性别配对与奖励结构对中学生合作行为的影响

目的:研究不同性别配对与奖励结构对中学生合作行为产生怎样的影响。方法:选择夹豆速度相同的初二学生为研究对象,在不同的性别配对和奖励结构下进行夹豆实验,考察性别配对与奖励结构对中学生合作行为。结果:性别配对对中学生合作行为有显著影响,其中男×男配对组合的合作水平最高,而女×女配对组合的合作水平最低,男×女配对水平居中;另外,针对不同的奖励对象进行实验同样也产生不同的合作水平,奖励个人合作水平较低,奖励组合合作水平较高;在奖励对象为组合时采用不同的计分方式对合作行为也有显著的影响,分别计分合作水平较低,混合计分合作水平较高。结论:应根据初中生的这些特点进行有针对性地引导,促进他们合理的合作和竞争。     

个体自尊与婚姻满意度关系的模型构建

本研究探讨了个体的自尊、自我保护倾向、对伴侣的回应方式、承诺与删因满意度的关系。结果表明：自尊通过对伴侣的回应方式和自我保护影响着个体的承诺和蜊因满意度;自尊、对伴侣的回应方式和自我保护通过承诺影响着个体的婚姻满意度。本研究还构建了自尊与婚姻满意度关系的理论模型。     

Common mechanisms in apparent motion perception and visual pattern matching

There are close functional similarities between apparent motion perception and visual pattern matching. In particular, striking functional similarities have been demonstrated between perception of rigid objects in apparent motion and purely mental transformations of visual size and orientation used in comparisons of objects with respect to shape but regardless of size and orientation. In both cases, psychophysical data suggest that differences in visual size are resolved as differences in depth, such that transformation of size is done by translation in depth. Furthermore, the process of perceived or imagined translation appears to be stepwise additive such that a translation over a long distance consists of a sequence of smaller translations, the durations of these steps being additive. Both perceived and imagined rotation also appear to be stepwise additive, and combined transformations of size and orientation appear to be done by alternation of small steps of pure translation and small steps of pure rotation. The functional similarities suggest that common mechanisms underlie perception of apparent motion and purely mental transformations. In line with this suggestion, functional brain imaging has isolated neural structures in motion area MT used in mental transformation of size.     

Mood—Creativity Relationship in Groups: The Role of Equality in Idea Contribution in Temporal Mood Effects

As people working in groups might fare better in solving complex problems than those working alone (e.g., Laughlin, Hatch, Silver, & Boh, Journal of Personality and Social Psychology, 90 , 2006 and 644), organizations have increasingly assigned creative projects to groups. Group members contribute their collective efforts over time until the creative project has come to fruition. Although mood is identified as an important antecedent to creativity, little is known about the temporal pattern of how group mood enhances or inhibits group creativity, as well as the underpinning group process that explains the mood—creativity link in groups. We set out to address these questions by taking a within-group approach to study the temporal trends of how group mood precedes group creativity and to examine idea contribution equality (ICE) as a mediating group process. We conducted a three-wave longitudinal study among student workgroups tasked to complete a creativity project over a 1-month span. Evidence showed that positive mood is positively associated with concurrent ICE and negative mood is negatively associated with lagged ICE. Furthermore, a mediation model showed that negative mood eventually hampered expert-rated group creative performance by reducing ICE over time. These findings add new knowledge to the temporal mood—creativity relation within the group context.     

具有认知诊断功能的区块化自适应测验的提出及验证

CD-CAT以Q矩阵理论为基础，存在着处理属性个数限制的缺点。为了解决该问题，本文提出了具有认知诊断功能的区块化自适应测验（CD-BAT）。CD-BAT将单个的CD-CAT作为区块进行处理，把前一区块的信息作为先验信息用于后一区块的估计过程，并不断更新和修正前一区块的估计结果。模拟研究表明，CD-BAT的判准率略优于CD-CAT，题库质量下降时，这种优势逐渐加大。随着CD-BAT的区块的增加，其属性判准率呈现上升趋势。     

多属性决策任务中焦虑型个体的信息加工特点研究

该研究以多属性职业选项为材料,采用计算机化的信息板技术初步考察了焦虑型个体在多属性决策过程中的信息加工特点,结果表明焦虑型个体与非焦虑个体的决策过程有所不同。主要表现在与非焦虑型的决策者相比,焦虑型的被试在决策过程中对职业属性的加工时间更长,加工的信息也更多;在决策前后他们对完成决策任务的信心水平评估都很低,但是在搜索模式上焦虑型的决策者与非焦虑型的决策者没有差别。在研究的讨论部分对焦虑型个体决策过程中信息加工特点的原因进行了分析。     

Connecting the dots: Illusory pattern perception predicts belief in conspiracies and the supernatural

A common assumption is that belief in conspiracy theories and supernatural phenomena are grounded in illusory pattern perception. In the present research we systematically tested this assumption. Study 1 revealed that such irrational beliefs are related to perceiving patterns in randomly generated coin toss outcomes. In Study 2, pattern search instructions exerted an indirect effect on irrational beliefs through pattern perception. Study 3 revealed that perceiving patterns in chaotic but not in structured paintings predicted irrational beliefs. In Study 4, we found that agreement with texts supporting paranormal phenomena or conspiracy theories predicted pattern perception. In Study 5, we manipulated belief in a specific conspiracy theory. This manipulation influenced the extent to which people perceive patterns in world events, which in turn predicted unrelated irrational beliefs. We conclude that illusory pattern perception is a central cognitive mechanism accounting for conspiracy theories and supernatural beliefs.     

Effects of aging and depression on mnemonic discrimination ability

Aging and depression have been found to be associated with poorer performance in mnemonic discrimination. In the current study, a two-response format mnemonic similarity test, Cognitive Drug Research MST, was used to compare these effects. Seventy-six participants were tested; with 52 participants in the young group, aged 18–35 years, and 24 participants in the elderly group, aged 55 years or older. Twenty-two young participants and 10 elderly participants met DSM-IV criteria for MDD or dysthymia. Age-related deficits were found for lure identification and speed of response. Differences in speed of responses to lure images were found for younger depressed participants, and depressive symptom severity was found to be negatively associated with lure identification accuracy in the elderly. These findings may be viewed as putative behavioral correlates of decreased pattern separation ability, which may be indicative of altered hippocampal neurogenesis in aging and depression.