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281.
282.
Interpersonal dynamics in sport: The role of artificial neural networks and 3-D analysis 总被引:1,自引:0,他引:1
In previous attempts to identify dynamical systems properties in patterns of play in team sports, only 2-D analysis methods
have been used, implying that the plane of motion must be preselected and that movements out of the chosen plane are ignored.
In the present study, we examined the usefulness of 3-D methods of analysis for establishing the presence of dynamical systems
properties, such as phase transitions and symmetry-breaking processes in the team sport of rugby. Artificial neural networks
(ANN s) were employed to reconstruct the 3-D performance space in a typical one-versus-one subphase of rugby. Results confirm
that ANs are reliable tools for reconstructing a 3-D performance space and may be instrumental in identifying pattern formation
in team sports generally. 相似文献
283.
Existing laboratory-based research in adult samples has suggested that anxiety sensitivity (AS) increases an individual's propensity to experience pain-related anxiety, which in turn enhances pain responsivity. Such relationships have not been examined in younger populations. Thus, the present study used structural equation modeling (SEM) to test a conceptual model in which AS would evidence an indirect relationship with pain intensity via its contribution to state-specific anticipatory anxiety in relation to a variety of laboratory pain tasks (cold pressor, thermal heat, and pressure pain) in 234 healthy children (116 girls; mean age = 12.6 years, range = 8-18 years). The model further hypothesized that existing anxious symptomatology would demonstrate a direct relationship with pain intensity. Results of the SEM supported the proposed conceptual model with the total indirect effect of AS accounting for 29% of the variance in laboratory pain intensity via its effects on pain-related anticipatory anxiety. AS did not however, evidence a direct relationship with pain intensity. Anxious symptomatology on the other hand, demonstrated a significant direct effect on pain intensity, accounting for 15% of variance. The combined effects of AS, anxiety symptoms, and anticipatory anxiety together explained 62% of the variance in pain intensity. These relationships did not differ for boys and girls, indicating no moderating effect of sex in the proposed model. The present results support the potential benefit of assessing both AS and anxiety symptoms in children prior to undergoing painful stimulation. 相似文献
284.
We present a statistical model for inference with response time (RT) distributions. The model has the following features. First, it provides a means of estimating the shape, scale, and location (shift) of RT distributions. Second, it is hierarchical and models between-subjects and within-subjects variability simultaneously. Third, inference with the model is Bayesian and provides a principled and efficient means of pooling information across disparate data from different individuals. Because the model efficiently pools information across individuals, it is particularly well suited for those common cases in which the researcher collects a limited number of observations from several participants. Monte Carlo simulations reveal that the hierarchical Bayesian model provides more accurate estimates than several popular competitors do. We illustrate the model by providing an analysis of the symbolic distance effect in which participants can more quickly ascertain the relationship between nonadjacent digits than that between adjacent digits. 相似文献
285.
本研究基于压力认知评估理论,从理性认知视角探讨了职场上行比较存在的提升自我和贬损他人效应,以及驱动不同路径效应生效的边界条件和传导机制。本研究通过轮询设计,在3个时间点收集了来自60个团队240位成员的720份人际配对样本,并采用社会关系模型分析数据得出以下结论:在低水平绩效证明目标导向情况下,员工倾向于将上行比较对象评估为挑战,进而激发员工向上行比较对象的学习行为;相反,在高水平绩效证明目标导向情况下,员工倾向于将上行比较对象评估为威胁,进而驱使员工采取针对上行比较对象的社会阻抑。 相似文献
286.
Lu Ou Michael D. Hunter Zhaohua Lu Cynthia A. Stifter Sy-Miin Chow 《The British journal of mathematical and statistical psychology》2023,76(3):462-490
Many intensive longitudinal measurements are collected at irregularly spaced time intervals, and involve complex, possibly nonlinear and heterogeneous patterns of change. Effective modelling of such change processes requires continuous-time differential equation models that may be nonlinear and include mixed effects in the parameters. One approach of fitting such models is to define random effect variables as additional latent variables in a stochastic differential equation (SDE) model of choice, and use estimation algorithms designed for fitting SDE models, such as the continuous-discrete extended Kalman filter (CDEKF) approach implemented in the dynr R package, to estimate the random effect variables as latent variables. However, this approach's efficacy and identification constraints in handling mixed-effects SDE models have not been investigated. In the current study, we analytically inspect the identification constraints of using the CDEKF approach to fit nonlinear mixed-effects SDE models; extend a published model of emotions to a nonlinear mixed-effects SDE model as an example, and fit it to a set of irregularly spaced ecological momentary assessment data; and evaluate the feasibility of the proposed approach to fit the model through a Monte Carlo simulation study. Results show that the proposed approach produces reasonable parameter and standard error estimates when some identification constraint is met. We address the effects of sample size, process noise variance, and data spacing conditions on estimation results. 相似文献
287.
Ziyi Wang Cheng Chen Jian Mo Fan Lu Jiatao Ma Chuansheng Chen Guibing He 《European journal of social psychology》2023,53(1):230-244
Religious individuals often prefer future rewards more in intertemporal decision-making than nonreligious individuals, but the reasons behind this preference remain under-investigated. Focusing on decision-making in Buddhist culture, the current study aimed to examine three potential mechanisms: Buddhist practices, self-control and belief in future-oriented concepts. In five studies, we consistently found that nonbelievers’ preference ratings for Larger and Later (LL) options increased after visiting a temple (Study 1, n = 99) or participating in Buddha name chanting (Studies 2–5, n = 314). We also found in Studies 3 and 4 that this effect was mediated by the individual's level of self-control, but no evidence was found to support the mediation of belief in future-oriented concepts. These results contribute to the work attesting to the effect of religious practices on individuals (especially nonbelievers). They also provide a mechanism (self-control) for the positive correlation between individuals’ religiousness and preference for future rewards in intertemporal decision-making. 相似文献
288.
Su Liu Lu Zheng Alexander Scott English Thomas Talhelm Junjie Sun Shuhong Xu 《Social and Personality Psychology Compass》2023,17(8):e12786
The COVID-19 pandemic may have been a difficult time to join a new organization. Drawing on the feelings-as-information theory, this study explores how COVID-19 lockdown anxiety influenced newcomers' job satisfaction during their first few months of work. We tested 357 new employees working in 84 cities across China. We conducted a longitudinal study, and participants were invited to complete the same survey at two time points. Cross-lagged panel analysis was conducted to test our hypotheses. We confirmed that COVID-19 lockdown anxiety at Time 1 predicted less job satisfaction at Time 2, whereas the data did not support the idea of reverse causality. These findings suggest public health crises like the pandemic can impact newcomers' job satisfaction, especially during China's Zero-Covid Policy. 相似文献
289.
21世纪的中西医结合 总被引:2,自引:0,他引:2
吕维柏 《医学与哲学(人文社会医学版)》1998,19(12):617-620
世界各国对两种医学有“否定、容忍、平行”几种,都认为传统医学不科学,歧视之。中国采取“结合”原则,使中医学获大发。在相互理解基础上达到中西医团结,又在此基础取长补短,达到中西医结合关键是医疗效,使其建立在现代科学基础上,可信可重复,组织西学中是重要关键措施。 相似文献
290.