Exploring how symptoms of attention-deficit/hyperactivity disorder are related to reading and mathematics performance: general genes, general environments

Children with attention-deficit/hyperactivity disorder (ADHD) tend to perform more poorly on tests of reading and mathematical performance than their typical peers. Quantitative genetic analyses allow for a better understanding of the etiology of ADHD and reading and mathematics outcomes, by examining their common and unique genetic and environmental influences. Analyses were conducted on a sample 271 pairs of 10-year-old monozygotic and dizygotic twins drawn from the Western Reserve Reading and Mathematics Project. In general, the results suggested that the associations among ADHD symptoms, reading outcomes, and math outcomes were influenced by both general genetic and general shared-environment factors. The analyses also suggested significant independent genetic effects for ADHD symptoms. The results imply that differing etiological factors underlie the relationships among ADHD and reading and mathematics performance. It appears that both genetic and common family or school environments link ADHD with academic performance.     

The involvement of working memory in children's exact and approximate mental addition

The involvement of working memory (WM) was examined in two types of mental calculation tasks: exact and approximate. Specifically, children attending Grades 3 and 4 of primary school were involved in three experiments that examined the role of verbal and visuospatial WM in solving addition problems presented in vertical or horizontal format. For Experiment 1, the children were required to solve addition problems with carrying. For Experiment 2, they were required to solve addition problems without carrying. Then, for Experiment 3, the children needed to solve approximate problems with and without carrying. Results confirmed that different WM components are involved in solving mental addition problems. In Experiment 1, horizontally presented addition problems were more impaired than vertically presented ones, according to a verbal WM load; conversely, vertically presented addition problems were more affected by a visuospatial WM load, especially when the children were required to perform approximate calculations. In Experiment 2, this pattern emerged in neither exact nor approximate calculations. Finally, in Experiment 3, the specific involvement of WM components was observed only in problems with carrying. Overall, these results reveal that both approximate calculation and carrying procedures demand particularly high WM resources that vary according to the task's constraints.     

Prior on an insolubilium of Jean Buridan

We present Prior??s discussion of a puzzle about valditity found in the writings of the fourteenth-century French logician Jean Buridan and show how Prior??s study of this puzzle may have provided the conceptual inspiration for his development of hybrid logic.     

Quality of life of patients with amyotrophic lateral sclerosis

The aim of this study is to evaluate the correlation between different measures of quality of life (QoL), functional status and mood status in patients with amyotrophic lateral sclerosis (ALS). A sample of 40 patients with ALS was recruited and scales for the evaluation of health-related QoL (SF36), patient-centered QoL (SEIQoL), functional status (ALSFRS) and depression (ZDS) have been administered to them. All the correlations (Pearson's r) between the scores have been considered and the t-test was performed in order to compare male with female patients. No correlation emerged between the different measures of QoL and functional status, apart from the scores of the Physical Functioning subscale of the SF36 which resulted positively correlated (p?相似文献   

Walking Down the Sunny Side of the Street: Three Studies Developing a Spiritually Nuanced Measure of Optimism

Across a series of studies, an effort was made to operationalize optimism in a spiritually nuanced fashion. In the first study, it was proposed and tested that spiritual optimism might consist of two factors: “here and now” and “end of story” optimism. However, a second study suggested that spiritual optimism had more of a unitary quality. The second study also suggested that the construct of spiritual optimism was separate from the construct of hope. The third study confirmed the unitary nature of the spiritual optimism measure and provided evidence for the construct validity of the measure. Spiritual optimism was directly related to a general measure of coping and a measure of religious coping. The relationships between spiritual optimism and different types of religious coping appeared stronger than between spiritual optimism and the more general measures of coping.     

Eye movements in search in visual neglect

We report data on eye movements in a patient (MP) with unilateral visual neglect, in a task of searching a real-world scene. We demonstrate that MP missed some contralesional targets after fixating on them. On such “miss”; trials, MP's eye movements were similar to those on objects in target-absent trials trials, where MP was cued to search for a target that was not actually present. In addition, MP showed little evidence of memory for the locations of objects that remained across a trial, though poor memory fails to explain performance on trials where targets were fixated. We suggest that, in this case, neglect reflected the poor uptake of information from the contralesional side of space, so that even fixated targets sometimes failed to match a “template” held in his memory.     

A Brief Social Skills Intervention to Reduce Challenging Classroom Behavior

Social skills instruction has been recommended as a way of improving behavioral and social outcomes for students with emotional and behavioral disorders (EBD). A brief social skills intervention (Stop and Think (Knoff in The stop & think social skills program, Sopris West, Longmont, CO, 2001) was used to extend the current literature base for students with EBD. A multiple-baseline across classrooms design was used to examine negative social behavior of five participants attending a self-contained school setting for students with challenging behavior. The primary intervention components included: (a) teach, (b) model, (c) role play, and (d) performance feedback. Specific social skills addressed in intervention were listening, using nice talk, accepting consequences, ignoring others, and following directions. Participants were taught to use a 5-step process for each social skill: (1) stop and think, (2) identify good and bad choices, (3) identify steps to performing the good choice, (4) implement steps, and (5) reflect on the good choice you made. Results indicated students benefitted from 12 sessions of explicit social skills instruction as evidenced by decreases in negative social behavior. Social behavior improvements maintained during 2-week follow-up observations. Decreasing negative social behaviors is important in improving general social and behavioral outcomes as well as demonstrating growth toward being prepared to transition back to less restrictive environments. Limitations, recommendations for future research, and practice implications are discussed.     

Source Credibility in Consumer-Generated Advertising in Youtube: The Moderating Role of Personality

This research investigates the effects of the big five consumer personality traits on perceptions of source credibility related to consumer-generated advertising (CGA). An online experiment with 175 participants was conducted with viewing of a YouTube video in which source credibility (as firm-generated or consumer-generated) was manipulated. Findings show participants viewed CGA as more credible than firm-generated advertising. CGA positively influenced attitudes toward the ad and brand for consumers with low openness, and positively influenced opinion giving for consumers with high extraversion and low neuroticism. Also, a significant main effect of neuroticism was found. Theoretical and practical implications, and suggestions for future research are discussed.