On the stability of instability: Optimising the reliability of intra-subject variability of reaction times

While reaction times have been traditionally aggregated using measures of central tendency, interest in higher moments of the reaction time distribution, particularly intra-subject variability (ISV), has grown in recent years. However it is unclear to what extent individual differences in these higher moments are stable across time, reflecting trait-like features. The present study compares the reliability of a number of metrics for higher moments of the reaction time distribution on a battery of speeded tasks, and supplements these analyses with a Monte Carlo analysis of the go no-go task. The reliability of ISV is shown to be dependent on both the metric used and the number of trials used to calculate them. However, when using sufficient trials and appropriate metrics, ISV shows good test-retest and odd-even reliability. This study has important practical implications for the design and analysis of studies into ISV, as well as theoretical importance for the trait concept of ISV.     

Impact of compensatory secondary control on the recollection of emotions and the self in respect to past adversity1

Abstract: This study investigated a specific cognitive appraisal functioning as a form of compensatory secondary control that allows the individual to reevaluate positive aspects of adversity experienced in the past, and enhances emotional resources for further personal development through primary control. The impact of four kinds of present‐time appraisals on recollection of 11 types of emotions that 50 third‐year students initially experienced during preparations for university entrance examinations taken two and a half years earlier were examined. Cognitive appraisal of the experience of the adversity was found to function as compensatory secondary control. Positive emotions were overestimated whereas negative emotions were underestimated when the participants retrospectively evaluated their experience of exam preparation positively. Participants who regarded their exam preparations as a fruitful experience also positively evaluated the past struggle in that situation. These findings suggest a partial explanation for the role of cognitive appraisal in the directive, particularly analogous function of autobiographical memory in the individual's approach to immediate or future problems.     

药物安全：不良反应及其监测

药品是疾病治疗的重要手段,如何发挥药品的最大疗效,降低其不良反应,一直是关注的热点问题。近年来,随着新药的不断上市,药物不良反应发生率呈上升趋势。针对这种情况,从如何认识、判定、预防、处理四个方面,对药物不良反应进行了分析,旨在使药物不良反应得到关注,使用药安全、有效。     

Present and future temporal profiles and their relationship to health intentions and behaviors: A test on a Norwegian general population sample

We investigated the temporal profiles of a Norwegian general population sample and their relation to health behaviors and intentions. The profiles were based on variables from the present and future dimensions of the Zimbardo Time Perspective Inventory (ZTPI), the Consideration of Future Consequences Scale (CFCS), and the combination of both scales. The analysis revealed that there were only two stable clusters that corresponded to the present and the future profiles. Generally, CFCS‐based present and future profiles were more effective at predicting health behaviors and intentions than ZTPI‐based profiles. Profiles based on the CFCS variables were more predictive of eating behaviors. However, the profiles based on the combination of both CFCS and ZTPI were more predictive of smoking, exercising, and health intentions than the profiles based solely on the CFCS. The variation in walking was explained only by the profiles based on a combination of CFCS and ZTPI.     

Strengthening and Expanding Child Services in Low Resource Communities: The Role of Task‐Shifting and Just‐in‐Time Training

In the United States, the demand for child mental health services is increasing, while the supply is limited by workforce shortages. These shortages are unlikely to be corrected without significant structural changes in how mental health services are provided. One strategy for bridging this gap is task‐shifting, defined as a process by which services that are typically delivered by professionals are moved to individuals with less extensive qualifications or training. Although task‐shifting can increase the size of the workforce, there are challenges related to training new workers. In this paper, we propose Just‐In‐Time Training (JITT) as one strategy for improving task‐shifting efforts. We define JITT as on‐demand training experiences that only include what is necessary, when it is necessary, to promote competent service delivery. We offer a proof of concept from our own work shifting counseling and academic support tasks from school mental health professionals to pre‐baccalaureate mentors, citing lessons learned during our iterative process of JITT development. We conclude with a series of key considerations for scaling up the pairing of task‐shifting and JITT, including expanding the science of JITT and anticipating how task‐shifting and JITT would work within the context of dynamic mental health service systems.     

