Specificity of Depressive Symptoms and Suicidality in a Juvenile Delinquent Population

Research which has related scores on the Children's Depression Inventory (CDI) to suicidality have generally neglected to examine the possibility that specific depressive factors within the CDI may be more predictive of suicidality than the full scale score. Knowledge of such factors would help to explain the relationship between depression and suicidality and improve the prediction of suicidal behavior. The current study examined the relationship of depressive factors to suicidality in a sample of 200 incarcerated juvenile delinquents. The published factor structure for the CDI and one derived from the delinquent population were compared. Results revealed two factors from the derived solution, hopelessness and low self-esteem, to be more powerful predictors of suicidal ideation than the full-scale CDI score. These results suggest that symptoms such as low self-esteem and hopelessness may be responsible for the well-documented relationship between depression and suicidality. Furthermore, it appears that the prediction of suicidality may be improved by examining specific depressive factors in suicide research as opposed to full-scale scores from depression inventories such as the CDI.     

Psychological testing on the Internet: new problems, old issues

The Internet has significantly changed the way people conduct business, communicate, and live. In this article, the authors' focus is on how the Internet influences the practice of psychology as it relates to testing and assessment. The report includes 5 broad sections: background and context, new problems yet old issues, issues for special populations, ethical and professional issues, and recommendations for the future. Special attention is paid to implications for people with disabling conditions and culturally and linguistically diverse persons. The authors conclude that ethical responsibilities of psychologists and current psychometric standards, particularly those regarding test reliability and validity, apply even though the way in which the tests are developed and used may be quite different.     

The legitimizing role of accent on discrimination against immigrants

This article analyses the influence of accent on discrimination against immigrants by examining the hypothesis that accent leads to discrimination only in more prejudiced individuals, merely because people speaking with a native accent are perceived to be better qualified than those whose accent is non‐standard. In Study 1 (N = 71), we found that only prejudiced individuals use accent to discriminate against immigrants. In Study 2 (N = 124), we replicated this effect and found that the influence of accent on discrimination is mediated by the perceived quality of the accent. Study 3 (N = 105) replicated the previous results even after controlling for the effect of stereotyping. These results are the first experimental illustration of the hypothesis that accent triggers intergroup discrimination only among prejudiced individuals because they evaluate native accents as being qualitatively better than accents of immigrants, thereby legitimizing ingroup bias.     

The role of body image and self‐perception in anorexia nervosa: the neuroimaging perspective

Anorexia nervosa is a severe psychiatric illness characterized by intense fear of gaining weight, relentless pursuit of thinness, deep concerns about food and a pervasive disturbance of body image. Functional magnetic resonance imaging tries to shed light on the neurobiological underpinnings of anorexia nervosa. This review aims to evaluate the empirical neuroimaging literature about self‐perception in anorexia nervosa. This narrative review summarizes a number of task‐based and resting‐state functional magnetic resonance imaging studies in anorexia nervosa about body image and self‐perception. The articles listed in references were searched using electronic databases (PubMed and Google Scholar) from 1990 to February 2016 using specific key words. All studies were reviewed with regard to their quality and eligibility for the review. Differences in brain activity were observed using body image perception and body size estimation tasks showing significant modifications in activity of specific brain areas (extrastriate body area, fusiform body area, inferior parietal lobule). Recent studies highlighted the role of emotions and self‐perception in anorexia nervosa and their neural substrate involving resting‐state networks and particularly frontal and posterior midline cortical structures within default mode network and insula. These findings open new horizons to understand the neural substrate of anorexia nervosa.     

A Minor Philosophy

This article surveys the output of contemporary Italian philosophers and distinguishes three principal ways of approaching their intellectual endeavor: denial, the “evil-queen syndrome,” and compliance. Philosophers in a state of denial seem unaware of the loss in status that Italian philosophy as an academic discipline suffers in international forums. The evil-queen syndrome concerns the habit of compiling surveys of past philosophies, focusing on traditions of which one considers oneself the privileged inheritor. Compliance—in its commendable aspect—refers to the growing number of philosophers who participate in international debates, whose forums are for the most part Anglo-American peer-refereed journals. This article urges a less subservient intellectual attitude, capable of contributing new ideas and arguments to the international philosophical forum.     

Fluid intelligence, working memory and executive functioning

The causes underlying the correlation between working memory and fluid intelligence remain unknown. There are some researchers who argue that the answer can be found on the presumed executive component of working memory. However, the available empirical evidence is far from conclusive. The present study tested a sample of 229 participants. Intelligence, working memory, and executive functioning were measured by one analytic reasoning test (TRASI), a dual task combining a primary task of deductive reasoning with a secondary task of counting, and the Tower of Hanoi task, respectively. All the 3 measures were computer administered. The results indicate that the shared variance between executive functioning and working memory do not account for the relationship between intelligence and working memory. Some theoretical implications are discussed.     

A neuropsychological assessment of dual-task costs in closed-head injury patients using Cohen’s effect size estimation method

A test of whether patients suffering from a severe closed-head injury (CHI) were affected by disproportionate dual-task costs compared to those of healthy control participants was carried out through a direct comparison of CHI effects on dual-task (psychological refractory period, or PRP) performance and on single-task performance. In the dual-task condition of the present experiment, independent choice-responses were required to two sequential stimuli presented at a variable stimulus onset asynchrony (SOA). A significant delay of the reaction time (RT) to the second stimulus was reported by both CHI patients and controls at short (SOA) compared to long SOA, i.e., a PRP effect. The PRP effect was more pronounced for CHI patients than controls. In the single-task condition, a single choice-response was required to a stimulus presented in isolation. The RT produced by CHI patients in the single-task paradigm was longer than the RT produced by controls. CHI effects on dual-task performance and on single-task performance were compared following (1) their transformation into Cohen’s ds, and (2) the application of a correction algorithm taking into account the different reliability of single-task and dual-task measures. The analysis of Cohen’s ds revealed that CHI effects on performance were, if anything, smaller in the dual-task condition than in the single-task condition. The results imply that CHI patient’s slower responding in single- and dual-task performance reflects a single common cause—slowing of the central processing.     

The Simon effect and handedness: evidence for a dominant-hand attentional bias in spatial coding

In two experiments, the relation between handedness and the size of the Simon effect in each visual hemifield was investigated. Experiment 1 showed that the Simon effect was larger in the right visual hemifield in right-handers and in the left visual hemifield in left-handers, whereas ambidextrous individuals showed a symmetric Simon effect. In Experiment 2, participants performed the same Simon task as in Experiment 1, but with their hands crossed. The right- and left-handed groups showed a reversed pattern of results with respect to Experiment 1. We explained this phenomenon as a part of a more general account in which perception and action are embedded in a perception-for-action system. In this system, an attentional bias originating from the field of operation of the dominant hand would be at the basis of the relationship between the asymmetry of the Simon effect and handedness.