依恋焦虑对大学生囤积行为的影响:无法忍受不确定性与经验性回避的序列中介作用

为探讨依恋焦虑、无法忍受不确定性、经验性回避与大学生囤积行为的关系，本研究构建了一个序列中介模型。采用问卷法对黑龙江等地高校的610名大学生进行调查研究。结果发现：（1）无法忍受不确定性和经验性回避在依恋焦虑与大学生囤积行为之间均起部分中介作用；（2）无法忍受不确定性和经验性回避在依恋焦虑和大学生囤积行为之间构成序列中介，即依恋焦虑个体通过增强无法忍受不确定性，从而提高经验性回避倾向，进而增加大学生的囤积行为。研究进一步从认知和应对手段角度来考察依恋焦虑对大学生囤积行为的作用机制，对囤积行为的预防和干预具有启示意义。     

负面评价恐惧对社交焦虑的影响:基于社交焦虑的认知行为模型

在社交焦虑认知行为模型的理论视角下，本研究拟探讨负面评价恐惧、不确定性容忍度和依赖型自我构念对社交焦虑的影响及其作用机制。以424名大学生为被试，使用问卷调查法的研究结果表明：（1）负面评价恐惧对社交焦虑有显著预测作用，且不确定性容忍度在这一关系中的中介作用显著；（2）不确定性容忍度的间接效应受到依赖型自我构念的调节。具体而言，该中介效应在高依赖型自我构念群体中更为显著。本研究结果不仅有助于揭示负面评价恐惧对社交焦虑的影响及其作用机制，而且对社交焦虑的预防和干预也有一定的理论和实践指导价值。     

Is avoidance of illness uncertainty associated with distress during oncology treatment? A daily diary study

Objective: The aim of this study was to explore the daily relationship between illness uncertainty, avoidance of uncertainty, well-being and treatment-related distress among patients with cancer receiving treatment with curative intent. It was hypothesised that daily illness uncertainty, daily avoidance of uncertainty and daily treatment-related distress would be negatively associated with daily well-being. It was also hypothesised that daily illness uncertainty and daily avoidance of uncertainty would be positively associated with daily treatment-related distress.

Design: Thirty-one patients receiving oncology treatment with curative intent completed a daily diary for seven consecutive days. Data were analysed using multilevel modelling.

Main outcome measures: Daily illness uncertainty, avoidance of illness uncertainty, treatment-related distress and well-being.

Results: As hypothesised, on days when patients with cancer reported heightened treatment-related distress they experienced diminished well-being. And on days when patients reported more experiential avoidance of illness uncertainty, they also experienced heightened levels of treatment-related distress. No other daily associations were significant.

Conclusion: These findings indicate that patients with cancer experience day-to-day fluctuations in distress and well-being throughout oncology treatment. Avoidance of illness uncertainty-related thoughts and/or emotions are associated with daily distress, but not daily well-being.     

The temporal-relevance temporal-uncertainty model of prospective duration judgment

A model aimed at explaining prospective duration judgments in real life settings (as well as in the laboratory) is presented. The model is based on the assumption that situational meaning is continuously being extracted by humans’ perceptual and cognitive information processing systems. Time is one of the important dimensions of situational meaning. Based on the situational meaning, a value for Temporal Relevance is set. Temporal Relevance reflects the importance of temporal aspects for enabling adaptive behavior in a specific moment in time. When Temporal Relevance is above a certain threshold a prospective duration judgment process is evoked automatically. In addition, a search for relevant temporal information is taking place and its outcomes determine the level of Temporal Uncertainty which reflects the degree of knowledge one has regarding temporal aspects of the task to be performed. The levels of Temporal Relevance and Temporal Uncertainty determine the amount of attentional resources allocated for timing by the executive system. The merit of the model is in connecting timing processes with the ongoing general information processing stream. The model rests on findings in various domains which indicate that cognitive-relevance and self-relevance are powerful determinants of resource allocation policy. The feasibility of the model is demonstrated by analyzing various temporal phenomena. Suggestions for further empirical validation of the model are presented.     

The Effect of Load Uncertainty on Neuromotor Control in Catching: Gender Differences and Short Foreperiods

Abstract

To reveal how the CNS copes with load uncertainty in catching, electromyography (EMG) was recorded in 15 females and 14 males while catching visually identical balls of known and unknown weights under varied (1–10?s) and constant (1?s) foreperiods (warning time). EMG integrals, which represented total muscle activity, were computed for three time intervals prior to the catch (anticipatory), and one interval after (compensatory). Load uncertainty caused the CNS to utilize an anticipatory strategy in several muscles, primarily during the ball-flight interval, characterized by preparation to catch balls of unknown weight by utilizing an average of 99.7% of the muscle activation used to catch the heaviest ball under the known weight condition. The constant 1?s foreperiod, which permitted precise temporal anticipation of ball release, did not influence the anticipatory strategy adopted by the CNS to cope with load uncertainty. There were no observed differences in the neuromotor control used by men and women to manage load uncertainty in catching, although there was an interesting difference in the way men and women employed the triceps to prepare to catch balls of a known weight.     

Behavioural interventions for micro-mobility adoption: Low-hanging fruits or hard nuts to crack?

This study explores the potential and challenges of applying behavioural interventions to promote micro-mobility adoption. Our online experiments with New York City residents showed that nudges and faming improved respondents’ willingness to adopt e-scooters significantly. Moreover, our experiments spanned over the pre-, during- and post- COVID-19 lockdown period in New York City. Findings from this natural experiment revealed that the effect of these behavioural interventions varied significantly during the pandemic, likely due to a heightened level of health consciousness and a new perspective regarding social interactions. Behavioural tools cannot be taken off-the-shelf and applied as a blanket policy. Individual and group characteristics have to be assessed to devise the pre-eminent behavioural interventions for a particular target audience. More experiments across a wide range of economic, social, cultural, and political settings are needed to guide the application of behavioural interventions in transportation studies.