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101.
Currently, most exposure-based treatments call for clinicians to assess for and remove all safety behaviors during exposure tasks. However, the notion that safety behaviors are detrimental across all scenarios has recently been challenged, and research regarding the effects of safety behaviors on exposure outcomes is limited and inconsistent. In clinical practice, classifying a strategy as a safety behavior can be a complex and challenging endeavor, particularly when distinguishing between harmful safety behaviors and helpful coping behaviors. We outline an approach that emphasizes the pragmatic truth criterion and uses functional outcomes to classify behaviors as serving either safety or coping functions. Our focus on doing what “works” simplifies decision-making for clinicians and maintains the focus of treatment on enhancing functioning. We propose a model for using functional outcomes to distinguish between safety and coping behaviors and illustrate our approach through case examples.  相似文献   
102.
In this introduction to the Special Issue on the use of sports data to inform research and practice in organizations, we first outline the state of research in this flourishing area to provide the need for this Special Issue. We note a similarity in the study of organizations and the study of sports and, in turn, how studies of sports can readily be compared to and applied to the study and practice of work in organizations. Next, we describe each of the six articles in this Special Issue, particularly noting that the articles sampled data from a variety of sporting domains, ranging from the National Football League to Olympic ice hockey. Topics of the studies included travel stress on team performance; pay standing and task performance; job hopping, organizational change, and performance of new employees; team work experience and performance; the effect of leadership transitions and changes to performance and human capital quality; and the effects of star performers and core team members. We then outline how these studies fit with the call for this Special Issue and provide common themes, such as methodological sophistication and novel analyses and the opportunity for sports data to provide both academic and practitioner audiences an awareness of evidence-based approaches to studies of work. We end this introductory article by providing some challenges in using sports data to enhance the study of organizations and possible areas for future research.  相似文献   
103.
104.
Despite increasing interest in the effects of parenting stress on children and families, many questions remain regarding the nature of parenting stress and the mechanism through which stress exerts its influence across time. In this study, cumulative parenting stress was assessed across the preschool period in a sample of 125 typically developing children and their mothers. Indices of parenting stress included both major life events stress‐assessed annually from age 3 to 5, and parenting daily hassles assessed every 6 months across the same period. Naturalistic home observations were conducted when children were age 5, during which measures of parent and child interactive behaviour as well as dyadic pleasure and dyadic conflict were obtained. Mothers also completed the CBCL to assess children's behaviour problems. Results indicated that parenting daily hassles and major life stress are relatively stable across the preschool period. Both cumulative stress indices also proved to be important predictors of parent and child behaviour and dyadic interaction, although the predictions were somewhat differential. Despite meaningful relations between the stress factors and child well being, no evidence was found to support the premise that parent behaviour mediates the association between parenting stress and child outcomes. Results are discussed within a developmental framework to understand the stability and complexity of cumulative stress associations to early parent–child relationships. Copyright © 2005 John Wiley & Sons, Ltd.  相似文献   
105.
This paper presents the results of a 1‐year prospective study of violence perpetration, drug use, and spirituality among continuation high school youth. Spirituality was found to predict later violence perpetration and drug use as a single predictor. However, it failed to predict violence or drug use in models that also entered 6 other variables; particularly, baseline levels of violence and drug use, and morality of drug use. It is possible that current measures of spirituality predict later violence perpetration and drug use as a result of tapping attitudes about morality. Controlling for baseline spirituality, male gender, low morality of drug use, violence perpetration, and drug use predicted later spirituality. Spirituality appears to be affected by drug use and violence, but not the converse. The protective influence of spirituality is not supported, at least as currently measured.  相似文献   
106.
