侧脑室注射东莨菪碱对条件反射及对海马神经元自发放电的影响

本工作采用食物性运动,条件反射方法和慢性微电极记录技术。条件反射实验在9只兔上进行,海马自发放电的实验在22只兔上进行。在9次实验中,30μg的东莨菪碱注入一侧脑室后,条件反射均受到抑制,而吃食则不受影响。注射剂量为45μg时,注射后3—5分,条件反射完全消失,而吃食行为在了次实验中不受影响,在2次实验中稍有减弱,注射后20分钟左右条件反射开始恢复;侧脑室注射40μg的东莨菪碱后,海马神经元的自发活动无明显改变。文中并对抗胆碱药作用于海马抑制条件反射的可能方式进行了讨论。     

双目光学测距仪器光轴不平行度范围的实验研究

目前,我国的双目光学测距仪器光轴不平行度公差大致有以下几组: 垂直发散:±15′±20′±20′±27′ 水平发散:60′60′60′60′ 水平会聚:20′20′30′36′上述数据基本上是沿袭国外有关数据。美苏两国这方面的数据大致为:     

汉语发展性阅读障碍儿童视觉同时性加工技能子成分的发展及其与阅读的关系

通过分别以高频汉字(实验1)和图形非言语材料(实验2)为刺激的两个联合视觉注意任务, 并采用基于Budensen视觉注意理论的参数估计方法, 系统地探查小学三~六年级汉语发展性阅读障碍儿童的视觉同时性加工技能缺陷的内在机制。以43名汉语发展性阅读障碍儿童和46名生理年龄匹配典型发展儿童为被试, 每类被试均被分为小学中年级组(三、四年级)和高年级组(五、六年级)。两个实验均发现不同年级组的阅读障碍儿童在知觉加工速度参数上显著小于控制组儿童。在空间注意分布权重参数上, 实验1的结果显示, 不同于控制组儿童向左侧化发展的注意分布模式, 两个年级组的阅读障碍儿童均表现为无偏的注意分布; 而实验2未发现显著组别差异。且这两种同时性加工子技能分别与不同水平的汉语阅读技能密切相关。结果表明, 汉语阅读障碍儿童在同时加工多个视觉刺激时存在持续的知觉加工速度缓慢的问题, 在同时加工言语类刺激时还表现出异常的空间注意分布模式。本研究有助于从基础认知层面揭示汉语发展性阅读障碍儿童的缺陷机理, 为进一步设计相关的提高阅读效率的干预方案提供理论依据。     

Achieving Effective Remote Working During the COVID-19 Pandemic: A Work Design Perspective

Existing knowledge on remote working can be questioned in an extraordinary pandemic context. We conducted a mixed-methods investigation to explore the challenges experienced by remote workers at this time, as well as what virtual work characteristics and individual differences affect these challenges. In Study 1, from semi-structured interviews with Chinese employees working from home in the early days of the pandemic, we identified four key remote work challenges (work-home interference, ineffective communication, procrastination, and loneliness), as well as four virtual work characteristics that affected the experience of these challenges (social support, job autonomy, monitoring, and workload) and one key individual difference factor (workers’ self-discipline). In Study 2, using survey data from 522 employees working at home during the pandemic, we found that virtual work characteristics linked to worker's performance and well-being via the experienced challenges. Specifically, social support was positively correlated with lower levels of all remote working challenges; job autonomy negatively related to loneliness; workload and monitoring both linked to higher work-home interference; and workload additionally linked to lower procrastination. Self-discipline was a significant moderator of several of these relationships. We discuss the implications of our research for the pandemic and beyond.     

