Invisible displacement understanding in domestic dogs (<Emphasis Type="Italic">Canis familiaris</Emphasis>): the role of visual cues in search behavior

Recently, (Collier-Baker E, Davis JM, Suddendorf T (2004) J Comp Psychol 118:421–433) suggested that domestic dogs do not understand invisible displacements. In the present study, we further investigated the hypothesis that the search behavior of domestic dogs in invisible displacements is guided by various visual cues inherent to the task rather than by mental representation of an object’s past trajectory. Specifically, we examined the role of the experimenter as a function of the final position of the displacement device in the search behavior of domestic dogs. Visible and invisible displacement problems were administered to dogs (N = 11) under two conditions. In the Visible-experimenter condition, the experimenter was visible whereas in the Concealed-experimenter condition, the experimenter was visibly occluded behind a large rigid barrier. Our data supported the conclusion that dogs do not understand invisible displacements but primarily search as a function of the final position of the displacement device and, to a lesser extent, the position of the experimenter.     

Preferential theory revision

Employing a logic program approach, this paper focuses on applying preferential reasoning to theory revision, both by means of preferences among existing theory rules, and by means of preferences on the possible abductive extensions to the theory. And, in particular, how to prefer among plausible abductive explanations justifying observations.     

大学生的国家科技成就刻板印象

利用信号检测论的方法对130名大学生的国家科技成就刻板印象进行研究。结果发现,被试对中国近现代及当代科技成就判断标准的自然对数值显著高于对中国古代、美国近现代及当代科技成就判断标准的自然对数值(p<0.001),同时,被试对中国古代、美国近现代及当代科技成就的判断标准自然对数值没有显著差异(p>0.05),从而证明了大学生群体中明显存在着国家科技成就刻板印象。进一步的含义表明,大学生对中国古代科技成就依然保持绝对的自信,对中国近现代及当代科技成就的自卑并没有显著改变。在被试对2005年中国科技竞争力在全球的排名进行估计时,高估的人数显著多于低估的人数(p<0.001),从而表明,大学生对中国当前及未来科技成就的自信心开始建立。     

Actors and actions: The role of agent behavior in infants' attribution of goals

Twelve-month-old infants attribute goals to both familiar, human agents and unfamiliar, non-human agents. They also attribute goal-directedness to both familiar actions and unfamiliar ones. Four conditions examined information 12-month-olds use to determine which actions of an unfamiliar agent are goal-directed. Infants who witnessed the agent interact contingently with a human confederate encoded the agent's actions as goal-directed; infants who saw a human confederate model an intentional stance toward the agent without the agent's participation, did not. Infants who witnessed the agent align itself with one of two potential targets before approaching that target encoded the approach as goal-directed; infants who did not observe the self-alignment did not encode the approach as goal-directed. A possible common underpinning of these two seemingly independent sources of information is discussed.     

Plausible assumptions, questionable assumptions and post hoc rationalizations: Will the real IAT, please stand up?

In a recent article, we described psychometric limitations to the Implicit Association Test (IAT). These limitations restrict the utility of this measure and render it problematic for testing many psychological theories that posit a causal role for implicit attitudes. Past failures to recognize this may have promoted faulty conclusions in the literature. In a critique of our article, Nosek and Sriram rejected our entire analysis. They asserted that our original article was based on faulty assumptions and argued that the IAT performs nicely when these assumptions are replaced by other, more plausible assumptions. We show that these plausible assumptions have all the hallmarks of post hoc rationalizations. They make little theoretical sense, are buttressed by deceptive statistical practices, contradict statements these same researchers have made in the past and do little to advance research and theory on implicit attitudes. We close by considering the vigor with which IAT researchers have dismissed meaningful criticisms of their measure.     

Will any doll do? 12-month-olds' reasoning about goal objects

Infants as young as 5 months of age view familiar actions such as reaching as goal-directed (Woodward, 1998), but how do they construe the goal of an actor's reach? Six experiments investigated whether 12-month-old infants represent reaching actions as directed to a particular individual object, to a narrowly defined object category (e.g., an orange dump truck), or to a more broadly defined object category (e.g., any truck, vehicle, artifact, or inanimate object). The experiments provide evidence that infants are predisposed to represent reaching actions as directed to categories of objects at least as broad as the basic level, both when the objects represent artifacts (trucks) and when they represent people (dolls). Infants do not use either narrower category information or spatiotemporal information to specify goal objects. Because spatiotemporal information is central to infants' representations of inanimate object motions and interactions, the findings are discussed in relation to the development of object knowledge and action representations.     

Introducing the Concepts of “Positions,” “Space,” and “Worlds”: Seeing Human Being and Becoming—and Religion—in New Ways

Theories of psychological development, however diverse, often express common underlying ontological-epistemological commitments shaped by the legacies of Descartes, Newton, and Kant. Three related psychoanalytic concepts—“positions,” “space,” and “worlds”—individually and collectively sketch the contours of a different way of construing human being and becoming—a way that departs from these legacies. Implications for the study of religion of this “different way” are examined.     

保护动机对农村流动人口性病艾滋病高危性行为的预测

农村流动人口已经成为我国性病艾滋病预防干预的重点人群。为了探讨流动人口所存在的性病艾滋病高危性行为,以及保护动机（Protection Motivation）对性病艾滋病高危性行为的预测作用,研究选取2201名从农村到北京打工已有3个月的流动人口为被试,采用问卷调查的形式,要求其报自己报告初始性行为发生的时间、性伙伴的数量、商业性行为、性伙伴的性行为、安全套的使用,对我国性病艾滋病严重程度的评估,以及所拥有的性病艾滋病症状知识和传播知识。对904名已发生性行为的流动人口的统计分析发现：（1）农村流动人口存在较多的高危性行为,男性流动人口的高危性行为明显多于女性流动人口;（2）保护动机理论对农村流动人口的性病艾滋病高危性行为具有明显的预测作用,其中的外在奖励、内在奖励、反应效能和反应代价与农村流动人口的性病艾滋病高危性行为的关系更为密切。研究揭示,保护动机理论可以作为我国今后开展农村流动人口性病艾滋病高危性行为预防干预工作的一个基础     

促进工作动机的有效路径:自我决定理论的观点

自我决定理论是关于人类行为的动机理论。本文通过分析阐述了自我决定理论的哲学基础,从有机辩证的视角梳理了自我决定理论的基本思想,并对组织背景中以自我决定理论为指导框架的工作动机研究进行了综述,结论认为满足胜任、关系和自主三种心理需要的组织环境因素是增加内部动机并促进外部动机的内化,进而促进员工的工作绩效与心理健康的有效路径。