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51.
Two experiments investigated home-based reinforcement contingencies to control excessive behavior in normal classrooms. Subjects were, respectively, a 12-yr-old fifth-grade boy and a 9-yr-old fourth-grade boy, each in a separate classroom and with a different teacher. Following baseline observations in which observers recorded several categories of student behavior and teacher-student interaction, separate conferences were held including parents of the two children, the principal, teachers, and experimenters. A daily report-card procedure was agreed on, stipulating a one-day suspension from school following three successive “undesirable” daily report cards as well as the supervision of home-based privileges and other reinforcers usually contingent on satisfactory daily reports. Measurements of daily rates of teacher attention indicated no important change in this variable throughout the various experimental conditions. The daily report procedure significantly reduced disruptive classroom behavior. In a second experiment, a teacher-operated timer cued her own time-sample observations. Reliability measures revealed that the teacher could accurately measure the child's behavior while she was teaching the class. The procedure was ultimately successfully expanded to the teacher's total contact hours each day.  相似文献   
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Five pigeons were given single-stimulus training on an 8-sec differential-reinforcement-of-low-rate schedule followed by steady-state generalization training using 12 wavelength stimuli. Three birds had a high percentage of reinforced responses on the training schedule and flat generalization gradients of total responses. The birds with fewer reinforced responses had much steeper generalization gradients. Generalization gradients plotted as a function of both stimulus wavelength and interresponse time showed that for most birds, stimulus control was restricted to responses with long interresponse times. Responses with very short interresponse times were not under stimulus control and there was some evidence of inhibitory control of short interresponse times. Interresponse-times-per-opportunity functions, plotted as a function of stimulus wavelength, showed that stimulus wavelength controlled the temporal distribution of responses, rather than the overall rate of response. The data indicate that the differential-reinforcement-of-low-rate schedule generates several response categories that are controlled in different ways by wavelength and time-correlated stimuli, and that averaging responses regardless of interresponse-time length obscures this control.  相似文献   
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Over several decades, the consideration of future consequences (CFC) construct has been used to explain and predict health behaviors. However, the reported associations between CFC and health behaviors are relatively weak, leading to the low explanatory power of the models. Recent research suggests that CFC can be a domain‐specific construct. In this study, we explored the psychometric properties of the Norwegian CFC‐general and CFC‐health questionnaires in terms of factor structure and discriminant and convergent validity and tested the association between the general and domain‐specific CFC and exercise and eating behaviors. In a randomized survey experiment, 1,001 university students were assigned to either a CFC‐general or a CFC‐health questionnaire. In the tested models, two dimensions of CFC, consideration of immediate consequences (CFC‐I) and consideration of future consequences (CFC‐F), were independent variables. The exercise and eating behaviors, measured both as self‐evaluated behaviors and self‐reported frequency measures, were dependent variables. The results showed that in both CFC‐general and CFC‐health, CFC‐I and CFC‐F are distinct dimensions that differentially explain variance in health behaviors. A domain‐specific CFC‐health explained a significantly higher amount of variance in self‐reported eating and exercising behaviors than a general CFC. Self‐evaluated health behaviors were better explained by CFC than self‐reported behavioral frequencies. Practical implications of the findings and avenues for future research are discussed.  相似文献   
