Different types of smiles and laughter in preschool children

The relationship among morphologically different forms of smiling and laughter was examined. The participants were 19 Brazilian preschool children. Each child was observed a total of 60 min. in three 10-min. sessions on the playground and three 10-min. sessions in the classroom. Analysis suggests that the various forms of smiling do not simply express different intensities of a single emotion. A two-dimensional structure was indicated by factorial analysis. The first dimension, which could be called playfulness-mock aggression, consisted of a broad smile and laughter. The second dimension, which could be called friendliness-appeasement, consisted of a closed and upper smile. The pattern of correlation found between expressive behaviors and both teacher's and peers' evaluations gives further support to the interpretation that smiling is an heterogeneous category.     

The effects of modifying interpretation bias on worry in generalized anxiety disorder

This study investigated whether facilitating a benign interpretive bias decreases negative thought intrusions in generalized anxiety disorder (GAD). Clients were randomly allocated to an interpretation modification condition in which they repeatedly accessed benign meanings of emotionally ambiguous homographs and scenarios, or to a control condition in which they accessed threat and benign meanings with equal frequency. Worry frequency was assessed using a breathing focus task that involved categorising the valence of thought intrusions before and after an instructed worry period. Interpretation bias was assessed during the modification tasks, and on a different measure of interpretation bias (sentence completion) following a period of worry. The experimental procedure modified interpretations made during training, and in the later sentence completion task. Furthermore, compared to the control group, the benign group showed fewer negative thought intrusions during breathing focus (as rated by both participants and an assessor). These findings show that it is possible to induce a more benign interpretive bias in GAD clients and that this reduces negative thought intrusions.     

Restriction of working memory capacity during worry

The authors report the first direct assessment of working memory capacity when people engage in worry. High and low worriers performed a random key-press task while thinking about a current worry or a positive personally relevant topic. High (but not low) worriers showed more evidence of restricted capacity during worry than when thinking about a positive topic. These findings suggest that high worriers have less residual working memory capacity when worrying than when thinking about other topics and, thus, have fewer attentional resources available to redirect their thoughts away from worry.     

The extent and nature of imagery during worry and positive thinking in generalized anxiety disorder

Clients in treatment for Generalized Anxiety Disorder (GAD) were compared to a control group to assess the extent and nature of imagery during worry or while thinking about a personally relevant positive future event. Two methods were used to assess mentation and were completed in counter balanced order within the worry and positive conditions. One method assessed the occurrence of imagery by requiring participants to categorize their mentation as verbal thoughts or images every 10 s. The other method involved participants estimating the duration of any imagery that occurred in the previous 10 s. Imagery during worry occurred less often than while thinking about a positive event for both groups, but GAD clients had a more pronounced deficit of imagery during worry than the control group. Images that occurred were briefer during worry than while thinking about a positive future event and were briefer in the GAD than the control group for both worry and positive conditions. The results thus confirmed that imagery is less common during worry in clients with GAD but also demonstrated that the imagery that does occur in GAD is briefer.     

Self-concealment and suicidal behaviors

Understanding self-concealment, the tendency to actively conceal distressing personal information from others, may be important in developing effective ways to help individuals with suicidal ideation. No published study has yet assessed the relation between self-concealment and suicidal behaviors. Additionally, most self-concealment research has been conducted solely with younger adults. The relation between self-concealment and depressive symptoms among older adults (age 65 and older), and between self-concealment and suicidal behaviors among both younger (college student) and older adults, was investigated in this study. As predicted, self-concealment was significantly related to suicidal behaviors in younger adults. Furthermore, self-concealment was significantly related to depressive symptoms in older adults. Interestingly, the association between self-concealment and suicidal behaviors in this age group was not significant.     

Insomnia Symptoms,Nightmares, and Suicide Risk: Duration of Sleep Disturbance Matters

Duration of insomnia symptoms or nightmares was investigated to see if it was related to suicide risk independent of current insomnia symptoms, nightmares, anxiety symptoms, depressive symptoms, and posttraumatic symptoms. The cross‐sectional study involved analyses of survey responses from undergraduate students who endorsed either insomnia symptoms (n = 660) or nightmares (n = 312). Both insomnia symptom and nightmare duration were significantly associated with suicide risk independent of current insomnia symptoms or nightmares, respectively. Relations were also significant after controlling for anxiety symptoms, depressive symptoms, and posttraumatic symptoms. Results suggest that duration of sleep disturbance is relevant when assessing suicide risk.     

Veteran Participation in Intensive Suicide Research Protocols: No Evidence of Iatrogenic Effects

Suicide research remains fraught with ethical and methodological issues, including researchers’ reservations about conducting intensive suicide research protocols due to potential iatrogenic effects and liability concerns. Such issues significantly impede scientific inquiry related to suicide. To date, no research has explored potential iatrogenic effects of intensive, nontreatment suicide research among Veterans. This study aimed to fill this gap. It was hypothesized that participation in suicide‐specific protocols would not significantly increase risk among Veterans. Veterans completed self‐reports, structured interviews, and rigorous suicide‐specific tasks (Study A, N = 34; Study B, N = 18; Study C, N = 119). Findings indicated there were no significant differences in pre‐ and postassessment suicide risk variables (all ps > .05). Estimated mean change for “urge to harm self” was ?0.24 (95% confidence interval [CI]: ?0.60, 0.13), ?0.28 (CI: ?0.56, 0.01), and ?0.01 (CI: ?0.09, 0.07) and “intent to harm self” was ?0.18 (95% CI: ?0.45, 0.10), 0 (CI: ?0.17, 0.17), and 0.01 (CI: ?0.04, 0.06) for Studies A, B, and C, respectively. Results indicated the respective protocols did not produce iatrogenic effects. The current findings are discussed with attention to safety‐monitoring techniques that may reduce iatrogenic effects and considerations for future researchers.