言语工作记忆对视觉工作记忆的影响

工作记忆是当前认知心理学中的一个研究热点,而其言语子系统与视觉子系统之间的关系又是一个颇具争论性的问题。实验1、2采用双任务范式考察了言语工作记忆对视觉工作记忆的影响。结果发现,满负荷言语负载条件下的视觉记忆的成绩显著低于无言语负载条件。这表明,言语工作记忆影响了视觉工作记忆任务的完成。     

视觉工作记忆中的加工与存储机制:回顾与思考

在视觉工作记忆的研究中,是否可能划分出视觉空间工作记忆和视觉物体工作记忆两个子系统还没有定论.子系统划分成立的基本前提是以特征为存储单位.当前关于存储单位的理论有特征理论、客体理论和双重存储等不同观点,多数视觉信息加工与存储机制的研究支持双重存储说.注意与视觉信息的加工和存储相互影响,因此,加工及存储机制的研究就要在具体的注意水平上进行.     

A comparison of backward and forward spatial spans

The standard Corsi blocks task is frequently used to measure the capacity of visuospatial working memory, but the implications of the use of both forward and backward recall are still unclear. In the present study, we showed that the backward Corsi task is particularly powerful in discriminating between low- and high-spatial-ability individuals and involves different processes from those involved in the forward task. From a sample of 425 participants we selected one group of 20 high-spatial-ability participants and one of 20 low-spatial-ability participants. The results demonstrated that a backward spatial span offers specific information not available from a forward spatial span, and that there was no facilitation due to a descending format. In particular, in the low-spatial-ability group, performance was generally poorer, but backward Corsi recall was lower than forward recall, and participants did not show any advantage following the descending presentation format—which in some contexts is considered to reduce proactive interference. We conclude that the backward Corsi task has specific value and that the assumption of fully parallel verbal and visuospatial working-memory systems can lead to a variety of misunderstandings.     

A Work-Life Identity Model of Well-Being: Towards a Research Agenda Linking Quality-of-Work-Life (QWL) Programs with Quality of Life (QOL)

QWL is conceptualized in terms of the interface between employee role identities and work resources. QWL programs serve to enhance QOL by (1) providing appropriate work resources to meet the expectations of employee role identities, (2) reducing role conflict in work and non-work life, (3) enhancing multiple role identities, (4) reducing role demands, (5) reducing stress related to work and non-work role identities, and (6) increasing the value of the role identity. We describe a variety of QWL programs related to work life (decentralized organization structures, teamwork, parallel structures, ethical corporate mission and culture, the organization work schedule, etc.) and non-work life (work at home, flextime, compressed work week, part-time work arrangements, job sharing, etc.) and show how they serve to enhance QOL using the language of work-life identity. Doing so helps develop a research agenda based on the work-life identify model.     

A computational model of spatial visualization capacity

Visualizing spatial material is a cornerstone of human problem solving, but human visualization capacity is sharply limited. To investigate the sources of this limit, we developed a new task to measure visualization accuracy for verbally-described spatial paths (similar to street directions), and implemented a computational process model to perform it. In this model, developed within the Adaptive Control of Thought-Rational (ACT-R) architecture, visualization capacity is limited by three mechanisms. Two of these (associative interference and decay) are longstanding characteristics of ACT-R’s declarative memory. A third (spatial interference) is a new mechanism motivated by spatial proximity effects in our data. We tested the model in two experiments, one with parameter-value fitting, and a replication without further fitting. Correspondence between model and data was close in both experiments, suggesting that the model may be useful for understanding why visualizing new, complex spatial material is so difficult.     

身份凸显性：启动自我的开关

当意识到自己特定的身份时, 个人往往在这个身份的框架内来感知周围的世界。身份凸显性指特定身份在社会情境中启动的可能性。相关研究者分别从人格, 自我归类和社会建构的角度来认识身份凸显性, 它与自我概念整合存在紧密关系。身份凸显性的影响因素主要包括：身份承诺水平, 情绪, 群体规模和地位, 以及情境中相关线索的优势水平。另外, 阐述了几个抑制或干扰身份凸显性的策略：去类别化、再类别化和次类别化。未来研究需关注不同水平身份如何相互作用, 自我概念整合, 从社会构建的角度探索抑制或干扰身份凸显性的策略, 以及跨文化研究。     

客体工作记忆任务中大脑皮层活动的记忆负荷效应

利用128导事件相关电位技术,采用延迟匹配任务的实验范式,测查了20名正常被试完成不同负荷客体任务时的皮层慢电位（slow cortical potentials,简称sp成分）,实验发现：背侧前额叶在刺激呈现后的700ms到1400ms出现记忆负荷效应,高负荷任务诱发的sp成分显著负于低负荷任务;低负荷任务诱发的sp成分在左前额区（500~1800ms）、左前额-中央区（700~1800ms）、左中央-顶叶区（1000~1400s和1800~4800ms）、右前额区（1800~4800ms）和右前额-中央区（1400~4800ms）显著负于高负荷任务,出现记忆负荷效应,但这种负荷效应在左右大脑半球所反映的心理意义可能不同     

Culture and the Development of Self-Knowledge

ABSTRACT— Although a great deal of work in the past decades has shown cultural variations in self-knowledge among adults, not until recently have researchers started to examine developmental processes and mechanisms that give rise to the variations. I discuss our research on the development of two kinds of self-knowledge: autobiographical memory and self-concept. Our findings indicate that children develop culture-specific self-knowledge early in life; the two kinds of self-knowledge reinforce each other at both individual and cultural levels; and early narrative practices constitute an important resource from which children draw cultural views about the self to incorporate into their self-understanding and remembering.     

学校归属感与学生发展的探索研究

采用问卷调查法探讨中小学生的学校归属感与学校适应、自我概念、同伴关系及班级环境的关系。结果表明:1)学校适应、自我概念、同伴关系和班级环境与中小学生的学校归属感有密切的关系;2)学校归属感能有效的预测学生的自我概念;3)师生关系和同伴关系对学校归属感有重要影响,是学校归属感显著的预测变量;4)学校类型对学校归属感有显著的影响,重点中学学生的学校归属感显著高于其他类型学校的学生。     

工作记忆对类比推理的影响

该实验采用2(类比推理类型)×6(组别)双因素实验设计来探讨工作记忆与类比推理之间的关系,尤其关注工作记忆的各个子成分对类比推理的影响。控制组的被试只需完成类比推理测验,而实验组的被试是在双任务的条件下进行实验。结果表明,工作记忆是影响类比推理的一个重要因素。在图形类比推理中,主要有视空间模板中的空间成分,语音回路中的发音成分以及中央执行器的参与;在言语类比推理中,则是视空间模板中的空间成分起主要作用。