Rapid word learning under uncertainty via cross-situational statistics

There are an infinite number of possible word-to-word pairings in naturalistic learning environments. Previous proposals to solve this mapping problem have focused on linguistic, social, representational, and attentional constraints at a single moment. This article discusses a cross-situational learning strategy based on computing distributional statistics across words, across referents, and, most important, across the co-occurrences of words and referents at multiple moments. We briefly exposed adults to a set of trials that each contained multiple spoken words and multiple pictures of individual objects; no information about word-picture correspondences was given within a trial. Nonetheless, over trials, subjects learned the word-picture mappings through cross-trial statistical relations. Different learning conditions varied the degree of within-trial reference uncertainty, the number of trials, and the length of trials. Overall, the remarkable performance of learners in various learning conditions suggests that they calculate cross-trial statistics with sufficient fidelity and by doing so rapidly learn word-referent pairs even in highly ambiguous learning contexts.     

Moral outrage mediates the dampening effect of system justification on support for redistributive social policies

To understand how and why people tolerate ongoing social and economic inequality, we conducted two studies investigating the hypothesis that system justification is associated with reduced emotional distress and a lack of support for helping the disadvantaged. In Study 1, we found that the endorsement of a system-justifying ideology was negatively associated with moral outrage, existential guilt, and support for helping the disadvantaged. In Study 2, the induction of a system-justification mind-set through exposure to "rags-to-riches" narratives decreased moral outrage, negative affect, and therefore intentions to help the disadvantaged. In both studies, moral outrage (outward-focused distress) was found to mediate the dampening effect of system justification on support for redistribution, whereas existential guilt (Study 1) or negative affect in general (Study 2; inward-focused distress) did not. Thus, system-justifying ideology appears to undercut the redistribution of social and economic resources by alleviating moral outrage.     

召唤与职业:驳韦伯对基督教职业观的理解——从克尔恺郭尔的基督教思想出发

韦伯在《新教伦理与资本主义精神》中,将职业与天职联系起来,并从这一角度指出,新教伦理促进了资本主义精神的兴起。该文认为这种直接的联系的基础是自然神论。通过引入克尔恺郭尔对西方理性形而上学的批判,笔者将论证,一方面,由自然神论衍生的基督教职业观在克尔恺郭尔的视野下是错误的,因为职业只是一个人生存的偶然性境遇之一,因此不是上帝的“召唤”。根据克尔恺郭尔对基督教的阐释,上帝的召唤是超越性的,这决定了它不可能直接地被人的理性理解,它以一种独特的———我称之为“否定性的”、“间接的”———方式被领会,召唤超越于职业,前者超越了人的理性,而后者是理性分工体系的产物;另一方面,上帝的召唤又与职业有关系。偶然性境遇恰恰是上帝进行召唤以及人作出回应的“场合”(occassion),一个基督徒如果占据某一职业,那么他(她)就必须辛勤劳动,甘愿“受苦”(suffering),韦伯正确地看到了基督徒对职业的重视、在职业上吃苦耐劳的表现,但未能正确地解释其原因。总之,依据克尔恺郭尔的思想,存在着一种有别于韦伯的基督教职业观,从而将基督教与资本主义精神联系起来是值得疑问的。     

论人本主义刑事司法理念

司法制度中所有问题的解决归根结底都在于关注人,人本主义所蕴含的尊重人的尊严、价值的法律精神,可以引伸出刑事司法程序的主体性要求,并成为重塑我国刑事司法理念的理论基础。     

Dynamic action units slip in speech production errors

In the past, the nature of the compositional units proposed for spoken language has largely diverged from the types of control units pursued in the domains of other skilled motor tasks. A classic source of evidence as to the units structuring speech has been patterns observed in speech errors--"slips of the tongue". The present study reports, for the first time, on kinematic data from tongue and lip movements during speech errors elicited in the laboratory using a repetition task. Our data are consistent with the hypothesis that speech production results from the assembly of dynamically defined action units--gestures--in a linguistically structured environment. The experimental results support both the presence of gestural units and the dynamical properties of these units and their coordination. This study of speech articulation shows that it is possible to develop a principled account of spoken language within a more general theory of action.     

Subtyping adolescents with bulimia nervosa

Cluster analyses of eating disorder patients have yielded a "dietary-depressive" subtype, typified by greater negative affect, and a "dietary" subtype, typified by dietary restraint. This study aimed to replicate these findings in an adolescent sample with bulimia nervosa (BN) from a randomized controlled trial and to examine the validity and reliability of this methodology. In the sample of BN adolescents (N=80), cluster analysis revealed a "dietary-depressive" subtype (37.5%) and a "dietary" subtype (62.5%) using the Beck Depression Inventory, Rosenberg Self-Esteem Scale and Eating Disorder Examination Restraint subscale. The "dietary-depressive" subtype compared to the "dietary" subtype was significantly more likely to: (1) report co-occurring disorders, (2) greater eating and weight concerns, and (3) less vomiting abstinence at post-treatment (all p's<.05). The cluster analysis based on "dietary" and "dietary-depressive" subtypes appeared to have concurrent validity, yielding more distinct groups than subtyping by vomiting frequency. In order to assess the reliability of the subtyping scheme, a larger sample of adolescents with mixed eating and weight disorders in an outpatient eating disorder clinic (N=149) was subtyped, yielding similar subtypes. These results support the validity and reliability of the subtyping strategy in two adolescent samples.     

A multilevel study of leadership, empowerment, and performance in teams

A multilevel model of leadership, empowerment, and performance was tested using a sample of 62 teams, 445 individual members, 62 team leaders, and 31 external managers from 31 stores of a Fortune 500 company. Leader-member exchange and leadership climate related differently to individual and team empowerment and interacted to influence individual empowerment. Also, several relationships were supported in more but not in less interdependent teams. Specifically, leader-member exchange related to individual performance partially through individual empowerment; leadership climate related to team performance partially through team empowerment; team empowerment moderated the relationship between individual empowerment and performance; and individual performance was positively related to team performance. Contributions to team leadership theory, research, and practices are discussed.     

浅谈脂肪肝的降脂治疗

脂肪肝是一种常见病,多伴有高脂血症,大部分需要降血脂治疗.由于降血脂药物的不恰当使用,有时反而造成脂肪肝的加重以及肝功能的损害.因此,应在治疗原发病、控制饮食、增加运动3个月后,未达到满意效果的患者中,选择适当的降血脂药物进行治疗,并在治疗过程中监测肝功能变化.     

未成年患者的同意能力研究

众所周知,医疗机构必须在取得成年患者的有效同意后才能实施医疗行为。而当患者是未成年人时,这种对医疗行为的同意是否有效呢?对此,国内外法学均未形成统一的定论。通过比较国外医事法学领域相对成熟的同意能力理论,初步建立我国未成年患者的同意能力理论体系,其中评估方法是关键。