外显自尊脑机制研究实验材料的筛选

本研究试图检测出与自尊相关的自我评价,以此作为外显自尊脑机制研究的指标,因此对实验材料进行筛选.以积极触及自尊符合词、消极触及自尊不符合词、非自尊符合词和非自尊不符合词作为实验材料,采用"人物对象--人格形容词"评价范式,让180名在校大学生用这四类词语对"自我"和"他人"进行评价.得到以下结果:(1)与自尊相关的自我评价体现为个体用积极或者消极触及自尊词进行的自我评价;(2)个体对正性他人的评价可以作为一个参照指标,由于个体对负性他人评价的一致性较低,因此在脑机制研究中的"人物对象"不包括负性他人.     

暴力电脑游戏对个体攻击性的影响

以75名大学生为被试,采用3×2×2被试间设计,探讨电脑游戏暴力对个体的攻击性行为、攻击性情绪和攻击性认知的影响。结果表明:(1)暴力电脑游戏导致个体的攻击性行为增加。游戏与性别和攻击性特质的两重和三重交互作用不显著;(2)暴力电脑游戏对个体的攻击性情绪无显著影响;(3)暴力电脑游戏启动了攻击性认知。游戏、性别和攻击特质这三个变量在攻击性认知上交互作用显著,对于男性,暴力电脑游戏在高攻击性个体身上比低攻击性个体启动了更多的攻击性认知;对于女性,暴力电脑游戏对高低攻击性个体攻击性认知的启动没有显著差异。     

腹腔镜在盆腔炎中的应用

急性盆腔炎发病率高,并发症多.是常见妇科急腹症之一,而早期明确诊断和及时处理是治疗成功的关键.本文初步探讨了腹腔镜作为一种检查和治疗的手段在急性盆腔炎的应用价值,结果提示其具有较好的临床应用价值.     

Sequential congruency effects in implicit sequence learning

We deal with situations incongruent with our automatic response tendencies much better right after having done so on a previous trial than after having reacted to a congruent trial. The nature of the mechanisms responsible for these sequential congruency effects is currently a hot topic of debate. According to the conflict monitoring model these effects depend on the adjustment of control triggered by the detection of conflict on the preceding situation. We tested whether these conflict monitoring processes can operate implicitly in an implicit learning procedure, modulating the expression of knowledge of which participants are not aware. We reanalyze recently published data, and present an experiment with a probabilistic sequence learning procedure, both showing consistent effects of implicit sequence learning. Despite being implicit, the expression of learning was reduced or completely eliminated right after trials incongruent with the learned sequence, thus showing that sequential congruency effects can be obtained even when the source of congruency itself remains implicit.     

Spanish developmental dyslexia: Prevalence, cognitive profile, and home literacy experiences

This study was designed to examine the prevalence, cognitive profile, and home literacy experiences in subtypes of Spanish developmental dyslexia. The subtyping procedure used comparison with chronological-age-matched and reading-level controls on reaction times and accuracy responses to high-frequency words and pseudowords. Using regression-based procedures, 8 phonological dyslexics and 16 surface dyslexics were identified from a sample of 35 dyslexic fourth graders by comparing them with chronological-age-matched controls on reaction times to high-frequency word and pseudoword reading. However, when the dyslexic subtypes were defined by reference to reading-level controls, 12 phonological dyslexics were defined but only 5 surface dyslexics were identified. Both dyslexic subtypes showed a deficit in phonological awareness, but children with surface dyslexia also showed a deficit in orthographical processing assessed by a homophone comprehension task. This deficit was associated with poor home literacy experiences, with the group of parents with children matched in reading age, in comparison with the group of parents with children with surface dyslexia, reporting more literacy home experiences.     

