Short-term music training enhances verbal intelligence and executive function

Researchers have designed training methods that can be used to improve mental health and to test the efficacy of education programs. However, few studies have demonstrated broad transfer from such training to performance on untrained cognitive activities. Here we report the effects of two interactive computerized training programs developed for preschool children: one for music and one for visual art. After only 20 days of training, only children in the music group exhibited enhanced performance on a measure of verbal intelligence, with 90% of the sample showing this improvement. These improvements in verbal intelligence were positively correlated with changes in functional brain plasticity during an executive-function task. Our findings demonstrate that transfer of a high-level cognitive skill is possible in early childhood.     

Whole word morphologizer: expanding the word-based lexicon: a nonstochastic computational approach

Whole Word Morphologizer is a small computer implementation of word-based morphology. The program automatically identifies morphological relations in a small word-based lexicon, literally learning its morphology, and uses the knowledge it acquires to generate new words. It is based on a model of the mental lexicon in which all entries are whole, entire, fully fledged words and relies solely on basic cognitive principles (differentiation and generalization) for the automatic acquisition of morphological relations and the population of the lexicon.     

A positron emission tomography study of short- and long-term treatment effects on functional brain activation in adults who stutter

Previous studies have shown that fluency-inducing techniques, such as choral speech, result in changes in neural activation as measured by functional neuroimaging. In the present study, positron emission tomography was used to investigate the effects of intensive behavioural treatment, followed by a 1-year maintenance program, on the pattern of cortical and subcortical activation in stuttering adults during silent and oral reading of single words. The results indicate changes in activation lateralisation, as well as a general reduction in overactivation, especially in the motor cortex, following treatment. The results are discussed in light of previous functional imaging studies with stuttering adults.

Educational objectives: The reader will learn about and be able to describe the: (1) use of functional neuroimaging PET in the study of stuttering; (2) differences in neural activation between stuttering and non-stuttering adults; and (3) effects of behavioural fluency treatment on cortical and subcortical activations in stuttering speakers.     

Identification with all humanity—A test of the factorial structure and measurement invariance of the scale in five countries

Identification with all humanity measured as an individual characteristic is an important factor related to social and international relations, such as concern for global issues and human rights, prosocial attitudes, intergroup forgiveness, attitudes toward immigrants, solving global problems, reactions to hate crimes and dehumanisation. We examine the factorial structure, psychometric properties and measurement invariance of the Identification with All Humanity (IWAH) scale in student samples from five countries (the United States, Poland, France, Mexico and Chile; N = 1930). Separate confirmatory factor analyses (CFAs) for each country showed a second-order model of one superordinate factor with two subfactors. The cross-country validation of the scale, based on multigroup CFA, confirmed configural and metric invariance between countries for raw scores, and full metric invariance for “pure” scores. This study showed that the IWAH scale can be successfully used for cross-country research and the results from different countries can be compared and integrated.     

How patients’ representations of cystic fibrosis-related diabetes inform their health behaviours

Background: Although diabetes is a frequent complication of cystic fibrosis (CF), patients’ behaviours tend not to comply with best practice recommendations. Using Leventhal’s Common-Sense Model, we address this issue by exploring patients’ representations of CF-related diabetes (CFRD) to better understand the discrepancy between patients’ expected and observed health behaviours.

Methods: Semi-structured individual interviews were conducted with patients (n = 39) in six CF clinics in Quebec, Canada. These interviews were part of a larger research project on screening and management practices for CFRD.

Results: Illness representations differed between two groups of interviewed patients: (1) one group had either CF without dysglycemia or CF with impaired glucose tolerance; and (2) the other group had CFRD. Both representations were internally consistent and encompassed Leventhal’s five dimensions of illness representation: illness identity, cause, timeline, consequences and control.

Conclusions: Patients require specific information on CFRD. The screening phase could be a crucial time to help patients adjust their representations to fit the reality of CFRD.     

Presence as determined by fractal perceptual-motor dynamics.

This paper presents a tentative model of the role of perceptual-motor dynamics in the emergence of the feeling of presence. A new method allowing the measure of how gaze probes three-dimensional space in immersion is used to support this model. Fractal computations of gaze behavior are shown to be more effective than standard computations of eye movements in predicting presence.     

System Justification and Affective Responses to Terrorism: Evidence from the November 2015 Paris Attacks

A large stream of research has shown that emotional reactions have a powerful impact on political choices and decision-making processes. Yet little is known about individual-level differences in experiencing specific emotions in the light of threatening events. In this article, we argue that system justification, or the endorsement and bolstering of existing social and political arrangements, is positively associated with the experience of positive emotions and negatively associated with the experience of negative emotions in the light of threat. We test our hypotheses using a study conducted a few days after the November 13, 2015, Paris terror attacks on a large sample in France. Our results show that system justification was positively associated with experiencing hope in the light of the attacks and negatively associated with experiencing fear and anger. Moreover, the size of these effects exceeded the respective size of other psychological characteristics such as authoritarianism, conservatism, and national attachment. These findings extend research on the palliative function of system justification to the domain of emotional responses to terrorist shocks.     

Nonautomated Pre-Performance Routine in Tennis: An Intervention Study

The effect of a nonautomated pre-performance routine (PPR) on performance in a high-pressure situation was investigated. Twenty-nine tennis players served in a low- and high-pressure condition in a pre- and posttest design. The intervention group learned a nonautomated PPR for 4 weeks. Increases in subjective but not objective (i.e., cortisol) levels of stress were detected in the high-pressure conditions. The intervention group showed a significant decrease in performance in the high-pressure condition in the pretest (p =.005) but not posttest (p =.161). Using a nonautomated PPR may benefit athletes who experience a drop in performance in high-pressure situations.     

Memory impairment among people who are homeless: A systematic review

Cognitive impairment may interfere with an individual's ability to function independently in the community and may increase the risk of becoming and remaining homeless. The purpose of this study was to systematically review the literature on memory deficits among people who are homeless in order to gain a better understanding of its nature, causes and prevalence. Studies that measured memory functioning as an outcome among a sample of homeless persons were included. Data on sampling, outcome measures, facet of memory explored and prevalence of memory impairment were extracted from all selected research studies. Included studies were evaluated using a critical appraisal process targetted for reviewing prevalance studies. Eleven studies were included in the review. Verbal memory was the most commonly studied facet of memory. Potential contributing factors to memory deficits among persons who are homeless were explored in seven studies. Memory deficits were common among the samples of homeless persons studied. However, there was a great deal of variation in the methodology and quality of the included studies. Conceptualisations of “homelessness” also differed across studies. There is a need for more controlled research using validated neuropsychological tools to evaluate memory impairment among people who are homeless.     

Judgement under uncertainty and conjunction fallacy inhibition training

Intuitive predictions and judgements under uncertainty are often mediated by judgemental heuristics that sometimes lead to biases. Our micro-developmental study suggests that a presumption of rationality is justified for adult subjects, in so far as their systematic judgemental biases appear to be due to a specific executive-inhibition failure in working memory, and not necessarily to a lack of understanding of the fundamental principles of probability. This hypothesis was tested using an experimental procedure in which 60 adult subjects were trained to inhibit the classical conjunction bias on a frequency judgement task derived from Tversky and Kahneman's work. Pre- and post-test performance was assessed via a probability judgement task. The data indicated a training effect, suggesting that subjects traditionally labelled as “irrational” with respect to the classical rules of inductive reasoning are in fact “inefficient inhibitors”. These findings are discussed in terms of a polymorphous view of rationality.