QEEG markers of superior shooting performance in skilled marksmen: An investigation of cortical activity on psychomotor efficiency hypothesis

For elite performers, psychomotor behavior's success or failure can be traced to differences in brain dynamics. The psychomotor efficiency hypothesis suggests refined cortical activity through 1) selective activation of task-relevant processes and 2) inhibition of non-essential processes. The use of electroencephalography (EEG) has been applied to investigate psychomotor performance's neural processes. The EEG markers that reflect an elevation of psychomotor efficiency include left temporal alpha (T3 alpha), frontal midline theta (Fm theta), sensorimotor rhythm (SMR), and the coherence between frontal and left temporal regions. However, the relationship between elite performers' task-relevant and non-essential neural processes is still not well understood. Therefore, this study aimed to explore how each task-relevant and inhibition of non-essential processes contribute to superior psychomotor behavior. Thirty-five highly skilled marksmen were recruited to perform 30 shots in the shooting task while the EEG was recorded. The marksmen were divided into two groups (superior & inferior) based on a median split of shooting performance. The superior group exhibited higher accuracy and precision, with a reduction in movement jerk. EEG measures revealed that the superior group exhibited higher SMR before the trigger pull than the inferior group. In addition, the superior group demonstrated reduced Fz-T3 coherence in their bull's eye shots than the missed shots. These results suggest that the superior group exhibited less effortful engagement of task-relevant processes and lower interference from non-essential cortical regions than the inferior group. The study's overall findings support the psychomotor efficiency hypothesis. When comparing highly skilled performers, the slight differences in brain dynamics ultimately contribute to the success or failure of psychomotor performance.     

Hand Position and Response Assignment Modulate the Activation of the Valence‐Space Conceptual Metaphor

Conceptual metaphor is ubiquitous in language and thought, as we usually reason and talk about abstract concepts in terms of more concrete ones via metaphorical mappings that are hypothesized to arise from our embodied experience. One pervasive example is the conceptual projection of valence onto space, which flexibly recruits the vertical and lateral spatial frames to gain structure (e.g., good is up ‐bad is down and good is right ‐bad is left ). In the current study, we used a valence judgment task to explore the role that exogenous bodily cues (namely response hand positions) play in the allocation of spatial attention and the modulation of conceptual congruency effects. Experiment 1 showed that congruency effects along the vertical axis are weakened when task conditions (i.e., the use of vertical visual cues, on the one hand, and the horizontal alignment of responses, on the other) draw attention to both the vertical and lateral axes making them simultaneously salient. Experiment 2 evidenced that the vertical alignment of participants’ hands while responding to the task—regardless of the location of their dominant hand—facilitates the judgment of positive and negative‐valence words, as long as participants respond in a metaphor–congruent manner (i.e., up responses are good and down responses are bad). Overall, these results support the claim that source domain representations are dynamically activated in response to the context and that bodily states are an integral part of that context.     

感觉运动模拟隐喻理论的形成与发展

感觉运动模拟理论属于概念隐喻理论范畴,是经典概念隐喻理论的最新发展。感觉运动模拟隐喻理论认为概念隐喻的具身效应并不一定要建立在以往的经验之上,与感觉运动信息无关的抽象概念通过快速学习建立的隐喻也具有了具身效应,没有以往经验为基础的抽象概念也能引起感觉运动的模拟。除了感觉运动模拟隐喻理论的主要观点之外,文章还介绍了该理论的形成与发展的过程。并通过与经典概念隐喻理论的对比,提出感觉运动模拟隐喻理论存在的优势与局限性     

伦理与疗愈：先天性唇腭裂患者的疾痛叙事

长久以来,生物医学在疾病疗愈上占据绝对优势,认为疾病是生物分子结构激变或生理激素紊乱造成的结果。美国人类学家凯博文通过对中国精神疾病的田野研究试图证明,身体是社会的身体,疾病是文化的建构。从疾病的社会建构论与疾痛叙事角度出发,以中国医学科学院整形医院整形一科的田野实践为依据,对先天性唇腭裂患者的生活世界绘以深描,从病患的主体经验和体验出发,展现文化如何形塑身体观与疾病观,社会文化逻辑如何影响医学话语实践,以期对如何看待先天性唇腭裂患者,如何减轻先天性唇腭裂患者的疾痛进行反思。     

脑科学与心理学研究

随着现代科技的进步,脑科学特别是脑成像技术能够无损伤地探测人脑,成为脑功能研究的"显微镜".这些科技的发展对心理学研究具有重大影响.它使得意识能够受到真正科学地研究,促使心理学研究从"计算机隐喻"向"脑隐喻"的转变,并将使心理学理论形态更加复杂.     

