Evaluation of the attentional capacities and working memory of early and late blind persons

Although attentional processes and working memory seem to be significantly involved in the daily activities (particularly during navigating) of persons who are blind and who use these abilities to compensate for their lack of vision, few studies have investigated these mechanisms in this population. The aim of this study is to evaluate the selective, sustained and divided attention, attentional inhibition and switching and working memory of blind persons. Early blind, late blind and sighted participants completed neuropsychological tests that were designed or adapted to be achievable in the absence of vision. The results revealed that the early blind participants outperformed the sighted ones in selective, sustained and divided attention and working memory tests, and the late blind participants outperformed the sighted participants in selective, sustained and divided attention. However, no differences were found between the blind groups and the sighted group in the attentional inhibition and switching tests. Furthermore, no differences were found between the early and late blind participants in this set of tests. These results suggest that early and late blind persons can compensate for the lack of vision by an enhancement of the attentional and working memory capacities.     

Oral language deficits in dyslexic children: weaknesses in working memory and verbal planning

This paper focuses on the relationships among language processing (word- and sentence-level), working memory, and verbal/nonverbal linguistic output. The study examined oral language abilities in a group of 26 French-speaking dyslexic children, compared to two control groups (26 normally developing age-matched children and 26 normally developing younger children). The experimental procedure consisted of tasks involving auditory memory skills (digit span, unfamiliar word repetition, sentence repetition), word retrieval (with semantic, phonological and grammatical criteria), and sentence processing (with verbal and act-out production). The major findings reveal that (a) compared with their age-mates, the dyslexic children exhibited a significant deficit affecting all tasks; and (b) the dyslexic children and the younger controls performed similarly on several tasks. The results are consistent with the processing limitation hypothesis and suggest that the core deficit is the formulation of cognitive plans from auditory input to verbal output.     

When a new group identity does harm on the spot: Stereotype threat in newly created groups

The detrimental consequences of negative stereotypes on performance have been demonstrated in a variety of social groups with various stereotypes. The present studies investigate the minimal conditions for stereotype threat using newly created groups. Results of three experiments (total N = 184) demonstrate that in the negative stereotype condition, the more participants identified with their novel group, the stronger was their decrease in performance. In the control condition, identification was either not related to performance, or it had by trend a positive effect. The theoretical and practical implications of the findings are discussed with regard to stereotype threat and social identity theory. Copyright © 2011 John Wiley & Sons, Ltd.     

Development of disruptive behaviors in young children: A prospective population‐based cohort study

We know relatively little about the development of disruptive behaviors (DBs), and gender differences therein. The objective of this study was to describe the continuity and discontinuity in the degree to which young children in the general population are reported to exhibit specific DBs over time. Data came from the Québec Longitudinal Study of Child Development. First, the results show that relatively few children exhibit DBs on a frequent basis at 41 months of age. Second, the results show that a majority of children who exhibit a particular DB on a frequent basis at 41 months of age did not do so 1 year earlier. In addition, a majority of children who exhibited a particular DB on a frequent basis at 29 months of age no longer do so 1 year later. Third, gender differences in DBs (boys > girls) are either emerging or at least increasing in magnitude between 29 and 41 months of age. Consistent with the canalization of the behavioral development principle, children who exhibited DBs on a frequent basis at 29 months of age are less likely to stop doing so in the following year if they had exhibited the same behaviors at 17 months of age.     

Use of change blindness to measure different abilities to detect relevant changes in natural driving scenes

Drivers have to focus their attention on a danger to become aware of it. Change blindness paradigms are therefore relevant to studying the ability to detect danger. However, research has not yet focused on the role of two essential factors in guiding drivers’ attention: driving experience and the specific needs for performing a manoeuvre. Based on a previous analysis of real accident situations, we used a one-shot paradigm with static scenes to test observers’ ability to detect various changes as a function of their driving experience, the manoeuvre envisaged and the environmental context. The results showed that change detection depends greatly on driving experience when planning to cross a junction or to turn left, while it depends more on the environmental setting and task complexity when seeking a direction. The results were not conclusive, however, in explaining how drivers failed to notice that the vehicle ahead of them was turning when they considered an overtaking manoeuvre. We discuss the contributions of our research in relation to the possibilities of using change blindness as a measurement tool in studies on automobile driving.     

Measuring Team Performance in Complex and Dynamic Military Environments: The SPOTLITE Method

The Scenario-based Performance Observation Tool for Learning In Team Environments (SPOTLITE) provides a systematic method for developing team performance measurement instruments comprised of behaviorally anchored rating scales that are tied to observable behaviors that tap critical knowledge and skills and can be assessed at specific intervals during a training scenario. We developed a measurement instrument for four-person teams of F-16 pilots training for air-to-air combat in a high-fidelity simulation environment and implemented it in a handheld computer to support fast and accurate data entry as a team executes a scenario. An experiment demonstrated the sensitivity, reliability, and validity of the instrument.     

Couples’ Negative Interaction Behaviors and Borderline Personality Disorder

Borderline personality disorder (BPD) is a severe mental health problem predisposing to dysfunctional interaction behaviors and negative couple outcomes. This study aimed to assess, through direct observation, the quality of relationships of couples in which women were diagnosed with BPD. The sample consisted of 28 couples in which the woman had BPD, and 82 community couples. Couples’ interactions were coded using three scales—withdrawal/ avoidance, dominance, and criticism/attack/conflict—from the Global Couple Interaction Coding System. Couples in which the women had BPD evidenced significantly more negative behaviors, particularly dominance behaviors, than community couples. Moreover, in BPD couples, women adopted Criticism/Attack/Conflict behaviors more frequently than men.     

The Association between Childhood Abuse and Labor Force Outcomes in Young Adults: Results from the Ontario Child Health Study

We examined the associations between childhood physical and sexual abuse and labor force outcomes in young adults and the possible mediating effects of educational attainment, current mental health, and physical health. Data from the Ontario Child Health Study (N = 1,893), a province-wide longitudinal study were analyzed. Controlling for childhood and demographic variables, severe childhood physical abuse was significantly associated with reduced income with small mediating effects. There was a sex difference in the association between child abuse and employment. Severe childhood physical abuse was significantly associated with lower likelihood of employment only among males; mediators partially reduced this association. Further research is needed to explore the mechanisms linking exposure to child abuse and economic vulnerability in young adults.