短式知觉压力量表(PSS-10)在中国大学生中的信效度

考察短式知觉压力量表(PSS-10)在中国大学生中的效度和信度。用PSS-10、一般健康问卷(GHQ-12)、生活取向测验修订版(LOT-R)、一般自我效能量表(GSES)以及Connor-Davidson心理韧性量表(CD-RISC)对1762名大学生进行调查。PSS-10的条目质量良好; 经探索与验证后,量表的潜在结构为稳定的两个因子,与实测数据拟良好; PSS-10的效标关联效度较好。总量表、无助感和自我效能信念的内部一致性系数达到了测量学要求; 两周后其重测信度大于0.6; 它们的问卷辨识系数均大于0.9。短式知觉压力量表在中国大学生中具有良好的信效度,能够作为有效测量大学生领悟或感受到压力的程度。     

自动驾驶车中的人机信任

自动驾驶是当前智能汽车发展的重要方向。在实现完全自动化驾驶前, 驾驶员和自动驾驶系统共享车辆控制权, 协同完成驾驶任务。在该人-机共驾阶段, 人对自动驾驶系统的信任是影响自动驾驶中人机协同效率与驾驶安全的关键要素; 驾驶员对自动驾驶车辆保持适当的信任水平对驾驶安全至关重要。本研究结合信任的发展阶段与影响因素提出了动态信任框架。该框架将信任发展分为倾向性信任、初始信任、实时信任和事后信任四个发展阶段, 并结合操作者特征(人)、系统特征(自动驾驶车系统)、情境特征(环境)三个关键因素分析不同阶段的核心影响因素以及彼此间的内在关联。根据该框架, 信任校准可从监测矫正、驾驶员训练、优化HMI设计三类途径展开。未来研究应更多关注驾驶员和人机系统设计特征对信任的影响, 考察信任的实时测量和功能特异性, 探讨驾驶员和系统的相互信任机制, 以及提升信任研究的外部效度。     

对话心智与身体：具身认知的内感受研究转向

具身认知观念试图强调心智是根植于身体的,身体经验会对认知过程产生重要影响。但对于心智与身体的对话是如何进行的？身体通过何种渠道如何影响心智？等问题困扰着具身认知的支持者。传统的具身认知研究遭遇可重复性危机,身体状态改变影响高级认知的结论受到质疑。近年来,越来越多的证据表明内感受与身体表征、具身情绪以及社会认知等存在着密切的联系,因而内感受很有可能在身体加工和高级认知过程中起着重要的调节作用。     

三数值加工系统假说：数值加工机制新探

数值加工的机制是数量认知领域的核心科学问题之一。三数值加工系统假说从新的角度阐释了各种数值加工机制的关系, 它认为认知系统通过三种不同的机制来快速分析非符号刺激的数值：感数(subitizing)机制精确地分析1~4个刺激的数值; 数量(numerosity)机制分析密度适中的刺激点阵的数量, 加工误差正比于被分析的数量, 符合韦伯定律; 当刺激的密度超出一定范围时, 密度(density)机制通过分析刺激密度来推断刺激的数量关系, 加工误差正比于被加工数值的平方根。一系列研究证实, 这三种数值加工机制具有不同的行为规律和脑电特征。未来研究需要探讨数量机制是否分别与感数机制、密度机制存在平行激活, 从而阐明三种数值加工机制的作用关系。     

海量信息如何影响跨期决策?基于注意资源的理论视角

信息过少容易使人成为井底之蛙, 不利于做出高质量的决策; 那拥有更多信息是否就能做出更高质量、有远见的决策呢?已有研究发现海量信息导致注意资源稀缺, 注意资源对跨期决策至关重要, 但海量信息如何影响跨期决策的内在机制尚不明确。本研究基于注意资源的理论视角提出：海量信息加剧注意资源的稀缺, 一方面当前信息捕获过多注意资源, 导致指向未来的注意资源减少, 造成模拟未来不清晰、预测未来不准确, 意图形成减少; 另一方面增加对时间紧迫性的关注, 减少为长远未来做计划的意愿, 导致在跨期权衡中更偏好近期选项。长期导向的特质可以使个体将注意聚焦于长远收益, 做出更有远见的决策。研究结果将科学地解释海量信息影响跨期决策的内在机制, 并为进一步探讨助推海量信息环境下有远见的跨期决策提供理论与实证依据。     