Weighted vest effects on impact forces and joint work during vertical jump landings in men and women

Weighted vest (WV) use during vertical jump landings (VJL) does not appear to alter peak vertical ground reaction forces (GRF) or peak joint torques. However, WV effects on joint work and sex differences during VJL are not well understood. This study assessed WV effects on vertical GRF and sagittal joint work during VJL in men and women. Twelve men and 12 women performed VJL wearing a WV with zero added mass (unloaded) and with 10% body mass (loaded) while GRF and kinematic data were obtained. Mixed-model analyses of variance (α = 0.05) and effect sizes (ES) were used to assess differences between sexes and/or load conditions. Regardless of sex, greater landing height (p < 0.001; ES = 0.37) and peak vertical GRF (p = 0.001; ES 0.51) occurred when unloaded, while greater landing time (p = 0.001; ES = 0.46) and negative lower extremity work (p < 0.001; ES = 0.41) occurred when loaded through greater negative work about the hip (p = 0.001; ES = 0.27) and ankle (p = 0.020; ES = 0.27). No differences in hip (p = 0.753; ES = 0.03), knee (p = 0.588; ES = 0.07), or ankle (p = 0.580; ES = 0.09) joint displacement were detected between loaded and unloaded conditions. Men exhibited greater landing heights (p < 0.001; ES = 2.49) and greater peak vertical GRF than women (p = 0.007; ES = 1.18), though women exhibited greater negative lower extremity work (p < 0.001; ES = 1.98) than men through greater negative knee (p < 0.001; ES = 1.98) and ankle (p = 0.032; ES = 0.94) work. No sex differences were detected for joint angular displacement about the hip (p = 0.475; ES = 0.30), knee (p = 0.666; ES = 0.18), or ankle (p = 0.084; ES = 0.71). These data revealed a unique load accommodation strategy during VJL with a WV characterized by greater lower extremity joint work performed via increased joint torque despite lesser landing height and peak vertical GRF. Women appear to perform greater lower extremity joint work than men during VJL despite lesser landing height and peak vertical GRF. Current and prospective WV users should be aware of their load accommodation strategy during VJL with an external load. Women may consider developing more refined load accommodation strategies for VJL regardless of whether external loading is applied to avoid performing excessive amounts of lower extremity work.     

Future Time Perspective and Gratitude in Daily Life: A Micro‐longitudinal Study

Preliminary cross‐sectional evidence suggests that future time perspective (FTP) is associated with dispositional gratitude, but research on daily perceptions of FTP and their relations to daily gratitude is lacking. In this study, we addressed this gap by examining how FTP and gratitude jointly unfold in daily life and how these relations vary within and across individuals. A micro‐longitudinal design (N = 331, adults aged 18–77) with daily assessments over two workweeks was employed to examine the relations between gratitude and two components of FTP (remaining opportunities and time). Three important results from random intercepts cross‐lagged panel models stand out. First, we found evidence for within‐person day‐to‐day carry‐over effects in FTP and gratitude. Second, FTP and gratitude were systematically related within and across individuals. Third, age and dispositional forms of FTP and gratitude predicted between‐person differences in FTP and gratitude in daily life. Finally, exploratory multilevel analyses have shown that the associations between daily FTP and gratitude vary across ages at the between‐person level but not at the within‐person level. Overall, these findings advance our understanding of perceptions of FTP in daily life and their associations with gratitude in adulthood. © 2019 European Association of Personality Psychology     

内隐序列学习中的渐进意识：来自习得知识的发展与遗忘的证据

内隐学习过程中习得知识的发展变化是内隐学习的一个重要特征。本研究采用序列反应时范式通过操纵学习进程（实验一）和学习与测验间的时间间隔（实验二）来考察内隐序列学习进程中习得知识的发展与遗忘特征,结果发现,（1）内隐序列学习中习得的无意识知识多于意识知识;（2）随着学习的推进,意识知识逐渐增加,而无意识知识则呈减弱趋势,证实了内隐学习的长时功效;（3）习得的无意识知识具有抗遗忘性,而意识知识在间隔8小时之后才开始出现遗忘。     

表象编码对基于词表的错误记忆的影响

采用DRM范式,探讨不同表象编码时间和不同表象编码加工程度对基于词表的错误记忆的影响。在学习阶段,被试对呈现的词进行记忆。在测试阶段,被试在每个词列表学习结束后立即对该词列表进行自由回忆,分心任务结束后进行再认测试。实验结果发现：（1）被试在5秒编码条件下的错误记忆率显著低于3秒编码条件下的错误记忆率;（2）在5秒表象编码时间条件下,深加工组被试的错误记忆率显著低于浅加工组。这说明在较长的编码时间里,时间越长记住的细节信息越多,错误记忆率越低;加工程度越深,错误记忆率越低。