The Undecidability of Grisin's Set Theory

We investigate a contractionless naive set theory, due to Grisin [11]. We prove that the theory is undecidable.     

Understanding families as systems

In this article, we discuss recent research that has arisen from theoretical and conceptual models that use a systems metaphor for understanding families. We suggest that research stimulated by such models leads social scientists in new and important directions in understanding the social and emotional development of children in their families. These models view development as resulting from the dynamic transactions across multiple levels of family systems, which regulate a child's behavior. Thus, these models are important in considering multiple influences on development and adaptation.     

On the logic of psychoanalytic theory

Psychoanalytic theory shows some specific features and problems. It exists in a number of variations, according to different schools as well as cultural and subcultural conditions, with different understandings even of core concepts. Instead of producing definite knowledge, results remain uncertain. They vary in use and imply a permanent reworking of ideas and conceptions. This is the effect of the kind of theory psychoanalysis has to use. Since psychodynamics are a special kind of heterogeneous, changing, always different, emergent-in a word, autopoietic-reality, psychoanalysis cannot use the methods of a denotative theory (algorithmic reduction leading to strictly defined and formulated calculations) but has to use connotative theories. Connotative theories use open concepts which provide an active and flexible access to autopoietic reality. They are able to cope with the difference between singularities as well as with the distance between general logic and empirical reality. Problems tied to this possibility are structural fuzziness, a dependence on forms of use, multiple paradigms and difficulties in legitimation and balance of theories. This causes problems of institutionalisation. These problems are not a sign of immaturity but the normal way in which connotative theories appear and develop. They can therefore not be eliminated but only be treated in a better way.     

Languages for Gestalts of line patterns

Any formal model of visual Gestalt perception requires a language for representing possible perceptual structures of visual stimuli, as well as a decision criterion that selects the actually perceived structure of a stimulus among its possible alternatives. This paper discusses an existing model of visual Gestalt perception that is based on Structural Information Theory. We investigate two factors that determine the representational power of this model: the domain of visual stimuli that can be analyzed, and the class of perceptual structures that can be generated for these stimuli. We show that the representational power of the existing model of Structural Information Theory is limited, and that some of the generated structures are perceptually inadequate. We argue that these limitations do not imply the implausibility of the underlying ideas of Structural Information Theory and introduce alternative models based on the same ideas. For each of these models, the domain of visual stimuli that can be analyzed properly is formally defined. We show that the models are conservative modifications of the original model of Structural Information Theory: for cases that are adequately analyzed in the original model of Structural Information Theory, they yield the same results.     

诱发的积极情绪会促进多媒体学习吗?

近来, 教育心理学领域开始关注情绪因素对多媒体学习的影响, 其中诱发情绪逐渐成为研究者关注的指导设计形式。已有研究主要通过外部情绪诱发和内部情绪设计来考察诱发的积极情绪在学习过程中的作用, 并发现外部情绪诱发和内部情绪设计能够成功诱发积极情绪, 但由于情绪诱发方式的多样性和多媒体学习过程的复杂性, 诱发的积极情绪对学习效果的促进作用比较微弱。综述发现, 7项涉及外部情绪诱发的实验在学习结果上产生的效应量中值分别为d_保持 = -0.25, d_理解 = 0.04, d_迁移 = 0.30; 14项涉及内部情绪设计的实验在学习结果上产生的效应量中值分别为d_保持 = 0.27, d_理解 = 0.36, d_迁移 = 0.29。诱发的情绪对学习过程的主观体验影响很小。多媒体学习认知情感理论认为诱发的积极情绪会通过动机的中介作用进而促进学习; 相反, 认知负荷理论认为诱发的积极情绪会增加学习者的外在认知负荷从而阻碍学习。未来研究仍需关注情绪的操纵方法、效果评定以及潜在调节变量的作用等。     

组织内信任对员工建言行为的影响研究

知识经济对创新的追逐对组织员工的自主性及创造性提出了更高的要求。在学术界,包括进谏行为在内的员工角色外行为研究近来备受关注。进谏行为是不囿于身份的,以改善为目的,以变化为导向的言语行为。以社会交换理论为基础,通过对苏南地区379名企业员工的问卷调查,研究探索了组织内信任对进谏行为的影响。结果发现,对同事信任、直接上级信任和组织信任均能促进员工进谏,且对直接上级信任部分地通过对组织信任影响员工进谏。研究还发现,员工进谏行为与其自评的任务绩效存在正相关。     

情绪和社会行为的迷走神经活动基础

Porges基于自主神经进化观点提出的多迷走神经理论, 区分了无髓鞘迷走神经与髓鞘迷走神经的不同功能。认为对心脏等起调控作用的髓鞘迷走神经, 经由进化逐渐与调控头面部肌肉的脑神经之间产生了神经上的联系, 成为情绪和社会行为的神经基础。已有的相关实证研究表明, 髓鞘迷走神经与个体的情绪表达与调节、社会行为以及情绪与社会行为障碍密切相关。较低的迷走神经张力、较低的迷走抑制与较低的情绪调节能力相关; 迷走抑制较高的学前儿童有较少的行为问题以及较好的社交技能; 焦虑障碍的个体表现出较低的基线迷走张力以及较低的迷走抑制水平等。多迷走神经理论及其实证研究的结果, 对于推动情绪和社会行为的自主神经基础研究具有重要的意义。     

三维物体识别的心理表征：角度依赖还是角度独立

“物体识别是角度独立还是角度依赖”的问题一直存在着争议。以物体为中心理论认为是角度独立, 以观察者为中心理论认为是角度依赖。研究参照物体识别的“小几何体”思想自制实验材料, 采用启动范式, 在两个实验中通过考察结构信息和视图信息对物体识别的影响, 揭示物体识别的心理表征。结果发现: (1)形状信息和类别空间关系信息影响物体识别, 表明以物体为中心理论对物体识别表征机制解释的合理性; (2)角度信息可能独立于形状信息表征, 深度旋转方式下的识别成绩优于平面旋转, 表明以观察者为中心理论能够更好地解释三维物体识别的深度旋转现象。研究结果为物体识别理论的融合提供了实证依据。