The Experiences in Close Relationship Scale (ECR)-Short Form: Reliability,Validity, and Factor Structure

Convergence between the MMPI–2 Restructured Form (MMPI–2–RF; Ben-Porath &; Tellegen, 2008) interpersonal scales and 2 interpersonal circumplex (IPC) measures was examined. University students (N = 405) completed the MMPI–2 and 2 IPC measures, the Interpersonal Adjectives Scales Revised Big Five Version (IASR–B5; Trapnell &; Wiggins, 1990) and the Inventory of Interpersonal Problems Circumplex (IIP–C; Horowitz, Alden, Wiggins, &; Pincus, 2000). Internal consistency was adequate for 3 of the 6 scales investigated. The majority of scales were located in their hypothesized locations, although magnitude of correlations was somewhat weaker than anticipated, partly owing to restricted range from using a healthy sample. The expected pattern of correlations that defines a circular matrix was demonstrated, lending support for the convergent and discriminant validity of the MMPI–2–RF interpersonal scales with respect to the assessment of interpersonal traits and problems.     

Literatur in Examensarbeiten

After the Second World War up to the 1980s Harald Schultz-Hencke’s so-called German neopsychoanalysis was an important theoretical reference for psychoanalysts in the German Psychoanalytical Society (DPG). Simultaneously, however, references were increasingly being made to quintessential psychoanalytical sources which of course had an impact on the psychoanalytical training. The references in final papers of a DPG psychoanalytical institute from 1971–2008 were compared to the references in clinical papers of the International Journal of Psychoanalysis. It can be shown that the influence of German neopsychoanalysis in the final theses of the psychoanalytical institute in question has diminished since the 1990s and has become irrelevant in the twenty-first century.     

Microstructures and tensile properties of 304 steel with dual nanocrystalline and microcrystalline austenite content prepared by aluminothermic reaction casting

The microstructures of 304 stainless steels with different amounts of nanocrystalline and microcrystalline austenite prepared by an aluminothermic reaction casting, without and with annealing at 1073?K for 8?h, have been investigated by X-ray diffraction, an electron probe micro-analyser, a transmission electron microscope and a scanning electron microscope. The steels, both without and with annealing, consisted of different dual nanocrystalline and microcrystalline austenite combinations and a little nanocrystalline δ ferrite, while the average grain size of the nanocrystalline austenite increased from 19 to 26?nm and volume fraction of the microcrystalline austenite increased from 17 to 30% after annealing. The tensile strength of the steel was dramatically increased from 500 to 1000?MPa and the tensile elongation ratio increased from 8 to 12% after annealing. However, the tensile strength was decreased to 600?MPa and the tensile elongation ratio increased from 12 to 22% after an annealing at 1273?K. The combination of dual nanocrystalline and microcrystalline austenite obtained after the annealing at 1073?K results in the best tensile properties.     

Thermophysical properties of undercooled liquid cobalt

The surface tension of undercooled liquid cobalt has been measured by the oscillating-drop technique combined with electromagnetic levitation. The accuracy of the method was verified by measurements of the surface tension of liquid nickel. The liquid cobalt was undercooled by up to 231K (0.13T _m), and its surface tension determined to be σ_Co =1875 0.348(T-T _m)mNm^-1. From this result, the viscosity, self-diffusion coefficient, density and thermal diffusivity of undercooled liquid cobalt were derived. Using these thermophysical parameters, the growth velocity of cobalt dendrite is calculated and shown to agree well with experimental results. Furthermore, the Marangoni number and the Rayleigh number are calculated; these increase slowly with increasing degree of undercooling.     

Valence band structure of the NiAl–Mo alloy from the photoelectron spectrum

The valence band structures of the NiAl–Mo alloy was investigated by photoelectron spectroscopy. The valence band spectra of the NiAl–Mo alloy was shifted away from the Fermi level so that the Ni-d-band centroid moved to a higher energy by 0.22 eV as Mo was added. A possible explanation lied in the overlap of Ni-d bands in the energy with Mo-d and Al-p bands. The participation of Mo-d bands was correlated with the site preference of Mo in NiAl alloys.