大学生自尊和宽恕的关系:一个有调节的中介模型

采用问卷法对550名大学生进行调查研究,考察自尊对大学生宽恕的影响,同时考察共情在其中的中介作用,以及该过程是否受到特质愤怒的调节。结果表明:(1)大学生自尊与宽恕存在显著的正相关;(2)共情在大学生自尊和宽恕关系中起到完全中介作用;(3)特质愤怒在共情和宽恕之间具有调节效应,特质愤怒越高,共情对宽恕影响越小。     

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。     

Training and transfer effects of long-term memory retrieval training

ABSTRACT

Long-term memory retrieval ability and working memory can share attention control ability. Based on cognitive plasticity, a hypothesis that cognitive training could improve long-term memory retrieval efficiency and that this could transfer to retrieval involving working memory was proposed. 60 undergraduates were randomly assigned to a group of training and an active control group; all the participants completed the same tasks in the same order before and after the training, the tasks included a long-term memory retrieval access task, a intelligence test, a switching task, a working memory updating task, a response inhibition task and an interference control task. The statistics results indicate that cognitive training can improve long-term memory retrieval efficiency and has a transfer effect on working memory updating, interference control and switching ability, but not on response inhibition or intelligence. This reveal the plasticity of long-term memory retrieval and its influence on working memory.     

Concentration-dependent effects of protein phosphatase (PP) inhibitors implicate PP1 and PP2A in different stages of memory formation

Numerous studies have demonstrated roles for protein phosphorylation and for specific kinases in memory formation; however, a role for specific protein phosphatases has not been established. Previous studies using pharmacobehavioral methods to implicate protein phosphatase activity in memory formation have been unable to discriminate between protein phosphatases 1 (PP1) and 2A (PP2A), as available cell-permeable agents generally inhibit both enzyme classes. To address this difficulty the present study exploited differences in the potency of the selective phosphatase inhibitor, okadaic acid, toward PP1 and PP2A. Within the context of a temporally precise animal model of memory, developed using the day-old chick (Gallus domesticus), acute administration of various concentrations of okadaic acid was found to disrupt two temporally distinct stages of memory formation. When administered bilaterally into an area of the chick brain implicated in memory formation, concentrations of okadaic acid known to selectively inhibit PP2A in vitro disrupted memory from 50 min posttraining. Higher concentrations, reported to inhibit both PP2A and PP1 in vitro, produced significant retention deficits from 20 min posttraining. Identical temporally specific effects were also obtained by varying the concentration and time of administration of calyculin A, a phosphatase inhibitor with equal potency toward both enzyme classes. Hence, different phosphatase enzymes may contribute to different stages of the enzymatic cascade believed to underlie memory formation.     

外在特征变化对人像辨认的影响

运用眼动分析法探讨了外在特征变化对人像辨认的影响,即外在特征多少、学习与辨认外在特征的一致性对人像辨认的影响。因变量为人像辨认的反应时、辨别力、注视次数、眼跳幅度。实验表明：学习与辨认的一致性对人像辨认影响显著,外在特征多少对人像辨认影响不显著。     

消费者抱怨行为的比较

不满意购买发生以后,消费者可能采取的抱怨方式并不相同。通过对冰箱、空调和洗衣机行业2966位消费者的问卷调查,采用单因素多变量方差分析方法对消费者抱怨行为进行比较研究,发现直接抱怨的消费者在品牌形象感知、满意度和再次购买倾向上都显著地高于负面口碑和沉默抵制的消费者。继而,运用认知心理学理论对抱怨行为方式的选择及影响进行解释,并指出企业应该鼓励消费者进行直接抱怨。     

学习不良儿童的策略研究

策略作为目标指向的旨在解决问题的心理操作,负责对基本信息加工的执行和控制,影响着个体的学习效果,因而被引入到学习不良领域。对学习不良儿童的策略研究具有重要价值。文章分析和综合了已有研究,阐述了学习不良与策略的关系、学习不良儿童的策略表现以及学习不良儿童策略低下的原因,提出了当前研究中存在的问题以及今后的发展趋势。     

汉—英并列双语者图片命名的重复启动效应

使用图片命名的重复启动范式来考察同一语种内和不同语种间条件下图片的重复呈现对词汇生成的启动效应。结果表明,语种内重复启动显著大于语种间重复启动,汉、英语种内重复启动效应无显著差异;语种间条件下两种语言间的重复启动存在不对称性,汉语—英语的启动大于英语—汉语的启动。实验结果支持词汇/概念分布模型。     

个人—组织匹配的研究现状与展望

个人—组织匹配主要探讨个人和组织之间的相容性以及实现这种相容性的前提和结果。个人与组织可能以附助或补偿的方式形成匹配。尽管在操作指标的选择上,研究者们没有达成共识,但他们的研究结论都同样体现了个人—组织匹配在员工的组织进入、工作态度、离职意向、工作压力、亲社会行为、工作绩效和组织文化培训等方面的管理价值。展望该领域的进一步研究,自我报告的研究方法以及高水平匹配的益处是令人质疑的,匹配的评估指标也亟待明确。     

条件反射性免疫增强的研究进展

综述了国内外研究条件反射性免疫增强的主要成果;介绍了相关实验所使用的刺激物,观测的指标和实验程序;探讨了一些脑区如下丘脑、岛叶皮质,神经通道如交感和迷走神经,多种神经内分泌激素如β-内啡肽、干扰素以及白细胞介素如IL-1等在条件反射性免疫增强中的介导作用