigned to either an ethical decision-making training group or a standard-knowledge-based educational program group. Another 17 young elite athletes were recruited for no-treatment control purposes. The ethical decision-making training comprised six 30-min online sessions in which the participants had to work through 18 ethical dilemmas related to doping. The standard-knowledge-based educational program was also conducted in six online sessions of comparable length to that of the ethical training. A short version of the Performance Enhancement Attitude Scale was administered to measure the effects of the trainings on doping attitude. Prior to as well as after the intervention, the mean doping attitude scores of the young athletes were low to very low, indicating vehement rejections of doping. The results of our experiment showed that the ethical training led to an attenuation of these rejections. No intervention effect was found in the standard education group. The observed slight increase in the doping attitude score could be an indication that the ethical decision-making training was successful in breaking up the athletes’ stereotypical style of reasoning about doping.     

Locus of Control and Social Support: Clarifiers of the Relationship Between Job Stress and Job Satisfaction

The present study examined the role of social support and locus of control as determinants of job satisfaction and as moderators of the job stress—job satisfaction relationship. Support from a variety of sources focusing on problems at work was found to be stress buffering for internals whereas supervisory support was directly related to job satisfaction for externals. Type of support (integration) was associated with job satisfaction depending on perceptions of locus of control. In addition, different dimensions of locus of control (internal, external-chance, external-powerful others) had differing effects on job satisfaction independent of levels of social support. It is concluded that the buffering effect of social support may be applicable to job stress only when that support is content specific (issues at work) and individuals receiving such support believe they can impact their outcomes (internals on locus of control). The implication of these findings are discussed in terms of practical application in work organizations.     

The value of emotionally expressive visual art in medical education

This paper approaches the topic of visual art in medical education from a philosophical perspective, drawing on arguments from epistemology, philosophy of science, aesthetics, and contemporary ethical theory. Several medical ethicists have noted that the traditional clinical paradigm may increase the epistemic and emotional distance between patient and physician in part by focusing on the physical body and medical technology. Some of these same writers recommend a new approach to patients based on empathy and increased attention to suffering. After reviewing these arguments, supporting examples, and recommendations, I explain how visual art that expresses or symbolizes the emotional response to illness could be used to introduce an additional paradigm into medical education. This would be a paradigm based on empathetic attention to patients' emotional experiences in illness. My own argument is that this additional way of perceiving and relating to patients may reduce the distance between patient and physician and may allow physicians to better meet the ideal of treating the patient as a person.     

Evidence of deontic reasoning in 3- and 4-year-old children

Deontic reasoning is reasoning about what one may, ought, or ought not do in a given set of circumstances. Virtually all of our social institutions and child-rearing practices presume the capacity to reason about deontic concepts, such as what is permitted, obligated, or prohibited. Despite this, very little is known about the development of deontic reasoning. Two experiments were conducted that contrasted children’s reasoning performance on deontic and indicative reasoning tasks (i.e., the reduced array selection version of the Wason card selection task). Like adults, children as young as 3 years of age were found to adopt a violation-detecting strategy more often when reasoning about the deontic case than when reasoning about the indicative case. These results indicate that violation detection emerges as an effective deontic reasoning very early in human development.