Working Memory and Motor Activity: A Comparison Across Attention-Deficit/Hyperactivity Disorder,Generalized Anxiety Disorder,and Healthy Control Groups

Converging findings from recent research suggest a functional relationship between attention-deficit/hyperactivity disorder (ADHD)-related hyperactivity and demands on working memory (WM) in both children and adults. Excessive motor activity such as restlessness and fidgeting are not pathognomonic symptoms of ADHD, however, and are often associated with other diagnoses such as generalized anxiety disorder (GAD). Further, previous research indicates that anticipatory processing associated with anxiety can directly interfere with storage and rehearsal processes of WM. The topographical similarity of excessive motor activity seen in both ADHD and anxiety disorders, as well as similar WM deficits, may indicate a common relationship between WM deficits and increased motor activity. The relationship between objectively measured motor activity (actigraphy) and PH and visuospatial WM demands in adults with ADHD (n = 21), adults with GAD (n = 21), and healthy control adults (n = 20) was examined. Although all groups exhibited significant increases in activity from control to WM conditions, the ADHD group exhibited a disproportionate increase in activity, while activity exhibited by the GAD and healthy control groups was not different. Findings indicate that ADHD-related hyperactivity is uniquely related to WM demands, and appear to suggest that adults with GAD are no more active relative to healthy control adults during a cognitively demanding laboratory task.     

Thinking Inside the Box: On Identity, Sexuality, Prostate Cancer, and Social Support

This fictional account results from three years of studying a social support group for prostate cancer patients and their loved ones. As a consequence, the story centers on the issue of identity and its relationship to illness, a significant cause of concern among group members. The story addresses the loss of sexual function and general agency that often accompany the disease, then considers the roles of social support and open communication in negotiating a new identity.     

Hierarchical Position, Gender, Accident Severity, and Causal Attribution

The two studies reported here confirmed the role of the attributor's hierarchical level in causal attributions about accidents in different types of organizations. In both studies, supervisors vs. subordinates had to analyze a minor work accident vs. a serious one. The first study used male vs. female subjects, whereas the second compared the target's position in the same (in-group) vs. different (out-group) hierarchical level as the attributor. In all cases, more internal attributions than external ones were given to explain the accident. These results demonstrate a tendency toward defensive attribution, whereby people tend to protect themselves or their group from blame or prejudice (Shaver, 1970a). This self-protective attribution bias was found to increase with accident severity, particularly in Study 2. The conclusion offers some suggestions for accident analysis and prevention.     

肝病性糖尿病的发病机制及治疗进展

肝源性糖尿病为继发性糖尿病,因肝实质损害而导致,患者以餐后高血糖和葡萄糖耐量减低为特征.发病机制与肝病时肝糖原合成能力降低,胰岛素抵抗有关.治疗原则是改善和保护肝功能,降低高血糖,缓解症状.所以该病在诊治方面与2型糖尿病有很大区别,本文在此综述如下.