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.     

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。     

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.     

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 CHRISTIAN'S DILEMMA: ORGANICISM OR MECHANISM?

Is organicism inherently Christian‐friendly, and for that matter, is mechanism inherently religion nonfriendly? They have tended to be, but the story is much more complicated. The long history of the intertwined metaphors of nature taken as an organism, versus that of nature as a machine, reveals that both metaphors have flourished in the endeavors of philosophers, scientists, and persons of faith alike. Different kinds of Christians have been receptive to both organicist and mechanistic models, just as various kinds of nonreligious scientists have been receptive to both holistic and machine metaphors. Although, it is true, organicism has been generally more attractive to persons of faith than mechanism (and vice versa), an overview of the rich and varied history of allegiances to these metaphors—religious and nonreligious alike—shows that debate is much more interesting and complex. A brief inspection of conversation surrounding recent scientific discoveries shows that this debate between metaphors is still very much alive today.     

语言和情境对具体概念感知运动仿真的影响

具体概念加工中的感知运动仿真是概念表征的核心加工过程。本研究系统探讨了语言因素(语言类型：第一语言和第二语言)和情境因素(知觉情境：空间知觉情境和语义知觉情境)对具体概念加工中感知运动仿真的影响。实验1采用语义相关判断范式探讨了第二语言加工过程中是否存在感知运动仿真, 以及第二语言中的仿真和第一语言中的仿真是否存在差异。研究发现, 第二语言加工中依然存在感知运动仿真, 但是第一语言的感知运动仿真具有一定的优势。实验2采用语义相关判断范式及其变式, 通过2个分实验分别探讨了个体加工概念时空间知觉信息和语义知觉信息对于概念表征过程中感知运动仿真的影响。研究发现, 无论是在较弱的空间信息知觉条件下还是在较浅的语义信息知觉条件下, 具体概念加工过程中都产生了感知运动仿真。本研究的发现弥补了知觉符号理论未对第二语言中的感知运动仿真提出针对性预测的不足, 表明感知运动仿真具有一定的跨语言稳定性。同时, 具体概念加工中的感知运动仿真不受空间信息和语义信息的调节, 这表明感知运动仿真能在一定程度上自动化产生。     

Sexual metaphor and the language of unconscious phantasy

This paper investigates the attempt to find a 'bedrock' for psychic life in the idea of unconscious phantasy. Through a detailed examination of the development of the concept of unconscious phantasy, especially in Kleinian discourse, it is argued that unconscious phantasies are inherently metaphorical and have no 'concrete' existence in the unconscious. The use of unconscious phantasy as metaphor enables a 'two-way' form of interpretation that describes sexual behaviour and fantasy in terms of object relations (interpreting 'away from sex', while simultaneously describing object relations in terms of the sexual body (interpreting 'towards sex').     

Clocks,Creation and Clarity: Insights on Ethics and Economics from a Feminist Perspective

This essay discusses the origins, biases, and effects on contemporary discussions of economics and ethics of the unexamined use of the metaphor an economy is a machine. Both neoliberal economics and many critiques of capitalist systems take this metaphor as their starting point. The belief that economies run according to universal laws of motion, however, is shown to be based on a variety of rationalist thinking that – while widely held – is inadequate for explaining lived human experience. Feminist scholarship in the philosophy of science and economics has brought to light some of the biases that have supported the mechanistic worldview. Possible alternatives to the an economy is a machine include an economy is a creative process and an economy is an organism. Such metaphors are intellectually defensible as guides to scientific inquiry and provide a richer ground for moral imagination.     

A review of processing and analysing visual metaphors in psychology

IntroductionA visual metaphor is an image depicting an incongruity in the spatial distribution of visual elements, which is not consistent with reality. In this paper, we present an overview of theoretical and empirical studies on visual metaphor processing.ObjectiveFirstly, attention is given to the spatial distribution of visual elements, which defines the type of visual metaphors as well as the meaning operations required to understand the communicative message. The paper then reviews several empirical studies that collect behavioural measures for assessing visual metaphor processing using questionnaires and exploring the role played by cognitive abilities. In line with the contemporary literature, we then present three semiotic dimensions for visual metaphor processing, namely the expression, conceptualisation, and communication. We then present a pilot study that focusses on these three dimensions. Few research studies have collected behavioural data for visual metaphors processing. This may be due to the lack of theoretical framework in the corresponding field of research. These three semiotic dimensions highlight the value of pursuing research on visual metaphors in the scope of psychology. The presented pilot study could be a starting point for the investigation of visual metaphors in the framework of psychology.ConclusionWe propose future avenues of research that consider the visual structure of metaphors and meaning operations while assessing the influence of cognitive abilities in visual metaphor processing.     

Premonitory urges are associated with decreased grey matter thickness within the insula and sensorimotor cortex in young people with Tourette syndrome

Tourette syndrome (TS) is a neurological disorder characterized by vocal and motor tics and is associated with cortical–striatal–thalamic–cortical circuit (CSTC) dysfunction and hyperexcitability of cortical limbic and motor regions, which are thought to lead to the occurrence of tics. Importantly, individuals with TS often report that their tics are preceded by ‘premonitory sensory phenomena’ (PSP) that are described as uncomfortable cognitive or bodily sensations that precede the execution of a tic, and are experienced as a strong urge for motor discharge. While the precise role played by PSP in the occurrence of tics is controversial, PSP are nonetheless of considerable theoretical and clinical importance in TS, not least because they form the core component in many of the behavioural therapies that are currently used in the treatment of tic disorders. In this study, we investigated the brain structure correlates of PSP. Specifically, we conducted a whole‐brain analysis of cortical (grey matter) thickness in 29 children and young adults with TS and investigated the association between grey matter thickness and PSP. We demonstrate for the first time that PSP are inversely associated with grey matter thickness measurements within the insula and sensorimotor cortex. We also demonstrate that grey matter thickness is significantly reduced in these areas in individuals with TS relative to a closely age‐ and gender‐matched group of typically developing individuals and that PSP ratings are significantly correlated with tic severity.