The role of drivers’ social interactions in their driving behavior: Empirical evidence and implications for car-following and traffic flow

Models for describing the microscopic driving behavior rarely consider the “social effects” on drivers’ driving decisions. However, social effect can be generated due to interactions with surrounding vehicles and affect drivers’ driving behavior, e.g., the interactions result in imitating the behavior of peer drivers. Therefore, social environment and peer influence can impact the drivers’ instantaneous behavior and shift the individuals’ driving state. This study aims to explore empirical evidence for existence of a social effect, i.e., when a fast-moving vehicle passes a subject vehicle, does the driver mimic the behavior of passing vehicle? High-resolution Basic Safety Message data set (N = 151,380,578) from the Safety Pilot Model Deployment program in Ann Arbor, Michigan, is used to explore the issue. The data relates to positions, speeds, and accelerations of 63 host vehicles traveling in connected vehicles with detailed information on surrounding environment at a frequency of 10 Hz. Rigorous random parameter logit models are estimated to capture the heterogeneity among the observations and to explore if the correlates of social effect can vary both positively and negatively. Results show that subject drivers do mimic the behavior of passing vehicles –in 16 percent of passing events (N = 18,099 total passings occurred in freeways), subject vehicle drivers are observed to follow the passing vehicles accelerating. We found that only 1.2 percent of drivers normally sped up (10 km/hr in 10 s) during their trips, when they were not passed by other vehicles. However, if passed by a high speed vehicle the percentage of drivers who sped up is 16.0 percent. The speed change of at least 10 km/hr within 10 s duration is considered as accelerating threshold. Furthermore, the acceleration of subject vehicle is more likely if the speed of subject driver is higher and more surrounding vehicles are present. Interestingly, if the difference with passing vehicle speed is high, the likelihood of subject driver’s acceleration is lower, consistent with expectation that if such differences are too high, the subject driver may be minimally affected. The study provides new evidence that drivers’ social interactions can change traffic flow and implications of the study results are discussed.     

Correlations of multiple rider behaviors with self-reported attitudes,perspectives on traffic rule strictness and social desirability

Powered Two-Wheeler (PTW) riders constitute a very vulnerable group of road users, while riding a PTW is considerably more dangerous than using any other motor vehicle. Behavioral issues have been identified major moderating factors to PTW crashes, as riders display great variability in their attitudes towards road safety. Τhe aim of this paper is to present a thorough, overarching structure of relationships correlating various unsafe stated PTW rider behaviors (riding after alcohol consumption, speeding, helmet use and texting) with several self-reported attitude parameters and factors regarding rider perspectives on traffic rule strictness and social desirability. A structural equation model (SEM) was developed using data from the ESRA2 survey, which provided a broad sample encompassing 5,958 respondent riders from 32 countries. Numerous statistical relationships were discovered and quantified correlating the four examined unsafe rider behaviors with eight latent unobserved variables. All covariances between unsafe behaviors were found to be positive and statistically significant, indicating that a rider who will engage more frequently in every single one of the four examined unsafe riding behaviors is more likely to also engage in all the others as well.     

Athlete perspectives on the enablers and barriers to nutritional adherence in high-performance sport

ObjectivesPoor adherence to nutritional guidance by athletes may compromise their health and performance. Enhancing adherence is therefore an important performance and welfare strategy. The aim of this study was to qualitatively explore the barriers and enablers of elite athletes' adherence to nutritional guidelines.DesignUnderpinned by our constructionist epistemological position and our relativist ontology, we conducted a qualitative study using focus groups.MethodsWe used the Capability, Opportunity, and Motivation Behaviour (COM-B) model and the Theoretical Domains Framework (TDF) to conduct focus group discussions with a purposive sample of 39 UK-based funded athletes (mean age = 23 ± 3.81), participating in either Olympic and Paralympic sport (n = 30) or professional sport (n = 9), who had access to a nutritionist. Data were analysed using reflexive thematic analysis.ResultsAthlete adherence to nutritional guidance was seasonal and included inadequate energy intakes and episodes of binge eating. Underpinning these behaviours, athletes' emotional barriers (motivation) are reinforced through their social interactions within the high-performance environment (opportunity) and athletes' training environment limits developmental opportunities for food planning (capability). However, a holistic-developmental approach by the sports nutritionists (opportunity) supports athlete wellbeing and nutritional adherence.ConclusionThese findings advance theoretical understanding of the barriers and enablers of nutritional adherence amongst elite-level athletes in high-performance sport and present a number of significant implications for athlete support personnel seeking to enhance performance in demanding sporting contexts. Drawing on the Behaviour Change Wheel (BCW), recommendations include the need to 1) train and educate sports nutritionists in human behaviour, 2) update regulations for sports nutrition profession practice to acknowledge the skills required to support athletes' emotional wellbeing, 3), educate coaches on the sensitivity of body weight and composition and develop guidelines for monitoring athletes' body weight and composition in sport, 4) persuade influential leaders to develop culture guidelines that shift the performance-narrative of high-performance (i.e., environmental restructuring).     