Action Generalization Across Group Members: Action Efficiency Matters

Actions are usually generalized among social group members. Importantly, the efficiency of an action with respect to achieving an external target determines action understanding, and it may have different degrees of social relevance to social groups. Thus, this study explored the role of action efficiency in action generalization. We used computer animations to simulate actions in social groups initiated by visual action cues or category labels, and we measured differences in response times between identifying actions that were and were not consistent with group members, without explicit requirements regarding generalization. It was found that in both visually introduced and explicitly labeled social groups, when the group members acted inefficiently toward the external object, perceivers identified group-consistent actions faster than group-inconsistent actions, indicating that the exemplars' common inefficient actions are generalized to the unknown ingroup member, accordingly facilitating the identification of expected consistent inefficient action (Experiment 1). As this effect was not present when removing social group cues, it was determined to be specific to social groups (Experiment 2). Importantly, such generalization was not observed when the identical action was deemed efficient toward the external object (Experiment 3) and was specific to the demonstration of the action being completed by multiple group members rather than being repeated twice by one group member, supporting the group-based inference and ruling out the possibility of the increased memorability of inefficient actions leading to more generalization relative to efficient actions (Experiment 4). Therefore, the efficiency of an action bounds the generalization of the action across social group members through a process that is spontaneous and implicit. This constrained action generalization may be due to inefficient actions being represented as culture-specific conventional forms.     

Word Order Variation is Partially Constrained by Syntactic Complexity

Previous work suggests that when speakers linearize syntactic structures, they place longer and more complex dependents further away from the head word to which they belong than shorter and simpler dependents, and that they do so with increasing rigidity the longer expressions get, for example, longer objects tend to be placed further away from their verb, and with less variation. Current theories of sentence processing furthermore make competing predictions on whether longer expressions are preferentially placed as early or as late as possible. Here we test these predictions using hierarchical distributional regression models that allow estimates of word order and word order variation at the level of individual dependencies in corpora from 71 languages, while controlling for confounding effects from the type of dependency (e.g., subject vs. object), and the type of clause (main vs. subordinate) involved as well as from trends that are characteristic of individual languages, language families, and language contact areas. Our results show the expected correlations of length with position and variation only for two out of six dependency types (obliques and nominal modifiers) and no difference between clause types. These findings challenge received theories of across-the-board effects of complexity on word order and word order variation and call for theoretical models that relativize effects to specific kinds of syntactic structures and dependencies.     

高自尊易宽恕?基于中国青少年样本的研究

目的:以中国青少年为被试样本,整合已有自尊与宽恕关系的研究,运用元分析技术,明晰二者之间的整体关系,分析以往研究结论产生分歧的原因。方法:采用中国知网、万方数据库、Web of Science等检索系统搜索自尊与宽恕的相关文献,遴选出符合元分析研究标准的有效文献31项,70个独立样本,共计被试31516名。结果:(1)自尊与宽恕间存在中度相关,自尊可正向预测宽恕,验证了高自尊者易宽恕。(2)自我宽恕比人际宽恕与自尊的关系更为密切。(3)宽恕测量工具、被试类别、宽恕结构对自尊与宽恕的关系调节作用明显,性别无显著调节效应。     

佛教中的“琴弦”之喻与生命智慧

翻阅佛教典籍,有诸多"琴弦"之喻,然最为著名者,莫过于"因缘和合喻""狮子筋弦喻"和"不急不缓喻"。此三种譬喻分别出自《入中论讲记》《华严经》和《中阿含经》。一、因缘和合喻"因缘和合喻"见于月称论师造、法尊法师译讲的《入中论讲记》。在《入中论》"第六菩提心现前地"中,月称论师有一颂:"如影像等法本空,观待缘合非不有,于彼本空影像等,亦起见彼行相识。"     

High impulsivity,low self-control and problematic mobile phone use: The effect of poor sleep quality

Current Psychology - In order to ascertain the onset mechanism of problematic mobile phone use (PMPU), the current study tested the mechanism by which sleep quality is associated with PMPU though...     

老年人心理韧性与幸福感的关系:一项元分析

采用元分析方法探讨老年人心理韧性和幸福感之间的关系, 通过文献检索和筛选, 共有42篇中英文文献, 75个独立样本纳入元分析(N = 12856)。结果显示, 老年人心理韧性和幸福感、生活满意度、积极情感呈显著正相关关系, 与消极情感之间呈显著负相关关系; 两者之间的关系受心理韧性的测量工具、文化背景、文献质量、文献年份、样本量和样本人群年龄的影响。研究结果为心理韧性如何影响老年人幸福感提供了较为精确的估计, 对于提高老年人幸福感进而实现成功老化具有重要意义。