The effects of clinical motor variables and medication dosage on working memory in Parkinson’s disease

In this study, we investigate the interrelationship between clinical variables and working memory (WM) in Parkinson’s disease (PD). Specifically, the aim of the study was to investigate the relationship between disease duration, dopaminergic medication dosage, and motor disability (UPDRS score) with WM in individuals with PD. Accordingly, we recruited three groups of subjects: unmedicated PD patients, medicated PD patients, and healthy controls. All subjects were tested on three WM tasks: short-delay WM, long-delay WM, and the n-back task. Further, PD encompasses a spectrum that can be classified either into akinesia/rigidity or resting tremor as the predominant motor presentation of the disease. In addition to studying medication effects, we tested WM performance in tremor-dominant and akinesia-dominant patients. We further correlated WM performance with disease duration and medication dosage. We found no difference between medicated and unmedicated patients in the short-delay WM task, but medicated patients outperformed unmedicated patients in the long-delay WM and n-back tasks. Interestingly, we also found that akinesia-dominant patients were more impaired than tremor-dominant patients at various WM measures, which is in agreement with prior studies of the relationship between akinesia symptom and basal ganglia dysfunction. Moreover, the results show that disease duration inversely correlates with more demanding WM tasks (long-delay WM and n-back tasks), but medication dosage positively correlates with demanding WM performance. In sum, our results show that WM impairment in PD patients depend on cognitive domain (simple vs. demanding WM task), subtype of PD patients (tremor- vs. akinesia-dominant), as well as disease duration and medication dosage. Our results have implications for the interrelationship between motor and cognitive processes in PD, and for understanding the role of cognitive training in treating motor symptoms in PD.     

The Role of Attitudes and Awareness in Anti-Violence Education

Summary

Most interventions for the prevention of violence in relationships aim at attitudes and awareness. Prevailing attitudes in our society already condemn violence, however, and wife assault is viewed as particularly serious. Some research shows that perpetrators have attitudes more supportive of violence than other people do, but the link between attitudes and behavior can be complex. Trying to persuade people to change their attitudes in one direction can lead instead to people taking more extreme versions of their existing attitudes. Some interventions that raise awareness and promote availability of services appear to teach participants to take the problem less seriously. Most students report neither undesirable attitudes nor low awareness of violence in relationships. But their behavior appears inconsistent with their reported attitudes and awareness. If interpersonal violence has its roots in a problem more fundamental than the views of contemporary society, then anti-violence education based on attitudes and awareness will have limited benefits, and possibly some harmful effects. This article encourages a cautious rethinking of assumptions underlying current anti-violence education and alternative theories of violent behavior. It offers some suggestions for ways to reduce violent behavior, and encourages integration of violence prevention efforts into regular curricula and extra-curricular activities.     

Reflections On The Intensive Measurement Of Stress,Coping, And Mood,With An Emphasis On Daily Measures

Abstract

This paper discusses reasons for the shift from longer-term measurement of stress, coping, and mood to more intensive measurement strategies. Daily assessments are common in intensive studies of these constructs. We review measures available to the researcher, focusing on various aspects of the constructs. While daily assessments are an improvement over less intensive methods, we also discuss shortcomings of these measures. Furthermore, current assessments may not capture many important dimensions of stressful occurrences, and we suggest that such occurrences be thought of in terms of episodes. Modifications of current assessments are discussed, as are even more intensive assessments of stress, coping, and mood.     

The Relationship between Everyday Problem Solving and Inconsistency in Reaction Time in Older Adults

ABSTRACT

The purpose of the present study was to investigate whether inconsistency in reaction time (RT) is predictive of older adults' ability to solve everyday problems. A sample of 304 community dwelling non-demented older adults, ranging in age from 62 to 92, completed a measure of everyday problem solving, the Everyday Problems Test (EPT). Inconsistency in latencies across trials was assessed on four RT tasks. Performance on the EPT was found to vary according to age and cognitive status. Both mean latencies and inconsistency were significantly associated with EPT performance, such that slower and more inconsistent RTs were associated with poorer everyday problem solving abilities. Even after accounting for age, education, and mean level of performance, inconsistency in reaction time continued to account for a significant proportion of the variance in EPT scores. These findings suggest that indicators of inconsistency in RT may be of functional relevance.     

It was intuitive,and it felt good: a daily diary study on how people feel when making decisions

ABSTRACT

In daily life, people make plenty of decisions, either intuitively or based on analysis. So far, research has examined when decision-making leads to correct or biased outcomes. In the present study, we adopted a different perspective and explored how decision-making is associated with how people feel. In an observational study, 134 healthy participants retrospectively reported on six evenings which decisions they had made during that day (total N?=?3,850 decisions). They were also asked to indicate how they had felt before/after each decision. Multilevel regression analyses revealed that (a) people reported having felt better prior to intuitive as compared to analytical decisions, (b) people reported having felt better after as compared to before the decision, and (c) this increase in positive feeling was more pronounced for intuitive decisions. The latter two associations were robust to statistically controlling for the life domain in which the decisions occurred, the decisions’ importance and ease, and daily mood. The retrospective design and the single-item measure of mood are among the limitations of this study. Altogether, the results are in line with the idea that making everyday life decisions intuitively makes people feel good.     

Development and initial validation of the Multidimensional Empathy Scale for Adolescents

Adolescence is a transitional phase in psychosocial development in which individuals learn to navigate their social worlds. The need to socialize, connect with, and empathize with others is especially pronounced in this phase. This study aimed to develop and validate a self-report empathy measure for adolescents, the Multidimensional Empathy Scale for Adolescents (MESA). Based on the theories and research on empathy, we created 24 items to measure six dimensions of empathy (cognitive, affective, positive, negative, majority, and minority). The dimensional structure of the MESA was examined in two independent samples of adolescents. The hypothesized six-factor model of the MESA showed a good fit for both samples. Reliability analyses demonstrated that the MESA had high internal consistency and test–retest reliability. Furthermore, the MESA showed high convergent, discriminant, and incremental validity, as indicated by positive correlations with existing measures of empathy, idiocentrism–allocentrism, and social interest scales. The MESA, as a unique measure of six types of empathy, can be a valuable tool to assist adolescents in developing a balanced sense of empathy.     

日常情绪体验对自我控制的影响——意识努力的调节作用

沉迷于电子产品所诱发的积极情绪体验严重影响青少年的学习与生活,引起社会各界高度重视。本文通过两项研究考察日常情绪体验与意识努力程度对自我控制的影响,并探讨其背后的内在机制。研究1采用问卷调查随机抽样300名大学生发现,大学生日常情绪体验差异显著,且以积极情绪体验为主,同时低意识努力的情绪刺激源显著多于高意识努力的情绪刺激源;研究2在研究1基础上,进一步通过“意识努力”介入的方式对136名被试进行干预,结果表明大学生日常情绪体验对自我控制无显著预测效应,意识努力显著正向预测其自我控制,且高水平的意识努力在日常情绪体验与自我控制之间的关系中发挥正向调节作用。