我观故我在？— 从橡胶手错觉对自我身体所有权的探讨

橡胶手错觉是一种能将非自我的肢体感知为自我的肢体的反应。继发现橡胶手错觉现象后,研究者通过操纵自变量以及观测不同的因变量,得到了大量新的研究结果。橡胶手错觉的出现与强度受到时间、空间和手姿势的影响。橡胶手错觉的产生机制为单纯的多感觉整合或多感觉整合与身体表征共同作用的结果。未来研究侧重于被试取样、研究策略以及医学领域中瘫痪患者的认知神经康复和截肢病人的假肢控制方面。     

Temporal integration of face view sequences and recognition of novel views

When faces are learned from rotating view sequences, novel views may be recognized by matching them with an integrated representation of the sequence or with individual views. An integrated-representation process should benefit from short view durations, and thus from the inclusion of views in a short temporal window, allowing the distribution of attention over the entire sequence. A view-matching process should benefit from long view durations, allowing the attention to focus on each view. In a sequential comparison task, we tested the recognition of learned and novel interpolated and extrapolated views after learning faces from rapid and slow sequences (240 ms or 960 ms for each view). We found a superiority of rapid over slow sequences, in favour of the integrated-representation hypothesis. In addition, the recognition pattern for the different viewpoints in the sequence depended on the absence or presence of extrapolated views, showing a bias of the distribution of attention.     

Valence and vertical space: Saccade trajectory deviations reveal metaphorical spatial activation

Concepts of positive and negative valence are metaphorically structured in space (e.g., happy is up, sad is down). In fact, coupling a conceptual task (e.g., evaluating words as positive or negative) with a visuospatial task (e.g., identifying stimuli above or below fixation) often gives rise to metaphorical congruency effects. For instance, after reading a positive concept, visual target processing is facilitated above fixation. However, it is possible that tasks requiring upwards and downwards attentional orienting artificially strengthen the link between vertical space and semantic valence. For this reason, in the present study the vertical axis was uncoupled from the response axis. Participants made eye movements along the horizontal axis after reading positive or negative affect words, while their saccade movement trajectories were recorded. Based on previous research on saccade trajectory deviation, we predicted that fast saccade trajectories curve towards the salient segment of space, whereas slow saccade trajectories would curve away from the salient segment. Examining saccadic trajectories revealed a pattern of deviations along the vertical axis consistent with the metaphorical congruency account, although this pattern was mainly driven by positive concepts. These results suggest that semantic processing of valence can automatically recruit spatial features along the vertical axis.     

A response binding effect in visual short-term memory

The current study aimed to investigate the effect of action on the preservation of stored feature bindings. Prior research suggests that stimuli presented after a memory array can disrupt the feature bindings of memory array items. Here, we conducted three experiments to examine whether response to targets disrupts feature bindings. Two of four letters (A, B, C, D) were presented in a memory array, and were followed by a second array containing a single target letter. After either identifying or localizing the target letter, participants were required to report the identity or location of the memory array items. There was a deficit in memory performance involving spatial repetition when participants were required to localize targets, and involving identity repetition when participants were required to identify targets. We conclude that response codes are fundamentally linked to stimulus representations, and can affect retrieval from visual working memory.     

Identification of fragmented object outlines: A dynamic interplay between different component processes

The speed of fragmented picture identification depends on a large number of factors whose effects might change in time during an identification attempt. Using survival analysis and fixed fragmentation levels, previous research has shown that effects of complexity, fragment curvature, and time interact. Here, we study the effects of presentation duration and dynamic fragmentation levels. Fragmented object outlines were presented repetitively every 2.25 s, and at each presentation longer fragments were shown (possibly until closure). We recorded the lowest presentation number (minimum 1, maximum 10) that resulted in correct naming by the participants (N=84). Survival analysis was employed to investigate whether and when different factors like presentation duration, complexity, object category (natural vs. artifactual), symmetry, proximity, and fragment curvature influence correct identification. The results confirm and extend previous findings, and are interpreted within a dynamic, interactive processing framework.     

What is the European Union? Religion between Neofunctionalism and Intergovernmentalism

This paper examines the ways in which religion has played a part in the process of European integration. By exploring the position of religious communities towards the European Community since the 1950s until today, it argues that the place of religion has been influenced by the theoretical debates on European integration, namely neofunctionalism and intergovernmentalism. It suggests that, since 1992, the European Union has adopted a neofunctionalist approach towards religious communities, in contrast with the dominant intergovernmentalist integration process between EU member-states. The analysis of religion in relation to this theoretical dispute raises questions about the nature of the European Union and the adaptation of religious communities to supranational institutions.     

叙事循证医学与癌症治疗

循证医学在临床中的推广应用虽已取得了一些成绩,但其仅关注于疾病诊疗的技术层面的局限性也逐渐突显。叙事医学是近年来新发展起来的,在心理和社会层面给予患者更多人文关怀的新医学模式。叙事循证医学是叙事医学和循证医学两种理念和方法的相互渗透与有机融合,是有别于前两者的一体化了的新体系。叙事循证医学的实践需要遵循“叙事的循证化和循证的叙事化”两个原则。在此原则指导下的癌症治疗旨在针对癌症患者的“病痛”,利用多学科团队、新诊疗途径和疗愈判定指数,使患者在生理、心理、社会诸多层面均得到疗愈。     

医疗改革与医学整合

医疗改革是以解决现阶段医学相关社会矛盾为重点的重大改革。而医学整合则是以促进保健服务公平与医学人文精神落实为目的的医学革命与创新。医学整合可以为医疗改革的深化提供理论导向和支撑,而医疗改革则可以促进医学整合的进程。     

Specific and nonspecific thalamocortical functional connectivity in normal and vegetative states

Recent theoretical advances describing consciousness from information and integration have highlighted the unique role of the thalamocortical system in leading to integrated information and thus, consciousness. Here, we examined the differential distributions of specific and nonspecific thalamocortical functional connections using resting-state fMRI in a group of healthy subjects and vegetative-state patients. We found that both thalamic systems were widely distributed, but they exhibited different patterns. Nonspecific connections were preferentially associated with brain regions involved in higher-order cognitive processing, self-awareness and introspective mentalizing (e.g., the dorsal prefrontal and anterior cingulate cortices). In contrast, specific connections were prevalent in the ventral and posterior part of the prefrontal and precuneus, known involved in representing externally-directed attentions. Significant reductions of functional connectivity in both systems, especially the nonspecific system, were observed in VS. These data suggest that brain networks sustaining information and integration may be differentiated by the nature of their thalamic functional connectivity.     

What is behavior? And so what?

This article addresses a longstanding problem in the field of psychology, that of lacking an adequate explication of what is arguably our central concept as a “science of behavior,” the concept of “behavior” itself. The three sections comprising the paper are devoted, respectively, to (a) presenting a conceptual formulation of behavior; (b) discussing this formulation by, among other things, addressing objections to it and noting its advantages over psychology’s currently preferred definition of behavior as observable activity; and (c) relating why having such a formulation is important. The final section includes several uses to which the present formulation has already been and can in future be put, including a sketch of how it may be used to integrate the various subfields of our currently fragmented science of behavior.