A most sensitive and specific electrophysiological indicator of selective processing of visual stimuli is the N2pc component. N2pc is a negative EEG potential peaking 250 ms after stimulus onset, recorded from posterior sites contralateral to relevant stimuli. Additional deflections preceding or following N2pc have been obtained in previous studies, possibly produced by specific stimulus features or specific prime-target sequences. To clarify the entire time-course of the contralateral- ipsilateral (C-I) difference recorded from the scalp above visual cortex in response to left-right pairs of targets and distracters, C-I differences were here compared between two types of stimuli and between stimuli that were or were not preceded by masked neutral primes. The C-I difference waveform consisted of several peaks, termed here P1pc (60-100 ms after target onset), N1pc (120-160 ms), N2pc (220-280 ms), and N3pc (360-400 ms). Being markedly enhanced when stimuli were preceded by the neutral primes, P1pc may indicate a response to stimulus change. Also, when stimuli were primed, N2pc reached its peak earlier, thereby tending to merge with N1pc. N3pc seemed to increase when target discrimination was difficult. N1pc, N2pc, and N3pc appear as three periods of one process. N3pc probably corresponds to L400 or SPCN as described in other studies. These observations suggest that the neurophysiological basis of stimulus-driven focusing of attention on target stimuli is a process that lasts for hundreds of milliseconds, with the relevant hemisphere being activated in an oscillating manner as long as required by the task.  相似文献   
107.
Theoretical perspectives and research in sociology, anthropology, sociolinguistics, and cultural psychology converge in recognizing the significance of children's time spent in various activities, especially in the family context. Knowing how children's time is deployed, however, only gives us a partial answer to how children acquire competence; the other part must take into account the culturally constructed meanings of activities, from the perspective of those who organize and direct children's daily lives. In this article, we report on a study of children's routine daily activities and on the meanings that parents attribute to them in six Western middle-class cultural communities located in Italy, The Netherlands, Poland, Spain, Sweden, and the United States (N = 183). Using week-long time diaries kept by parents, we first demonstrate similarities as well as significant differences in children's daily routines across the cultural samples. We then present brief vignettes--"a day in the life" --of children from each sample. Parent interviews were coded for themes in the meanings attributed to various activities. Excerpts from parent interviews, focusing on four major activities (meals, family time, play, school- or developmentally related activities), are presented to illustrate how cultural meanings and themes are woven into parents' organization and understanding of their children's daily lives. The results of this mixed-method approach provide a more reliable and nuanced picture of children's and families' daily lives than could be derived from either method alone.  相似文献   
108.
This study presents a meta‐analysis of 25 individual differences proposed to be related to effective leadership, with an emphasis on comparing trait‐like (e.g. personality and intelligence) to state‐like individual differences (e.g. knowledge and skills). The results indicate that although both trait‐like (achievement motivation, energy, dominance, honesty/integrity, self‐confidence, creativity, and charisma) and state‐like (interpersonal skills, oral communication, written communication, administrative/management skills, problem‐solving skills, and decision making) individual differences were consistent predictors of effective leadership, the impact of trait‐like and state‐like individual differences was modest overall and did not differ substantially (ρ= .27 and .26, respectively). Finally, organizational level of the leader, method of predictor and criterion measurement, and organization type moderated the relationship between individual differences and effective leadership.  相似文献   
109.
A digital pursuit rotor was used to monitor speech planning and production costs by time-locking tracking performance to the auditory wave form produced as young and older adults were describing someone they admire. The speech sample and time-locked tracking record were segmented at utterance boundaries and multilevel modeling was used to determine how utterance-level predictors such as utterance duration or sentence grammatical complexity and person-level predictors such as speaker age or working memory capacity predicted tracking performance. Three models evaluated the costs of speech planning, the costs of speech production, and the costs of speech output monitoring. The results suggest that planning and producing propositionally dense utterances is more costly for older adults and that older adults experience increased costs as a result of having produced a long, informative, or rapid utterance.  相似文献   
110.
The ability to localize sound sources in three-dimensional space was tested in humans. In Experiment 1, naive subjects listened to noises filtered with subject-specific head-related transfer functions. The tested conditions included the pointing method (head or manual pointing) and the visual environment (VE; darkness or virtual VE). The localization performance was not significantly different between the pointing methods. The virtual VE significantly improved the horizontal precision and reduced the number of front-back confusions. These results show the benefit of using a virtual VE in sound localization tasks. In Experiment 2, subjects were provided with sound localization training. Over the course of training, the performance improved for all subjects, with the largest improvements occurring during the first 400 trials. The improvements beyond the first 400 trials were smaller. After the training, there was still no significant effect of pointing method, showing that the choice of either head- or manual-pointing method plays a minor role in sound localization performance. The results of Experiment 2 reinforce the importance of perceptual training for at least 400 trials in sound localization studies.  相似文献   
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