The effects of preexposure-test and conditioning-test intervals on the magnitude of latent inhibition

Using the conditioned taste aversion paradigm, two experiments were conducted to examine the effects of the interval between preexposure and test and that between conditioning and test on the magnitude of latent inhibition. Experiment 1 revealed that the degree of latent inhibition was attenuated when rats were given a 21‐day interval between preexposure and test. It was also found that this attenuation was more marked in subjects which were given conditioning immediately after preexposure than those which were conditioned shortly before the test. Retention interval between preexposure and test was reduced to 12 days in Experiment 2, and exactly the same pattern of results as those found in Experiment 1 was obtained. These findings suggest that the memory of conditioning as well as that of preexposure decreases its retrievability after a long retention interval, although the former is more retainable than the latter.     

Source Monitoring: ERP Evidence for Greater Reactivity to Nontarget Information in Older Adults

Event-Related Potentials (ERPs) were collected concurrently with stimulus presentation during a source monitoring task. Younger adults were less likely than older adults to make source monitoring errors and their ERP records showed far greater discrimination between target stimuli and familiar but nontarget foils. Older adults not only made more source errors but produced high amplitude late positivities to the nontarget foils even when these foils were correctly rejected. Under divided attention conditions, younger adults performance was similar to that of the older adults both behaviorally and electrophysiologically. These data illustrate the role that attentional resources play in the ability to inhibit response tendencies and suggest that age differences in source monitoring may be more related to attentional control than inefficiencies in the encoding of contextual information. As well, they suggest that the ERP late positivity may represent a more general response to item salience rather than serve as an index of recollection as is the current view.     

Self-deception as affective coping. An empirical perspective on philosophical issues

In the philosophical literature, self-deception is mainly approached through the analysis of paradoxes. Yet, it is agreed that self-deception is motivated by protection from distress. In this paper, we argue, with the help of findings from cognitive neuroscience and psychology, that self-deception is a type of affective coping.First, we criticize the main solutions to the paradoxes of self-deception. We then present a new approach to self-deception. Self-deception, we argue, involves three appraisals of the distressing evidence: (a) appraisal of the strength of evidence as uncertain, (b) low coping potential and (c) negative anticipation along the lines of Damasio’s somatic marker hypothesis. At the same time, desire impacts the treatment of flattering evidence via dopamine. Our main proposal is that self-deception involves emotional mechanisms provoking a preference for immediate reward despite possible long-term negative repercussions. In the last part, we use this emotional model to revisit the philosophical paradoxes.     

Eighteenth-century French materialism clockwise and anticlockwise

ABSTRACT

Because of their reliance on mechanistic metaphors and analogies referring to machines, the eighteenth-century materialists La Mettrie and Diderot have sometimes been described as ‘mechanistic materialists’. However, if one pays close attention to the ways in which mechanical analogies and metaphors were used in eighteenth-century French materialism, one sees that the recourse to these metaphors and comparisons in no way implies mechanism in the sense of physicalist reductionism. Instead, early instances of these comparisons appear in arguments pointing out that technological artefacts have functional properties which are not reducible to their physical properties. When La Mettrie compares man to a machine in his L'homme machine, he insists at the same time on the fact that, just like a machine, man is a cultural artefact. According to La Mettrie, man's very existence depends on language and culture, and it is precisely this dependence on culture which distinguishes him from other animals. However, La Mettrie's sceptical stance renders his position towards physicalistic reductionism ambiguous. Diderot, who by contrast was interested in the distinction between the living and non-living, distances himself from the ambiguous use of mechanistic metaphors and insists on the irreducibility of physiological and biological phenomena to the physical.     

Varieties of early modern materialism

ABSTRACT

This paper discusses how early modern materialism can be defined and delineated, before turning to a brief survey of the main philosophical resources early modern materialist theories draw on. Subsequently, I discuss competing overall narratives concerning early modern materialism, and conclude with a defence of the controversial view that material soul theories belong to materialism proper.     

认知抑制与人际宽恕:特质宽恕的调节作用

采用《特质宽恕量表》测量了102名大学生的特质宽恕能力,并通过Flanker任务和情景回忆法评估了被试的认知抑制和人际宽恕水平,目的是探讨特质宽恕、认知抑制与人际宽恕三者之间的关系。结果发现:(1)认知抑制、特质宽恕与人际宽恕各维度之间存在两两显著相关(除认知抑制与仁慈动机之外);(2)特质宽恕对回避、报复和仁慈动机均具有预测作用,而认知抑制则只对报复动机具有预测作用;(3)特质宽恕与认知抑制对回避动机具有负向的调节作用,对仁慈动机具有正向的调节作用。     

Theology, Science, and Postmodernism: Responding to Stanley Grenz

This article responds to Stanley J. Grenz's Templeton Lecture, “Why Do Theologians Need to Be Scientists?” published in the June 2000 issue of Zygon (Grenz 2000). In the first part I outline my reasons for finding the kind of theological reflections in which Grenz engages worthy of attention by noting my disagreement with the view that a sufficient response to theological issues can be formulated on the basis of an examination of our biological nature. I assert, in that connection, the autonomy of reason as a way of investigating and understanding the world. In the second part I respond directly to Grenz by explaining my disagreement with the postmodern critique of science upon which he relies and his adherence to Christian eschatology as an answer to the conundrums into which, he posits, we are drawn as a result of that critique. I note that I agree with Grenz, however, that the activity of valuing is necessarily a forward‐looking Godlike endeavor that is not derivable from science. In the third part I suggest that we must be open to the investigation of the possible existence of an objective realm of value and that, in any case, rejection of the postmodern critique of science in many cases pro‐vides a sound basis for the disciplined resolution of factual questions that frequently lie at the base of disagreements about values.     

内隐记忆和内隐学习的整合研究趋向

内隐记忆和内隐学习代表了人类学习与记忆的无意识机制,它们打开了理解人类无意识奥妙的大门。从内隐记忆和内隐学习的诞生与实验室发展来看,二者似乎长期以来处在相对独立的位置。然而,随着研究的不断深入,走向整合已经成为不可抑制的趋向。该文旨在结合内隐记忆和内隐学习的定义、经验类似性、理论框架和实验研究等方面的证据,论述它们的整合必要以及已有的整合途径,促进研究对学习和记忆的无意识过程的全面把握     

疼痛恐惧对疼痛的影响及其认知机制

疼痛恐惧是把将要出现的疼痛刺激视为主要威胁而产生的一种恐惧,它会影响与疼痛相关的感知觉、注意、回避行为以及安慰剂止痛的效果.疼痛恐惧的认知模型主要有活动回避模型、恐惧-回避模型以及内感受性恐惧条件模型.未来的研究要进一步探究疼痛恐惧的认知机制,完善疼痛恐惧的认知模型并扩展疼痛恐惧的研究方法.