情绪效价对趋避反应的作用

刺激的情绪信息通常可帮助人类快速地做出相应的趋近或回避反应。实验室情境下研究者对趋避的操作性定义不尽相同, 但以往绝大部分研究证实了趋利避害的相容效应：正性情绪引起趋近反应, 负性情绪引起回避反应。动机定向理论认为, 这种促进作用是自动的, 而事件编码理论认为, 这种促进作用依赖于外显的效价判断。未来研究应进一步明确界定趋近和回避的操作性定义, 采用更敏感的实验范式解决两种理论的纷争, 以深入阐释相容效应的心理机制。     

Visual working memory load disrupts the space‐based attentional guidance of target selection

During visual search, the selection of target objects is guided by stored representations of target‐defining features (attentional templates). It is commonly believed that such templates are maintained in visual working memory (WM), but empirical evidence for this assumption remains inconclusive. Here, we tested whether retaining non‐spatial object features (shapes) in WM interferes with attentional target selection processes in a concurrent search task that required spatial templates for target locations. Participants memorized one shape (low WM load) or four shapes (high WM load) in a sample display during a retention period. On some trials, they matched them to a subsequent memory test display. On other trials, a search display including two lateral bars in the upper or lower visual field was presented instead, and participants reported the orientation of target bars that were defined by their location (e.g., upper left or lower right). To assess the efficiency of attentional control under low and high WM load, EEG was recorded and the N2pc was measured as a marker of attentional target selection. Target N2pc components were strongly delayed when concurrent WM load was high, indicating that holding multiple object shapes in WM competes with the simultaneous retention of spatial attentional templates for target locations. These observations provide new electrophysiological evidence that such templates are maintained in WM, and also challenge suggestions that spatial and non‐spatial contents are represented in separate independent visual WM stores.     

Big Five Personality and Creativity: The Moderating Effect of Motivational Goal Orientation

This study examined the association between the big five personality dimensions and creativity through the moderation of motivational goal orientation. One hundred and ninety students engaged in full‐time employment completed questionnaires, which were used to assess the variables of interest. Regression moderation analyses supported some of the expected hypotheses. The associations between the big five dimensions and creativity were moderated by learning motivational goal orientation. Individuals high in extroversion, emotional stability, and low in conscientiousness, are most creative when they are oriented toward learning. In addition, openness fully predicted creativity, without the moderation of goal orientation. The results are discussed in terms of the interactional nature of personality and goal orientation theory.     

Continuing Education in Motivational Interviewing for Addiction Counselors: Reducing the Research‐to‐Practice Gap

The authors evaluated the effectiveness of continuing education training in motivational interviewing (MI) for addiction counselors. Participants reported a significant increase in counseling self‐efficacy, and 87.5% reported increasing MI use in their practice. Only 3.8%, however, participated in posttraining consultation.     

自主安全动机与安全绩效的多水平模型

自主安全动机对安全绩效的积极作用已引起研究者的关注, 但自主动机与安全绩效多水平的作用机制还未得到深入研究。结合自我决定理论与多水平动机过程, 个体与团队自主安全动机通过安全目标, 进而影响安全绩效; 在安全工作情境中通过对自主支持、工作重塑的干预促进自主安全动机。研究拟结合认知测量和问卷测量, 通过纵向研究、实验、准实验研究等方法探讨上述问题。研究结果一方面可拓展自我决定理论与安全绩效的研究; 另一方面为安全管理实践, 尤其是安全培训提供理论依据, 对高风险企业安全绩效的改善有积极的现实意义。     

高、低趋近积极情绪对不同注意加工阶段的影响

本研究采用事件相关电位(ERP)技术和Flanker任务, 探讨由甜点和风景图片分别诱发的高、低趋近积极情绪对注意的早期和晚期加工的影响。同时, 为更精细考察情绪对视觉注意范围早期加工阶段的影响, 在75%的Flanker试次中加入了一个白色方块探测刺激, 该刺激位于中央Flanker字母的左侧或右侧。研究结果表明, 在注意加工的早期感知阶段, 高趋近积极情绪下, 带有白色探测刺激的Flanker字母比低趋近积极情绪条件下诱发了更小的P1, 表明高趋近积极情绪窄化了早期注意加工范围; 在注意加工的晚期选择阶段, 高趋近积极情绪下的Flanker字母诱发了更大的N2b成分, 低趋近积极情绪下诱发了更大的P3成分, 表明高趋近积极情绪增强了对干扰的抑制能力, 而低趋近积极情绪下个体调用了更多的注意资源用以加工周边刺激。     

Identification of abnormal movements with 3D accelerometer sensors for seizure recognition

Human-activity recognition and seizure-detection techniques have gathered pace with the widespread availability of wearable devices. A study of the literature shows various studies for 3D accelerometer-based seizure detection that describe the selection of acceleration variables and controlled transformations, while discarding the remaining input variable contributions. The aim of this research is to evaluate feature extraction based on different techniques and with the advantage of an overview of all information on the problem. Three feature extraction techniques – namely, Locally Linear Embedding, Principal Component Analysis (PCA) and a Distance-Based PCA – are analyzed and their outcomes compared against K-Nearest Neighbor and Decision Trees. A realistic experimentation simulating epileptic mioclonic convulsions was performed. The PCA-based methods were found to produce solutions that managed the problem perfectly well, either learning specific models for each individual or learning generalized models.     

动机性视角与认知加工视角下三重自我的层级关系

自我并非是一个单一的、整体的认知结构,至少包含3个基本的自我表征形式:个体自我、关系自我与集体自我。从动机性视角出发,3种自我的层级关系存在4种可能的假设:(1)个体自我首要性假设;(2)关系自我首要性假设;(3)集体自我首要性假设;(4)情境性假设。以往动机性视角出发的研究偏向于支持个体自我首要性假设,但其结论仍需通过进一步考察其他可能变量的作用而加以验证。从认知视角考虑三重自我的层级关系时,以往的研究结果并不统一,缺乏同时比较个体自我、关系自我、集体自我的层级关系的整合性研究。今后需要重点探索将三重自我整合起来的新的实验范式,从而有助于对三重自我层级关系的分析与探究。     

Criteria instability and the isolated option effect

In two-stage choices, decision makers often compare a new (isolated) option with the winner from the first stage. Previous research has identified a choice advantage for an isolated option, ostensibly due to loss aversion. We propose an alternative mechanism suggesting that instability of the criteria used in each choice stage is the main driver of the isolated option effect. Results from a series of experiments support the criteria instability account and not loss aversion as the explanation for the isolated option effect.     

基于概化理论的方差分量变异量估计

概化理论广泛应用于心理与教育测量实践中, 方差分量估计是进行概化理论分析的关键。方差分量估计受限于抽样, 需要对其变异量进行探讨。采用蒙特卡洛(Monte Carlo)数据模拟技术, 在正态分布下讨论不同方法对基于概化理论的方差分量变异量估计的影响。结果表明: Jackknife方法在方差分量变异量估计上不足取; 不采取Bootstrap方法的“分而治之”策略, 从总体上看, Traditional方法和有先验信息的MCMC方法在标准误及置信区间这两个变异量估计上优势明显。