Impulse control disorders in Parkinson’s disease: Predominant role of psychological determinants

Objectives: Impulse Control Disorders (ICDs) in Parkinson’s disease (PD) have previously almost exclusively been considered to result from anti-parkinsonian medication. However, this biomedical perspective has failed to achieve a full understanding of the phenomenon and it is argued that a failure to consider psychological factors is a critical omission.

Design: The present study examined the predictive relationship between ICDs in PD and a range of psychological measures, whilst controlling for a number of biomedical determinants.

Main outcome measures: One hundred participants with idiopathic PD completed questionnaires that assessed demographic and clinical characteristics, psychological measures and the presence of ICDs (QUIP-RS).

Results: Increased use of a ‘negative’ coping strategy, stronger illness identity, more emotional illness representations and stress were found to be significant predictors of ICDs, and different psychological predictors were associated with different ICDs. Medication was not found to predict ICDs in the presence of psychological factors, either when total treatment levels were considered or when agonist dose was considered alone.

Conclusions: This study provides the first quantitative evidence of a predominant predictive relationship between psychological factors and ICDs in PD. The results suggest that psychological interventions may have useful therapeutic role to play for ICDs in PD.     

The relationship between impulsivity and suicide among rural youths aged 15–35 years: a case–control psychological autopsy study

In China, the gender ratio of suicide rates did not match the Western patterns, which was higher for females than males. However, the rural men were at relatively high risk of suicide in Liaoning province. Impulsivity was an important factor of suicide behaviors, but there was a lack of studies in China. This research aimed to study the relationship between impulsive personality traits and suicidal behavior among Chinese rural youths. Suicides were consecutively sampled from six randomly selected counties in Liaoning Province in China. Between 2005 and 2007, a total of 162 suicide victims were enrolled in the study along with 162 community controls matched for age, gender, and location. The psychological autopsy method was used to collect data from informants knowledgeable about the selected suicide victims and controls. The results showed the suicide victims in the study were more likely to demonstrate dysfunctional impulsivity and less likely to demonstrate functional impulsivity compared with the controls. Mental disorders, acute negative life events, and dysfunctional impulsivity contributed to the risk of suicide; educational and functional impulsivity were protective factors. Suicide prevention efforts in rural China may address impulsivity.     

Developing the Impulsive Driver Behavior Scale

The aim of the present study is to develop a driving context specific impulsivity scale. First, a qualitative study was conducted by interviewing 20 individual drivers to develop the scale items based on the definitions of the basic impulsivity dimensions in the literature. Then, a quantitative study with a total of 506 individual drivers to examine the psychometric qualities of the newly developed Impulsive Driver Behavior Scale. In addition, the variance in driver behaviors, namely violations, errors, lapses and positive driver behaviors measured by the Driver Behavior Questionnaire (DBQ; Reason, Manstead, Stradling, Baxter, & Campbell, 1990) explained by the general impulsivity scales in the literature and the newly developed scale were compared. In all the comparisons, Impulsive Driver Behavior Scale explained higher amount of variance than the general impulsivity scales. Finally, it was found that the newly developed driving context specific impulsivity scale had incremental validity over the general impulsivity scales in predicting driver behaviors.     

No site unseen: predicting the failure to control problematic Internet use among young adults

Problematic Internet use has been associated with the neglect of valued activities such as work, exercise, social activities, and relationships. In the present study, we expanded the understanding of problematic Internet use by identifying an important predictor of the inability to curb Internet use despite the desire to do so. Specifically, in a college student sample reporting a mean of 27.8 h of recreational Internet use in the past week, we investigated the role of distress intolerance (DI)—an individual difference variable that refers to the inability of an individual to tolerate emotional discomfort and to engage in goal-directed behavior when distressed—to predict the failure to meet personal restrictions on Internet use. Consistent with hypotheses, DI emerged as a significant predictor of the failure to meet self-control goals in both bivariate and multivariate models, indicating that DI offers unique prediction of self-control failure with problematic Internet use. Given that DI is a modifiable trait, these results encourage consideration of DI-focused early intervention strategies.     

