Means-end coherence,stringency, and subjective reasons

Intentions matter. They have some kind of normative impact on our agency. Something goes wrong when an agent intends some end and fails to carry out the means she believes to be necessary for it, and something goes right when, intending the end, she adopts the means she thinks are required. This has even been claimed to be one of the only uncontroversial truths in ethical theory. But not only is there widespread disagreement about why this is so, there is widespread disagreement about in what sense it is so. In this paper I explore an underdeveloped answer to the question of in what sense it is so, and argue that resolving an apparent difficulty with this view leads to an attractive picture about why it is so.

文本阅读中协调性整合的条件

采用移动窗口阅读技术深入探讨文本阅读中协调性整合发生的条件。被试为华南师范大学一年级本科生。实验自变量是主人公特征与其目标句行为的关系,在实验一中有三个水平,一致、协调一致和恢复一致;在实验二中有两个水平,协调一致和恢复一致。实验一采用ANOVA对三种条件下目标句的阅读时间进行统计分析,结果表明,当前信息必须与先前的协调性信息有局部的不一致或不吻合是引发协调性整合的充分必要条件;实验二采用t检验分别对出现于不同位置的两个目标句的阅读时间进行统计分析,结果表明,协调性整合的结果不仅维持了文本的连贯,而且将相关的信息建构成整体的信息块,文本阅读过程是一个包含流畅性阅读和以协调性整合为重要形式之一的整合性阅读的双加工过程。     

深圳与北京中学生价值观特点比较研究

采用中国人价值取向问卷对507名深圳和北京的中学生进行测查。结果表明:深圳归侨生与非归侨生在“法律规范取向”上差异显著。深圳男女中学生在“金钱权力取向”、“爱情取向”和“家庭取向”上两者存在显著差异。在“正义公理取向”维度上,深圳中学生和北京中学生差异显著,在“从众取向”、“家庭取向”和“公共利益取向”上,两者差异非常显著。     

刺激结构对视觉定位的影响

本实验采用多点定位作业,结合部分报告法,研究视觉刺激的整体结构对定位成绩的影响。所呈现的刺激为1、2、3或4个颜色点。其中2、3、4点刺激分别是直线、正三角形和正方形。结果发现,当呈现时间较长时,1点和2、3、4点的定位误差无显著差异。但是1点的定位反应时却显著少于2、3、4点。这提示出现视觉定位的结构效应。而当呈现时间较短时,却没有这种结构效应。实验还发现,这种结构效应并不因刺激结构的不同而有区别。     

记叙文中因果连贯对空间情境模型回溯建构的促进

采用移动窗口阅读技术探讨记叙文理解中因果关系对于空间信息加工的作用。实验1和2的自变量是故事中空间信息与故事结果的因果关系,采用相关样本t检验对不同条件下探测词的反应时进行统计分析,结果表明因果关系不仅会影响文本明确提及的空间信息的加工而且能够促进隐含的空间关系建构情境模型。实验3的自变量是故事中物体与位置词的空间关系,采用相关样本t检验对不同条件下位置探测词的反应时进行统计分析,结果进一步表明空间情境模型是读者为保持故事因果连贯回溯建构的而不是在阅读进程中的实时建构。实验4中空间关系的复杂程度增大,结果发现当故事中空间信息的文本距离较远时即使有保持因果连贯的需要,读者仍无法回溯建构空间模型。     

Decrease of prefrontal-posterior EEG coherence: loose control during social-emotional stimulation

In two experiments we aimed to investigate if individual differences in state-dependent decreases or increases of EEG coherence between prefrontal and posterior cortical regions may be indicative of a mechanism modulating the impact social-emotional information has on an individual. Two independent samples were exposed to an emotional stimulation paradigm in which the participants were invited to get involved and sympathize with the persons they were watching (study 1) or listening to (study 2), and who were expressing sadness or anxiety. The two studies yielded consistent results. Higher scores in trait absorption and in the propensity to ruminate were associated with decreased EEG beta coherence during the stimulation, whereas coherence increased in individuals low in absorption or rumination. Coherence changes did not predict to which degree the participants felt infected by the displayed emotions, but in individuals showing decreased prefrontal-posterior coupling during the stimulation, feelings of sadness and anxiety had a greater tendency to persist. The findings suggest that more loose prefrontal-posterior coupling may be related to loosening of control of the prefrontal cortex over incoming social-emotional information and, consequently, to deeper emotional involvement and absorption, whereas increased prefrontal-posterior coupling may be related to strong control, dampening of emotional experience, and not letting oneself become emotionally affected.     

From syntactical to textual strategies of argumentation

The paper focuses on tevelopmental relations between syntactical complexity, cohesion — especially conjuctional connection — and textual coherence in a sample of 150 argumentative texts written by school children (grades 4, 7, 10 and 12) and young adults (university students). In common sense and even in linguistics and psychology written text and especially written argument has been taken to be the prototype of syntactically complex, self-contained and explicit text over a long period of research on the topic. Thus it has been argued that syntactic connectedness and explicit cohesion of propositions were the most valuable indicators for a well-done contextualization and abstraction of content space and rhetorical space in writing. Empirical data show this common-sense position to be questionable. The discussion emphazises the role of argumentative implicitness as a necessary condition for getting the reader involved in the discourse and thus for the emergence of coherence in argumentative texts.     

Reward feedback processing in children and adolescents: Medial frontal theta oscillations

We examined event-related electroencephalography (EEG) oscillations, including event-related spectral perturbations (ERSP) and intertrial coherence (ITC), to compare feedback processing during a chance-based reward vs. non-reward task in groups of 10–12-year-old (n = 42), 13–14-year-old (n = 34) and 15–17-year-olds (n = 32). Because few, if any studies have applied these analytic methods to examine feedback processing in children or adolescents, we used a fine-grained approach that explored one half hertz by 16 ms increments during feedback (no win vs. win events) in the theta (4–8 Hz) frequency band. Complex wavelet frequency decomposition revealed that no win feedback was associated with enhanced theta power and phase coherence. We observed condition and age-based differences for both ERSP and ITC, with stronger effects for ITC. The transition from childhood to early adolescence (13–14 yrs.) was a point of increased differentiation of ITC favoring no win vs. wins feedback and also compared to children or older adolescents, a point of heightened ITC for no win feedback (quadratic effect).     

Local Food Environments: They’re All Stocked Differently

The obesity epidemic has widened the aims of prevention research to include the influence of local food environments on health outcomes. This mixed methods study extends existing research focused on local food environments by examining whether community members’ find food accessible. Data from food store audits and one-on-one interviews were analyzed. Results reveal that most of the food stores surrounding the three research sites were convenience stores and non-chain grocery stores; interviewees did not perceive these stores to be “real” food stores. Tobacco and alcohol products were more prevalent in the food stores than all varieties of milk, fresh fruits, or fresh vegetables. Food access varied by site in a manner that was designed to appeal to customers’ race, class, gender, or environment. Findings reveal that local food environments are reflections of social hierarchies. Unraveling the politics of space ought to be a part of broader efforts to promote the public’s health.