Followers’ satisfaction from working with group-prototypic leaders: Promotion focus as moderator

What is the effect of followers’ promotion focus on their satisfaction from working with a leader who is prototypic of their group? We propose that high (vs. low) promotion-focused followers will respond more positively to a group-prototypic leader as a way to advance the in-group (“promote us”), which would increase their satisfaction from working with that leader. Results from an organizational survey and a scenario experiment supported the predicted two-way interaction between promotion focus and leaders’ group prototypicality: the positive relation between leaders’ group prototypicality and followers’ satisfaction from working with their leader was significantly greater for high than low promotion-focused employees. No such interactive effect was found for employees’ level of prevention focus. We discuss how these findings extend social identity theory’s analysis of leadership.     

Foucault and Derrida: The Question of Empowering and Disempowering the Author

This article focuses on Michel Foucault’s concepts of authorship and power. Jacques Derrida has often been accused of being more of a literary author than a philosopher or political theorist. Richard Rorty complains that Derrida’s views on politics are not pragmatic enough; he sees Derrida’s later work, including his political work, more as a “private self-fashioning” than concrete political thinking aimed at devising short-term solutions to problems here and now. Employing Foucault’s work around authorship and the origins of power, I show that Derrida is indeed fashioning himself. This self-fashioning is not merely private or fanciful. Rather, I argue that Derrida can be read as employing what Foucault would call “technologies of the self” to not only show the play of possibility and impossibility at work in all politics and thought, but also to use his savoir to create two important and potentially constructive power structures. First, there is the power of deconstruction itself as a “militant critique” that calls for a forceful and irreducible justice. Second, there is the power of Derrida himself, understood as leaving behind a legacy of himself as the “originator” of deconstruction and as a public intellectual.

The power of causal beliefs and conflicting evidence on causal judgments and decision making

In two experiments, we investigated the relative impact of causal beliefs and empirical evidence on both decision making and causal judgments, and whether this relative impact could be altered by previous experience. Participants had to decide which of two alternatives would attain a higher outcome on the basis of four cues. After completing the decision task, they were asked to estimate to what extent each cue was a reliable cause of the outcome. Participants were provided with instructions that causally related two of the cues to the outcome, whereas they received neutral information about the other two cues. Two of the four cues—a causal and a neutral cue—had high validity and were both generative. The remaining two cues had low validity, and were generative in Experiment 1, but almost not related to the outcome in Experiment 2. Selected groups of participants in both experiments received pre-training with either causal or neutral cues, or no pre-training was provided. Results revealed that the impact of causal beliefs and empirical evidence depends on both the experienced pre-training and cue validity. When all cues were generative and participants received pre-training with causal cues, they mostly relied on their causal beliefs, whereas they relied on empirical evidence when they received pre-training with neutral cues. In contrast, when some of the cues were almost not related to the outcome, participants’ responses were primarily influenced by validity and—to a lesser extent—by causal beliefs. In either case, however, the influence of causal beliefs was higher in causal judgments than in decision making. While current theoretical approaches in causal learning focus either on the effect of causal beliefs or empirical evidence, the present research shows that both factors are required to explain the flexibility involved in human inferences.     

Pentylenetetrazole as an unconditioned stimulus for olfactory and contextual fear conditioning in rats

The association of five footshocks with a neutral odor is able to establish an olfactory fear conditioning in rats. The present study sought to investigate whether the systemic administration of pentylenetetrazole (PTZ; 3.75–15 mg/kg) would turn the coffee odor in a conditioned stimulus in the fear conditioning paradigm. The results showed that rats started to display risk assessment and avoidance after PTZ (15 mg/kg)–coffee odor pairing. When three mild footshocks (0.4 mA for 2 s) were delivered during this pairing, the conditioned response exhibited was greater than before. In both cases, however, pretreatment with the benzodiazepine midazolam (MDZ. 0.5 mg/kg i.p.) fully counteracted the expression of these defensive behaviors. Moreover, after being paired with 15 mg/kg of PTZ alone or combined with footshocks, the coffee odor was able to promote a new fear conditioning related to the context where it was re-exposed. The present findings point out the usefulness of PTZ as an unconditioned stimulus to promote fear conditioning to olfactory and contextual cues in rats.