The Art of Reflection: Turning the Strange into the Familiar

There are a great many useful articles on the dynamics and pragmatics of reflecting teams but few articles address what constitutes a good or inept reflection and why. I provide a conceptual model for thinking about what a good reflection does, distinguishing it from a nice reflection. With some further refinements in place, I then illustrate how reflections can be part of any relationship, not just clinical ones. We have opportunities to make them and to recognize when others make them to us. By using examples from my personal life—as a grandmother, daughter, radio listener, cancer survivor, and client—I attempt to ease the personal/professional binary, a project of mine for the last 35 years. In the second part of the article, I address how writing can serve reflection. Although best offered at the moment one is called for, it is never too late for a reflection. Writing allows people to offer reflections after the fact to those who have shared their stories. Sometimes, it is to ourselves we offer those reflections, when the reflector has long since dropped the thread of obligation or interest. I provide an example of working with iconic imagery to unpack meaning so that reflection can eventually take place, allowing integration to proceed, facilitating the strange becoming the familiar.     

青少年早期冲动性的发展轨迹:界定亚群组及其影响因素

以发展的整体互动论和生态系统理论为基础,考察青少年早期冲动性的发展轨迹及其影响因素。采用Barratt冲动性量表、家庭环境量表、青少年感知校园氛围问卷对天津市某中学210名初中生进行了为期1年的3次追踪调查,使用潜变量增长模型、潜类别增长模型、多元Logistic回归进行数据分析。结果发现:(1)青少年早期冲动性的发展呈线性增长趋势,并可分为三个亚群组:恒低组(16.67%)、恒高组(41.43%)和居中升高组(41.91%);(2)家庭环境亲密度和教师支持对亚群组有显著预测作用。本研究揭示了在青少年早期冲动性的动态变化性、个体差异性及其相关影响因素。     

Reflection and reasoning in moral judgment

While there is much evidence for the influence of automatic emotional responses on moral judgment, the roles of reflection and reasoning remain uncertain. In Experiment 1, we induced subjects to be more reflective by completing the Cognitive Reflection Test (CRT) prior to responding to moral dilemmas. This manipulation increased utilitarian responding, as individuals who reflected more on the CRT made more utilitarian judgments. A follow-up study suggested that trait reflectiveness is also associated with increased utilitarian judgment. In Experiment 2, subjects considered a scenario involving incest between consenting adult siblings, a scenario known for eliciting emotionally driven condemnation that resists reasoned persuasion. Here, we manipulated two factors related to moral reasoning: argument strength and deliberation time. These factors interacted in a manner consistent with moral reasoning: A strong argument defending the incestuous behavior was more persuasive than a weak argument, but only when increased deliberation time encouraged subjects to reflect.     

Associations between components of rumination and autobiographical memory specificity as measured by a Minimal Instructions Autobiographical Memory Test

Clinical studies have shown that rumination functions as a mediator between overgeneral memory—the tendency to retrieve autobiographical memories in a non-specific format—and depression. Recently, rumination has been dismantled into two distinct subcomponents: reflection, which is more adaptive, and brooding, which is more maladaptive. In the present study we examined the differential relationships of these two rumination subcomponents with autobiographical memory specificity and their mediational role for the relationship between reduced memory specificity and depression in a non-clinical sample. In addition, we investigated the usefulness of a “minimal instructions” version of the Autobiographical Memory Test (AMT) to measure memory specificity in non-clinical populations. Results indicated that the use of minimal instructions can increase the AMT's sensitivity to detect reduced autobiographical memory specificity in non-clinical individuals. Further it was found that brooding, and not reflection, is significantly associated with reduced autobiographical memory specificity and functions as a mediator between reduced memory specificity and depression.     

Childhood Aggression and Unconventionality: Impact on Later Academic Achievement,Drug Use,and Workforce Involvement

The interrelation of childhood aggression, unconventionality, academic orientation, work involvement, and drug use was explored. Data were obtained for the research participants when they were 5 to 10 years old. Follow-up interviews were conducted when the participants were 15 to 20 years old and again at 21 to 26 years old. Latent variable causal analysis was used, and the findings reveal long-term relations between early childhood aggression and adolescent problem behavior in the academic and occupational areas. The findings also indicate that adolescent drug use generates an early involvement with adult role behaviors, such as work at the expense of further education. Implications of the findings for prevention are discussed.