顿悟体验的心理与神经机制

顿悟体验研究是揭示顿悟本质的重要途径。先前研究从认知角度对顿悟问题解决中的"旧而无效解题思路如何抛弃"与"新而有效解题思路如何形成"过程进行了颇多探讨,但较少探讨顿悟体验本身。顿悟体验研究对理清创造性顿悟中关键过程间的关系及阐明顿悟的科学规律均有重要的意义。基于创造性顿悟的"新旧交替"的动态视角,本项目拟借助多元方法来对言语类和视图类问题解决过程中尝试解题阶段和答案闪现阶段的顿悟体验的心理实质与脑机制进行研究。本项目成果不仅可以丰富和优化顿悟问题研究的方法学体系,而且能从知情转化层面深化对创造性顿悟脑机制的认识。     

Knowledge and assertion in “Gettier” cases

Assertion is fundamental to our lives as social and cognitive beings. By asserting, we share knowledge, coordinate behavior, and advance collective inquiry. Accordingly, assertion is of considerable interest to cognitive scientists, social scientists, and philosophers. This paper advances our understanding of the norm of assertion. Prior evidence suggests that knowledge is the norm of assertion, a view known as “the knowledge account.” In its strongest form, the knowledge account says that knowledge is both necessary and sufficient for assertability: you should make an assertion if and only if you know that it is true. The knowledge account has been rejected on the grounds that it conflicts with our ordinary practice of evaluating assertions. This paper reports four experiments that address an important objection of this sort, which focuses on a class of examples known as “Gettier cases.” The results undermine the objection and, in the process, provide further evidence for the knowledge account. The findings also teach some important general lessons about intuitional methodology and the curation of genres of thought experiment.     

The existence of superluminal particles is consistent with relativistic dynamics

Within an axiomatic framework, we prove that the existence of faster than light (FTL) particles is consistent with (does not contradict) the dynamics of Einstein's special relativity. The proof goes by constructing a model of relativistic dynamics where FTL particles can move with arbitrary speeds. To have a complete picture, we not only construct an appropriate model but explicitly list all the basic assumptions (axioms) we use.     

Coming to terms: Client subjective experience of ending psychotherapy

How do clients consider their own contribution and that of their therapist in the last phase of therapy when they are moving toward the end? Thirty-seven clients who had received therapy from highly experienced clinicians were interviewed. Since the time for ending had not been decided at the onset, clients in both short- and long-term therapies were included. Thematic case-by-case analyses were carried out. Clients actively engaged in looking back and looking ahead, as means of reflecting on their capability to handle issues on their own. The majority of clients were satisfied with what they perceived as a reciprocal engagement that enabled them to come to terms with emotionally charged issues in life and in therapy. For some clients unresolved issues remained: wondering whether a therapist with another approach could have helped more; feeling pushed away by the therapist; having to take the lead in ending therapy; the fear of being an “unworthy” client; or wanting to end without the therapist’s approval. Coming to terms with the ending of therapy was highly personally meaningful and loaded with affective tensions, in ways that were not always shared with their therapist.     

Virtually overcoming grammar learning with 3D application of Loci mnemonics?

The importance of contextual information for memory organization has been advocated by memory research and ancient mnemonic techniques (e.g., method of loci), yet it remains overlooked in most current study environments. Here, German noun gender was presented to 48 participants without prior knowledge of German, either without or within a provided spatial context consisting of a simulated virtual environment that could be explored freely. The three main findings were: in addition to reduced forgetting rate, memory was significantly enhanced when acquisition had occurred with a spatial context than without, in immediate, and delayed cued recall, as well as in delayed free recall. Second, visualization ability predicted spatial context efficiency as a memory aid for cued recall. Lastly, performance of the method of loci‐based method correlated with its perceived efficiency. This is the first study to experimentally demonstrate the potential effectiveness of computer‐induced spatial context on grammar learning.     

World‐Pictures and Wittgensteinian Certainty

Although certainty is a fundamental notion in epistemology, it is less studied in contemporary analytic epistemology than other important notions such as knowledge or justification. This paper focuses on Wittgensteinian certainty, according to which the very basic dimension of our epistemic practices, the elements of our world‐pictures, are objectively certain, in that we cannot legitimately doubt them. The aim of the paper is to offer the best philosophical way to clarify Wittgensteinian certainty, in a way that is consonant with Wittgenstein's fundamental insights. The paper critiques two alternative proposals for clarifying Wittgensteinian certainty that are philosophically unsatisfying: the rule view and the proposition view. Finally, it instead shows how viewing world‐pictures as pictures, in the sense of unclear conceptions, is a more philosophically fruitful approach to understanding world‐pictures.     

可以兼顾策略、认知状态和能力的CD-CAT选题方法

当CD-CAT测验需要同时诊断被试的解题策略、认知状态并评估被试的宏观能力时,就需要在选题过程中兼顾这三个测量目标。用两种不同方式将多策略香农熵(MSSHE)指标与Fisher信息量相结合,提出多策略情境中的DWI指标MSDWI)选题法与“先用MSSHE后用Fisher信息量”的两步选题法。基于多策略RRUM模型(MS-RRUM),将这两种方法与随机选题法在不同属性数量条件下进行模拟比较,结果表明：当属性数量为4个或6个时,两步选题法在策略判准率、认知状态判准率和能力估计三个方面都有最佳的效果。     

The association of motor information and verbal information: a new perspective on the mechanism of the SPT effect

Current perspectives on the mechanism underlying the Subject Performed Task (SPT) effect have not yet reached a consensus. This study investigated whether the association between motor and verbal information is a key factor that explains the SPT effect. Experiment 1 and 2 tested whether motor and verbal retrieval memory performance were different when the association level was varied. Results showed that when subjects used low association learning materials, memory performance in either motor or verbal retrieval condition was significantly better than performance in the combined retrieval condition. Experiment 3 examined whether the level of association between motor and verbal information affects the SPT effect. Results revealed that the SPT effect disappeared when low association learning materials were used. Our findings imply that the high association level between motor and verbal information enables mutual activation of the two information types, leading to improved memory performance.     

考虑题目选项信息的非参数认知诊断计算机自适应测验

选择题中的作答选项能提供额外诊断信息, 为充分利用选项信息, 研究提出认知诊断计算机自适应测验(CD-CAT)中两种处理选择题选项信息的非参数选题策略和变长终止规则。模拟研究的结果发现：(1)定长条件下两种非参数选题策略的分类准确性整体要高于参数选题策略; (2)两种非参数选题策略较参数选题策略具有更加均衡的题库使用情况; (3)非参数选题策略在两种新的变长终止规则下具有更高的分类准确率; (4)两种非参数选题策略均适用于选择题CD-CAT情境, 使用者可任选其一进行测验分析。