新冠疫情下过度胜任教师会进行知识共享吗?角色宽度自我效能感和知识共享意愿的链式中介作用

新冠肺炎疫情之下教育部要求教师利用网络平台“停课不停学”。本文以人-环境匹配理论为基础,探讨疫情之下过度胜任教师的知识共享行为。采用126份一线教师问卷调查数据,应用bootstrap进行了中介效应的检验。结果表明,过度胜任感较高的教师会产生更多的知识共享行为; 角色宽度自我效能感和知识共享意愿在过度胜任感影响知识共享行为过程中起中介作用,且角色自我效能感和知识共享意愿还存在链式中介作用。研究成果深化了过度胜任感影响教师知识共享行为作用机制的认识,在重大社会事件下探索过度胜任带来的积极影响,并提出相应的政策建议,为学校教师提升教学水平以更好地完成教育教学目标提供理论和实践依据。     

Visual working memory enhances target discrimination accuracy with single-item displays

The maintenance of information in visual working memory has been shown to bias the concurrent processing in favor of matching visual input. The present study aimed to examine whether this bias can act at an early stage of processing to enhance target feature perception in single-item displays. Participants were sequentially presented with two distinct colored stimuli as memory samples and a retro-cue indicating which of the two samples should be maintained for subsequent memory test. During the retention interval, they had to discriminate the gap orientation of a Landolt target presented through a single visual stimulus that could match one or neither of the two samples. Across two experiments, we consistently found that discrimination performance was more accurate when the Landolt target was situated within a stimulus that matched the sample being retained in visual working memory, as compared with when the target was not. This effect cannot be attributed to the mechanism of passive priming, because we failed to observe priming effects when the stimulus containing the target matched the sample that was retro-cued to be irrelevant to the working memory task, as compared to when the stimulus matched neither sample. Given the fact that target stimuli were presented in single-item displays wherein external noise was precluded, the present findings demonstrate that the working memory bias of visual attention operating in the absence of stimulus competition facilitates early perceptual processing at the attended location via signal enhancement.

     

道德外语效应的三种机制及与外语水平的关系

道德外语效应(Moral Foreign Language effect)是指人们的道德判断在外语条件下发生改变的现象,自该效应提出以来,其背后的机制一直都是研究的热点。道德外语效应的解释机制主要有审慎加工增强、情绪反应减少和道德规范联结的减弱等。本文对三种影响机制进行了探讨,发现情绪、道德规范和外语水平对道德判断可能会产生影响。同时,本文指出未来可以从自我控制、认知启动效应、消极情绪启动效应及道德规范与外语水平之间的关系进行研究和探讨。     

近代乡绅劣化的成因——以苏北为个案的研究

民国时期,在全国范围内普遍出现了传统乡绅阶层劣化的现象,这是传统社会控制结构失衡之后的特殊产物.本文以苏北地区为例,对近代苏北乡绅劣化的成因进行分析,认为主要因素有四,即:19世纪中期以来的中央政权控制力的下降、传统乡村绅士阶层的分化、乡村权威的武化和封闭落后的地理环境等.     

Matching faces and expressions in pixelated and blurred photos

Matching the emotional expressions of pairs of face photos was slower with pixelated and blurred photos than with original, untransformed photos. Matching the identities of the same face pairs was unaffected by pixelation and blurring. Because pixelation and blurring degrade higher spatial frequencies carrying edge-based information that define feature shape more than lower frequencies carrying configural properties, these findings converge with findings for line drawings and negative photos in showing that expression and face recognition processes differ in their reliance on edge-based and configural information.     

Impaired discourse gist and working memory in children after brain injury

Emerging evidence suggests that a traumatic brain injury (TBI) in childhood may disrupt the ability to abstract the central meaning or gist-based memory from connected language (discourse). The current study adopts a novel approach to elucidate the role of immediate and working memory processes in producing a cohesive and coherent gist-based text in the form of a summary in children with mild and severe TBI as compared to typically developing children, ages 8-14 years at test. Both TBI groups showed decreased performance on a summary production task as well as retrieval of specific content from a long narrative. Working memory on n-back tasks was also impaired in children with severe TBI, whereas immediate memory performance for recall of a simple word list in both TBI groups was comparable to controls. Interestingly, working memory, but not simple immediate memory for a word list, was significantly correlated with summarization ability and ability to recall discourse content.     

Why ritualized behavior? Precaution Systems and action parsing in developmental, pathological and cultural rituals

Ritualized behavior, intuitively recognizable by its stereotypy, rigidity, repetition, and apparent lack of rational motivation, is found in a variety of life conditions, customs, and everyday practices: in cultural rituals, whether religious or non-religious; in many children's complicated routines; in the pathology of obsessive-compulsive disorders (OCD); in normal adults around certain stages of the life-cycle, birthing in particular. Combining evidence from evolutionary anthropology, neuropsychology and neuroimaging, we propose an explanation of ritualized behavior in terms of an evolved Precaution System geared to the detection of and reaction to inferred threats to fitness. This system, distinct from fear-systems geared to respond to manifest danger, includes a repertoire of clues for potential danger as well as a repertoire of species-typical precautions. In OCD pathology, this system does not supply a negative feedback to the appraisal of potential threats, resulting in doubts about the proper performance of precautions, and repetition of action. Also, anxiety levels focus the attention on low-level gestural units of behavior rather than on the goal-related higher-level units normally used in parsing the action-flow. Normally automatized actions are submitted to cognitive control. This "swamps" working memory, an effect of which is a temporary relief from intrusions but also their long-term strengthening. Normal activation of this Precaution System explains intrusions and ritual behaviors in normal adults. Gradual calibration of the system occurs through childhood rituals. Cultural mimicry of this system's normal input makes cultural rituals attention-grabbing and compelling. A number of empirical predictions follow from this synthetic model.     

Sex differences in regret: all for love or some for lust?

Few sex differences in regret or counterfactual thinking are evident in past research. The authors discovered a sex difference in regret that is both domain-specific (i.e., unique to romantic relationships) and interpretable within a convergence of theories of evolution and regulatory focus. Three studies showed that within romantic relationships, men emphasize regrets of inaction over action (which correspond to promotion vs. prevention goals, respectively), whereas women report regrets of inaction and action with equivalent frequency. Sex differences were not evident in other interpersonal regrets (friendship, parental, sibling interactions) and were not moderated by relationship status. Although the sex difference was evident in regrets centering on both sexual and nonsexual relationship aspects, it was substantially larger for sexual regrets. These findings underscore the utility of applying an evolutionary perspective to better understand goal-regulating, cognitive processes.     

一种新的智力观--塞西的智力生物生态学模型述评

美国心理学教授塞西在对传统智力心理测量学理论批评的基础上于1990年提出了信息加工取向的智力的生物生态学模型。这一模型主要有四个基本假设,即智力是一个多种资源系统;生物潜能与环境力量的相互作用;适宜的“最近过程”是智力发展的“引擎”;把“动机”整合到智力发展中。塞西智力的生物生态学模型为我们揭示人的智力的本质提供了一个新的视角。