Ecclesiological Research and Natural and Human Sciences: Some Observations of an Unconventional Phenomenon

This article is motivated by the absence of published material dealing with the rapprochement between ecclesiology and the sciences. It presupposes that there is a need to broaden the scope of ecclesiological research in order to integrate into it theories and methods from the social and natural sciences. Ecclesiological research in this wider sense has as its object, church, as a broad concept. The article suggests a threefold aspect for ecclesiology, conceiving it as the ecclesiology of the researcher, and the ecclesiology of both the object and of the result of the research. Furthermore, its purpose is to identify transparent ecclesiological theories which are able to engage with and integrate scientific theories and methods. An inventory of examples of modes of collaboration used between ecclesiology and different sciences is then offered as an illustration of the context in which ecclesiology may integrate or relate to science in different ways. Finally, the article concludes that there is a need for further clarificatory research into the possibilities which exist for ecclesiology to be made more fully the science of being Christian in community or church.     

影响时空隐喻理解中时间运动视角选择的因素

“自我动”和“时间动”在时空隐喻中常被用来表征时间的运动方式, 代表了人们理解个体与时间相对运动的不同视角。大量研究已证实这两种时间运动视角存在心理现实性。人们对时间运动视角的选择受到空间运动经验、情绪、语言与文化、个体差异等具身因素的影响, 反映了时空隐喻理解中视角选择的灵活性。时间运动视角选择的相关研究不仅有助于我们深入认识语言与思维、情感、运动经验等之间的关系, 同时也为具身认知理论提供了进一步的实验证据。     

抽象概念表征的具身认知观

抽象概念是否通过感知经验来表征以及如何被感知经验表征是具身认知面临的一大问题.在抽象概念表征是否具有感知经验基础的问题上,具身认知理论认为抽象概念通过情境模拟或隐喻与感知经验发生联系.在抽象概念如何与感知经验表征发生联系的问题上,概念模拟理论强调情景或运动模拟在抽象概念表征中的直接作用;概念隐喻理论则侧重具体经验或具体经验与抽象概念之间的共同结构关系在抽象概念表征中的间接作用.未来研究应改变概念表征的稳定的心理实体观,从语言和抽象表征的关系、正常儿童和特殊群体的抽象概念表征差异入手,整合不同的具身认知观点.     

THE METAPHOR OF THE ARCHITECT IN DARWIN: CHANCE AND FREE WILL

In The Variation of Animals and Plants under Domestication, published in 1868, Darwin used the metaphor of the architect to argue in favor of natural autonomy and to clarify the role of chance in his theory of adaptive change by variation and natural selection. In this article, I trace the history of this important heuristic instrument in Darwin's writings and letters and suggest that this metaphor was important to Darwin because it helps him to explain the role of chance, and gives an argument in favor of the free will.     

The Role of Precues in the Preparation of Motor Responses in Humans

The authors investigated how precues about the location of an upcoming target are used by the sensorimotor system to reduce manual reaction time. In 4 experiments, participants (N = 12 in each experiment) pressed a response key as fast as possible when a precued or a nonprecued visual target appeared. Precues remained effective when a visual mask was interposed between the display of the precue and the target (Experiment 1), which suggests that precues act downstream from visual sensory memory. The precue effect was abolished when precues were presented along with a task requiring attention and a verbal response (Experiment 2) but not when presented with a task that required verbal output but had no attention demands (Experiment 3). Those findings indicate that precues must be processed attentively to become effective. When the attention-demanding task was interposed between precue and target display, the precue effect was still abolished (Experiment 4), which suggests that individuals' attention must remain in the precued area until target appearance.