A robust vision-based method for staircase detection and localization

A robust vision-based staircase identification method is proposed, which comprises 2D staircase detection and 3D staircase localization. The 2D detector pre-screens the input image, and the 3D localization algorithm continues the task of retrieving geometry of the staircase on the reported region in the image. A novel set of principal component analysis-based Haar-like features are introduced, which extends the classical Haar-like features from local to global domain and are extremely efficient at rejecting non-object regions for the early stages of the cascade, and the Viola–Jones rapid object detection framework is improved to adapt the context of staircase detection, modifications have been made on the scanning scheme, multiple detections integrating scheme and the final detection evaluation metrics. The V-disparity concept is applied to detect the planar regions on the staircase surface and locate 3D planes quickly from disparity maps, and then, the 3D position of staircase is localized robustly. Finally, experiments show the performance of the proposed method.     

教师组织认同、工作满意感与情感承诺的关系

组织认同是社会认同的一种特殊形式,是与组织具有一致性或从属于组织的知觉。通过对545名教师施测Mael和Tetrick组织认同问卷、工作满意感问卷和情感承诺问卷,结果发现:(1)个体的组织认同水平能够正向的预测其工作满意感水平;(2)个体的组织认同水平能够正向的预测其情感承诺水平;(3)个体的工作满意感能够部分中介其组织认同对于情感承诺的预测作用。     

对恐怖情绪的调节:认知重评和表达抑制的差异——一项ERP研究

本研究采用事件相关电位(ERP)技术,通过测量由视觉诱发的脑电成分晚正波(LPP)来比较情绪调节策略在生理电特征上的差异,探讨认知重评和表达抑制的优劣。实验结果表明:(1)从波幅的角度来比较:在400—600ms时间窗口内,认知重评条件下恐怖图片诱发的LPP波幅显著小于在自由观看条件下的波幅,而表达抑制和自由观看组所诱发的LPP波幅差异较小。(2)从时间进程的角度来比较:认知重评与自由观看组的差异发生在400ms并持续到600ms;而表达抑制和自由观看之间的差异发生在450ms但是只持续到550ms。这表明认知重评相较于表达抑制,对负性情绪起调节作用开始较早,并且持续时间较长。这为认知重评优于表达抑制策略提供了神经生理学上的证据。     

团体心理咨询对提高大学生自信心的效果研究

本研究探讨了团体心理咨询在提高大学生自信心方面的作用。我们精心设计了团体心理咨询活动的过程,并在活动前后用五种量表对团体成员进行了测量。通过分析量表测量结果及其他定性研究方法,我们发现：（１）团体心理咨询可以有效地提高大学生的自信心。（２）团体心理咨询在发展性目标上也是有效的。本研究结果对今后的团体心理咨询研究及其应用具有一定的参考价值。     

大学生学习适应量表的编制

对当代大学生学习适应问题进行了深入分析,在有关研究的基础上,探讨了当代大学生学习适应的主要因素,并编制一套适合当代大学生学习适应的测验。对四类院校918名大学生进行了施测,对调查数据进行了探索性因素分析和验证性因素分析。探索性因素分析结果表明,大学生学习适应的主要因素包括学习动机、教学模式、学习能力、学习态度、环境因素等5个方面;验证性因素分析结果表明,所提取的5个因素与构想模型拟合较好,测验具有较好的信、效度     

Effects of self–other decision-making on time-based intertemporal choice

The effects of self–other decision-making on intertemporal choice have been revealed in many studies using a monetary outcome. However, the outcome of intertemporal choice is not restricted to money; time is also a scarce and nonrenewable resource outcome. Thus, we conducted a series of experiments to address the effects of self–other decision-making on time-based intertemporal choice, a type of intertemporal choice that uses time as an outcome. Over the course of three experiments, differences in self–other decision-making were evidenced. Participants who made decisions for others were more likely to prefer the smaller but sooner (SS) option over the larger but later (LL) option and considered the gain of the SS option to be significantly greater than that of the LL option. Participants who made decisions for themselves were likely to prefer the LL option over the SS option. However, they considered the gains of the LL and the SS option to be indifferent. Changing the role of decision-making could affect the ability of individuals to consider the future consequences of their decisions. The effects of self–other decision-making on time-based intertemporal choice could be explained by the accounts of economic reasoning and construal level theory. The findings indicated that the effects of self–other decision-making on time-based intertemporal choice, which could be generated simply by rewording questions, can help individuals make optimal long-term choices without the need for increased control.     

儿童侵犯性性别差异的社会认知技能视角

影响侵犯性性别差异的因素众多,本研究认为的社会认知技能的性别差异与侵犯性性别差异有密切关系,认知技能是风险因素和行为之间的调节者。女性相比于男性侵犯性行为少与女性神经机制的发展缺陷概率小,生理成熟早,最终发展形成较男性更好的社会认知技能有密切关系。     

彝族原始宗教与道教的比较研究

彝族原始宗教和道教都是本土宗教,它们之间有诸多相融、相通之处,如诸神论、祖先崇拜、神仙思想贵阴贵柔、政教合一、返朴归真、天人感应、斋醮、法术法具、禹步等。     

血管壁切应力的优与非优

在生理水平的血管壁切应力属于优性因子,能促进血管重建,抑制内皮细胞凋亡,调节内皮细胞分泌功能,使内皮细胞形态产生适应性变化;而显著升高或降低的血管壁切应力则属于非优因子,导致高血压恶性循环发生、促进动脉粥样硬化及动脉血栓形成。实现切应力非优向优转化的重要途径是降低高血压和选择性阻断切应力对基因表达的调节