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IntroductionOrganizations which engage in the promotion of well-being are likely to prevent mental health issues in workers. Mindfulness-based interventions offer new perspectives to increase well-being at work. However, the issue of finding time and framework to practice at work is important. Recent studies suggested that informal mindfulness practices could be useful in reducing stress and increasing well-being.ObjectiveThe present study aimed to study how the duration and type of mindfulness practice may enhance employees’ well-being.MethodA multi-method (qualitative and quantitative), controlled pre/post design study (N = 72) was conducted to collect data about the type of preferred mindfulness practices used during an 8-week MBSR program, and to analyse the effects of the program on employees’ well-being. Number of sessions, number of days of practice, and practice time per day were used as moderators.ResultsParticipants reported a preferential use of brief, informal practices. Employees who followed the MBSR program reported higher levels of well-being compared to the wait-list control group (η2 = .194). Those who preferentially used informal practices showed the same increase in well-being as those who reported preferentially using formal practices. The number of days of practice did not moderate the effect of the intervention on well-being.ConclusionBrief and informal mindfulness practices appear to be a promising means of increasing well-being in everyday life. Further research is needed to compare an 8-week mainly informal mindfulness-based program to a classical MBSR program to identify whether informal practices may be sufficient to increasing employees’ well-being.  相似文献   
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New transport trends have emerged in developing countries to promote bicycling due to its individual and societal benefits. Although bicycle infrastructure provision has been one of the most utilised strategies to encourage bicycling, it has had a limited immediate impact on the bicycling modal share. Published research indicates the need to incorporate the psychosocial dimension to understand commuters' transport behaviour and explain why bicycling infrastructure usage is lower than expected. This study highlights the processes behind bicycle mode choice decisions, explicitly incorporating pro-bicycle attitudes and habits, while also considering the influence of socioeconomic, bicycle facilities and bicycling experience variables on shaping that attitude. For this purpose, an online survey was designed and sent to students, faculty members and staff of two Chilean universities to collect ad-hoc data. The modelling used an approach based on an integrated choice and latent variable model. The main findings are: attitude in itself is a relevant construct to explain behaviour; bicycling infrastructure contribute to explain bicycle choice but only indirectly through attitude; socioeconomic characteristics, bicycling familiarity and practical issues have both a direct effect on bicycle choice decision and an indirect one by fostering pro-bicycling attitudes. Additionally, results show that the explicit inclusion of habit reduces the contribution of pro-bicycle attitude in explaining bicycle choice. This might be due to interaction and reinforcement between habit and attitude.  相似文献   
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In this paper, I deploy Gallagher et al.’s theory of Direct Social Perception (DSP) to help explain how we perceive others’ subjective time. This process of second-person temporal perception plays an important role in interpersonal interaction, yet is often glossed over in discussions of intersubjectivity. Using A.D. Craig (2009) ‘awareness’ model of subjective time to unify converging evidence that subjective time is embodied, affective, and situated, I argue that subjective time cannot be considered as a hidden or invisible aspect of a private mind, but is partially externally visible through our gestures, expressions, and other behaviours as they unfold within a particular context. My central thesis is that, in face to face interactions, we are able to directly perceive these visible components of other people’s subjective time. This is made possible by our “enculturated” (Menary, 2015) and enactive perceptual faculties. The process of social perception is not a passive, unidirectional affair where static information about one person’s subjective time is transmitted to the other, but rather inextricably linked with action (both at the personal and subpersonal level) and interaction effects produced by a dynamic coupling between participants. Such an enactive perspective reveals how others’ subjective time can be perceived in everyday interactions.  相似文献   
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拖延是指尽管预见到拖延会带来不利后果, 人们仍自愿推迟开始或完成某一计划好的任务。研究表明, 不同文化背景下有15%~20%的成年人存在慢性拖延, 超过70%的学生承认自己存在学业拖延, 部分学生还会形成特质性拖延。严重的拖延不仅影响人们的学业、工作和生活, 甚至还会危害到人们的身心健康。鉴于目前对于拖延产生的核心机制、形成的关键期以及发展认知神经机制还不是很清楚, 本项目拟从拖延的时间决策理论出发, 首先系统探明拖延决策的核心机制, 尤其是远期价值评估、延迟折扣和自我控制能力等在拖延决策过程中的认知加工机制和神经基础; 其次结合行为-环境变量-脑的多模态数据, 从发展角度探究拖延形成的关键期(敏感期)、影响因素以及发展认知神经机制; 最后从行为干预和脑的可塑性角度出发, 试图制定各关键年龄阶段拖延预防与干预的临床方案。本研究的开展对于把握拖延形成的认知机制、神经基础及其发展规律具有重要的科学价值, 对于拖延行为的预防和干预也具有直接的现实意义。  相似文献   
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