幼儿自豪的非言语行为表达编码系统编制

选取352名幼儿教师,对与幼儿自豪的非言语行为表达相关的2套图片进行识别.旨在确定幼儿自豪的非言语行为表达的动作成分和动作单元,并以此为基础编制编码系统.结果表明:(1)幼儿自豪的非言语行为表达包括4个方面7个动作成分,即Ⅰ微笑和大笑的面部表情,Ⅱ舒展的身体姿势,Ⅲ头稍微后倾的头部动作,Ⅳ双手叉腰、高举和在胸前握拳的手臂动作;(2)幼儿自豪的非言语行为表达包括12个动作单元;(3)幼儿自豪的非言语行为表达编码系统具有较高的信度和效度,可以作为测评幼儿自豪发展的工具.     

Are sensorimotor experiences the key for successful early intervention in infants with congenital brain lesion?

Living with a congenital brain lesion may have detrimental effects on the ability to do everyday activities, but contrary to acquired brain lesions, people and in particular children, with congenital brain lesions may have limited or no experience of how their bodies work. This absence of experience gives rise to challenges for habilitation of sensorimotor abilities and derived cognitive abilities. How can motor and cognitive abilities be achieved and trained in an individual with no experience of potential abilities? In this article, we aim to review the existing knowledge about the development of sensorimotor integration. Further, we will discuss this knowledge in the light of two neurocognitive theories: embodied cognition and predictive coding. Moreover, using developmental knowledge and theory in combination, we will argue that early sensorimotor development serves as a foundation for later cognitive development. Finally, we try to use these elements in a strategy to make interventions as early as possible, with the purpose of improving sensorimotor and cognitive abilities in children with congenital brain lesions.     

The effect of running speed on joint coupling coordination and its variability in recreational runners

The purpose of this study was to examine the effect of speed on coordination and its variability in running gait using vector coding analysis. Lower extremity kinematic data were collected for thirteen recreational runners while running at three different speeds in random order: preferred speed, 15% faster and 15% lower than preferred speed. A dynamical systems approach, using vector coding and circular statistics, were used to quantify coordination and its variability for selected hip-knee and knee-ankle joint couplings. The influence of running speed was calculated from the continuous data sets of the running cycle, allowing for the identification of time percentages where differences existed. Results indicate that increases in running speed produced moderate alterations in the frequency of movement patterns which were not enough to alter classification of coordination. No effects of speed on coordination variability were observed. This study has demonstrated that coordination and coordination variability is generally stable in the range of ±15% around of preferred speed in recreational runners.     

中文阅读中词汇视觉编码的年龄特征：来自眼动研究的证据

研究以小学三年级、小学五年级、大学生和老年读者为对象,采用消失文本范式,通过操作注视词消失的延迟时间,考察了不同年龄阶段读者对注视词进行视觉编码的过程.结果发现:(1)注视词延迟消失严重影响小学三年级和老年人的总阅读时间,但对小学五年级和大学生读者总阅读时间的影响不显著;(2)注视词消失不影响小学五年级、大学生和老年读者基于词的平均凝视时间,但影响小学三年级读者的平均凝视时间;(3)所有消失条件都不影响大学生被试的基于词的回视次数,但严重影响小学三年级、小学五年级和老年读者的回视次数.这些结果表明,中文阅读过程中,对注视词的视觉编码能力在小学五年级阶段已趋于成熟,但进入老年阶段出现老化;视觉编码的保持在儿童词汇识别的中后期加工阶段中仍起到一定作用.     

人际情境对幼儿联合Simon效应的影响机制

联合Simon效应是考察幼儿共同表征能力的一个有效指标,本研究采用联合Simon任务范式通过两个实验考察幼儿联合Simon效应稳定产生的年龄阶段以及不同人际情境对该效应的影响机制。实验1首先以3个年龄段幼儿为研究对象来考察幼儿联合Simon效应产生的年龄阶段,以揭示共同表征能力的发生发展趋势。实验2在实验1基础上以出现稳定联合Simon效应的5岁幼儿为研究对象,进一步考察该能力水平是否受到人际情境的影响及背后的机制。结果表明,与3岁相比,4岁幼儿开始出现联合Simon效应,但尚不稳定,5岁幼儿的联合Simon效应达到更加稳定水平;不同人际情境对幼儿的共同表征能力产生影响,相较合作情境,竞争情境对幼儿联合行动的共同表征能力有抑制作用。本研究结果很好地支持了参考编码理论,并拓宽了对共同表征理论的理解。     

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。     

高中生化学问题解决思维过程口语报告编码分析

将高中生化学问题解决思维过程口语报告分为相应的10个行为指标进行人工编码和定量分析。被试是56名高中生,材料为6个中等难度的化学问题,通过“出声思考”实验,记录口语报告,并对口语报告进行编码和数据统计分析,结果发现:(1)高中优生的重复、解释、推理、归纳、总结等行为指标上明显优于中等生;(2)在解决不同类型的化学问题时,重复、设问、推理、归纳和反思等指标存在明显差异;(3)学生能力层次与问题类别在重复、推理、归纳和试误等行为指标上存在明显交互作用。     

Incongruent imagery interferes with action initiation

It has been suggested that representing an action through observation and imagery share neural processes with action execution. In support of this view, motor-priming research has shown that observing an action can influence action initiation. However, there is little motor-priming research showing that imagining an action can modulate action initiation. The current study examined whether action imagery could prime subsequent execution of a reach and grasp action. Across two motion analysis tracking experiments, 40 participants grasped an object following congruent or incongruent action imagery. In Experiment 1, movement initiation was faster following congruent compared to incongruent imagery, demonstrating that imagery can prime the initiation of grasping. In Experiment 2, incongruent imagery resulted in slower movement initiation compared to a no-imagery control. These data show that imagining a different action to that which is performed can interfere with action production. We propose that the most likely neural correlates of this interference effect are brain regions that code imagined and executed actions. Further, we outline a plausible mechanistic account of how priming in these brain regions through imagery could play a role in action cognition.     

Rival Methodologies in Emergence Theory: A Non-Dual Approach

Jason Roberts proposes that Karl Rahner's theology of nature serves as an appropriate dialogue partner for natural scientists like Terrence Deacon in his naturalistic approach to the emergence of higher-order levels of existence and activity within the natural sciences. Yet Rahner and Deacon employ different understandings of formal causality in their respective approaches to evolutionary theory: for Rahner, causal agency vis-à-vis constituents; for Deacon, objective constraint on the agency of constituents. Yet a compromise position may be available based on a modest revision of the relationship between societies and their constituent actual entities in A.N. Whitehead's cosmology.