The global workspace theory,the phenomenal concept strategy,and the distribution of consciousness

Peter Carruthers argues that the global workspace theory implies there are no facts of the matter about animal consciousness. The argument is easily extended to other cognitive theories of consciousness, posing a general problem for consciousness studies. But the argument proves too much, for it also implies that there are no facts of the matter about human consciousness. A key assumption is that scientific theories of consciousness must explain away the explanatory gap. I criticize this assumption and point to an alternative strategy for defending scientific theories of consciousness, one that better reflects the ongoing scientific practice. I argue there are introspectable inferential connections from phenomenal concepts to functional concepts that scientists can use to individuate the global workspace in terms of capacities that animals and humans share.     

Simple Threshold Rules Solve Explore/Exploit Trade-offs in a Resource Accumulation Search Task

How, and how well, do people switch between exploration and exploitation to search for and accumulate resources? We study the decision processes underlying such exploration/exploitation trade-offs using a novel card selection task that captures the common situation of searching among multiple resources (e.g., jobs) that can be exploited without depleting. With experience, participants learn to switch appropriately between exploration and exploitation and approach optimal performance. We model participants' behavior on this task with random, threshold, and sampling strategies, and find that a linear decreasing threshold rule best fits participants' results. Further evidence that participants use decreasing threshold-based strategies comes from reaction time differences between exploration and exploitation; however, participants themselves report non-decreasing thresholds. Decreasing threshold strategies that “front-load” exploration and switch quickly to exploitation are particularly effective in resource accumulation tasks, in contrast to optimal stopping problems like the Secretary Problem requiring longer exploration.     

The development of children's rule use on the balance scale task

Cognitive development can be characterized by a sequence of increasingly complex rules or strategies for solving problems. Our work focuses on the development of children's proportional reasoning, assessed by the balance scale task using Siegler's (1976, 1981) rule assessment methodology. We studied whether children use rules, whether children of different ages use qualitatively different rules, and whether rules are used consistently. Nonverbal balance scale problems were administered to 805 participants between 5 and 19 years of age. Latent class analyses indicate that children use rules, that children of different ages use different rules, and that both consistent and inconsistent use of rules occurs. A model for the development of reasoning about the balance scale task is proposed. The model is a restricted form of the overlapping waves model (Siegler, 1996) and predicts both discontinuous and gradual transitions between rules.     

发掘情感策略的实验研究

将对内含隐性情感因素的教材内容实施情感性处理的一种策略——发掘情感策略运用于语文教学,进行现场的教学实验研究。研究结果表明：在内含隐性情感因素的文科教材内容中,可以运用发掘情感策略来对其进行情感性处理;这对促进学生的认知学习和情感发展、提高课堂教学质量是有效的。     

Effects of constrained choice on memory: The extension of the multiple-cue hypothesis to the self-choice effect

The self-choice effect is the phenomenon whereby self-chosen items are remembered better than experimenter-assigned items. This study examined whether the effect occurs when the choice is constrained by cuing, and whether the effect also occurs for unchosen items. In the experiment, 33 participants chose (choice condition) or were assigned (force condition) a target from three alternatives that were followed by a cue sentence as a criterion for the choice. Cue sentences corresponded to any of the three alternatives (free cuing) or to only one (constrained cuing). Participants then engaged in free recall of targets and subsequent recognition of all alternatives (chosen and unchosen items). Memory performance was enhanced by choice regardless of the constraints, but was also enhanced for unchosen items. These results indicate that "free choice" is not always critical for the self-choice effect, and that multiple cuing involving unchosen items is a plausible account for the retention advantage of choice procedures.     

从进化观点看应激对健康的影响

从进化的观点解释了不同生物体应对应激的不同行为策略及其生理基础,和由此引起的对不同应激性疾病易感性的差异。行为策略和生理基础的差异使得一定环境条件下引发的应激反应对不同个体产生了不同的非稳态获益和代价（非稳态负荷)。非稳态的获益和代价影响了健康和疾病间的平衡：攻击性个体由于非稳态调质失调,更可能出现冲动控制障碍、高血压、自身免疫性疾病、慢性疲劳状态等;反之,非攻击性个体由于非稳调质过度释放,更易发生焦虑障碍、抑郁症、代谢综合症等     

学习策略在思维风格与数学学业成就关系中的中介效应研究

以227名大学二年级理科生为被试,采用问卷调查法,探讨了学习策略在思维风格与数学学业成就关系中的作用。结果表明：（1）认知策略、元认知策略在等级制风格与数学学业成就关系中起完全中介的作用,而资源管理策略在等级制风格与数学学业成就间的中介效应不显著。（2）认知策略、元认知策略在整体性风格与数学学业成就关系中起部分中介的作用,而资源管理策略在整体性风格与数学学业成就间的中介效应不显著。（3）认知策略、元认知策略和资源管理策略在开放性风格与数学学业成就关系中起部分中介的作用。（4）元认知策略在等级制风格与数学学业成就间的中介作用以及在开放性风格与数学学业成就间的中介作用都是相对较大的。     

临床决策的基本思路

临床决策是临床工作的科学规划和策略抉择。其范畴包括管理、科研、教学和医疗。诊断决策应遵循6个步骤:资料的收集、甄别、分类、分析、判断和验证;思路方法上要正确处理现象与本质、局部与整体、共性与个性、静态与动态等4个关系。治疗决策应从性质与目的、治本与治标、中医与西医、总体与个体、病理与心理、医生与病人、效果与效价等7个方面提出科学可行的原则和措施。     

中国古代堕胎考略

临床住院医师规范化培训是培养高水平专业人才的重要手段,是提高我国医疗水平的重要环节和措施,是一项有关卫生事业发展的重要工作。目前,我国住院医师培训还存在不少问题。在各方面的不断努力和探索下,一定能够使住院医师规范化培新工作做得更好。