文字的“偷心术”:营销中的字体效应

文字是营销中视觉传播的重要元素, 它直接影响消费者对品牌的第一印象。文字的重要性不仅体现在文本内容上, 还体现在字形设计对消费者的影响上。字体的研究仍存在较大的空缺, 且现有文献多分散于语言学、设计学和心理学等不同学科领域。目前有较多存在矛盾的结论缺乏系统的框架支持, 本文为研究者提供了完整的字体效应研究框架。将字体进行定义及分类之后, 主要探讨了字体对消费者感知和行为的影响, 以及字体效应的三大心理机制, 即感知一致性、感知记忆性和感知人性化。在此基础上讨论了字体受到消费者特质、产品类型与外部环境的调节作用。最后, 深入分析了字体在市场营销中的理论和管理实践价值, 以及未来研究方向。     

组织中个体主动性行为“利与弊”

个体主动性行为是组织中个体主动做出的面向未来和面向变革的工作行为, 近年来成为组织行为研究领域的重要议题。从现有研究来看: (1)在研究主题上, 多数研究发现了个体主动性行为可以带来正向结果, 个别学者也注意到了个体主动性行为的代价; (2)在分析视角上, 主要包括个体主动性行为对个体层面和组织情境层面的正向与负向影响; (3)在理论机制上, 个体主动性行为的“利弊”效应可用优势互补理论、自我决定理论和归因理论来解释。未来研究可着重进行以下理论整合: (1)从个体主动性行为类型出发, 基于智慧主动性的视角揭示其内在机制; (2)从主动性行为者和观察者特征两面性的视角, 实证探讨其背后机理; (3)从主动性行为主客体特征的发展视角进行动态研究。     

组织社会化视角下员工组织公民行为动态变化趋势及其形成机制

日益复杂多变的市场竞争环境对组织的灵活性和适应性都提出了更高的要求, 员工的组织公民行为在这一背景下显得尤为重要, 因它能有效提高组织在不确定环境下的生存能力和核心竞争力、提升组织的绩效水平。虽然已有大量研究关注员工的组织公民行为, 但研究者多采用相对静态的研究范式, 而忽视了组织公民行为的长期动态变化趋势。基于组织社会化视角, 本研究重点关注新员工和工作变更员工组织公民行为的长期动态变化趋势、探索影响组织公民行为动态变化趋势的内在机制和边界条件, 以期为培养和激发员工持续性高水平的组织公民行为提供可参考的理论依据。     

受害者视角下职场不文明行为对组织公民行为影响的双路径机制

本文基于资源保存理论,探讨职场不文明行为对组织公民行为的影响机制及作用边界。通过问卷调查315份员工和领导的配对样本数据,结果表明：职场不文明行为负向预测组织公民行为,情绪耗竭、组织自尊中介了职场不文明行为与组织公民行为间的关系;心理韧性调节了情绪耗竭、组织自尊在二者间的中介作用。     

辩证行为疗法：理论背景、治疗效果及作用机制

辨证行为疗法（Dialectical Behavior Therapy, DBT）于20世纪90年代初由美国治疗师Linehan创立。作为第三代行为治疗之一,该疗法以行为主义理论、辩证哲学、生物社会理论及禅宗为哲学基础,通过增加患者的技能使用,提高其情绪调节能力,以达到治疗目的。临床研究已证明其在边缘人格障碍,自杀及自伤行为中具有良好的治疗效果,除此之外也广泛适用于其他心理障碍及群体。DBT的临床效果、改变机制及拓展应用都需进一步研究。     

特质感恩与状态感恩对初中生合作水平的影响

为探究感恩对初中生合作水平的影响,本研究采用追踪调查与实验相结合的方法,通过两个研究分别探究了特质感恩与内在的合作倾向,状态感恩与外在的合作行为之间的关系。结果发现：（1）初中女生的特质感恩、人物取向感恩显著高于男生;初一下的合作倾向显著低于初一上、初二上时期;（2）初中生的特质感恩水平能显著正向预测合作倾向,状态感恩的唤起会增加公共物品困境中的合作行为。     

父亲抑郁对幼儿问题行为的影响:教养效能感和教养方式的中介作用

以310名幼儿父亲为研究对象,采用流行病调查中心抑郁量表、父母教养能力感量表的教养效能感分问卷、父母教养方式评价量表和Conners儿童行为问卷,考察父亲教养效能感和教养方式在父亲抑郁与幼儿问题行为间的中介作用。结果显示:(1)父亲抑郁、专制粗暴、情感联系和幼儿问题行为两两之间均显著正相关,父亲教养效能感、民主关怀、宽容理解两两之间均显著正相关,父亲教养效能感、民主关怀、宽容理解分别与父亲抑郁、专制粗暴、情感联系和幼儿问题行为两两之间显著负相关;(2)父亲抑郁对幼儿问题行为具有显著的正向预测作用;(3)父亲教养效能感和自身的民主关怀、专制粗暴、情感联系不仅分别在父亲抑郁与幼儿问题行为之间起部分中介作用,而且在父亲抑郁与幼儿问题行为之间起链式中介作用。