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躯体和面孔是个体情绪表达与识别的重要线索。与面部表情相比,躯体表情加工的显著特点是补偿情绪信息,感知运动与行为信息,及产生适应性行为。情绪躯体与面孔加工的神经基础可能相邻或部分重合,但也存在分离;EBA、FBA、SPL、IPL等是与躯体表情加工相关的特异性脑区。今后应系统研究面孔、躯体及语音情绪线索加工潜在的神经基础,探讨躯体情绪加工的跨文化差异,考察情绪障碍患者的躯体表情加工特点。 相似文献
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本文用系统科学方法分析了化学物致癌机制,化学致癌是一个长期的,多基因,多阶段,多病因过程已被公认,研究者们认为化学致癌系统由基因和非基因因素构成,在此系统中存在若干系统属性,如整体性,综合性,动态性等,医学研究者要在癌症病因,治疗和预防中取得的半功倍成效,就应该科学地运用致癌系统中的这些系统属性。 相似文献
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Pierre Poirier 《Synthese》2006,151(3):477-483
According to Wimsatt, a proper treatment of reduction must distinguish between two types of reductionist activities scientists engage in. One of the benefits of better understanding the nature of reduction, he believes, is that it shows that eliminativism, that is, the elimination of concepts and theories from science, is a rather circumscribed and limited affair, especially in the case of inter-level reductionist activities. While I agree with Wimsatt that it is important to distinguish the two types of reductionisms, I show that elimination in inter-level reductionist activities can be a powerful heuristic in science, driving both inter-level and successional reduction. 相似文献
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It is incontestable that high motor performance requires an optimal coupling between perception and action. In sports as well as in professional tasks, the Quiet Eye (QE) – defined as the final fixation before movement initiation – has been found to explain a considerable amount of variance in motor performance and expertise. In the current series of studies, the underlying mechanisms of this perception-action variable were further investigated by testing predictions of the inhibition hypothesis. According to the inhibition hypothesis, the functionality of the QE is to shield movement parametrization. By manipulating the demands during response selection (Experiment 1 and Experiment 2) and movement control (Experiment 2) in a far-aiming task, it was found that – in line with the predictions – QE duration increased with increasing inhibition demands. This effect was mainly driven by the similarity rather than the number of possible actions. Moreover, the relation between inhibition demands and QE-duration were sustained through both response selection and movement control, which is perfectly in line with the notion of a continuous perception-action cycle in motor behavior. In sum, these findings corroborate the inhibition function as an integral component within a cognitive understanding of the QE phenomenon. 相似文献
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能源短缺是人类面临的重要课题,节约能源是人类需要采取的刻不容缓的行动。仅仅依赖金钱刺激很难解决能源浪费问题,而心理与行为科学可以发挥重要作用。本文梳理了应用行为决策的经典理论(如,安于现状偏差、决策双系统模型、参照点效应、框架效应和社会规范等)促进节能行为的研究成果,同时总结了诸如情绪、认知对象特点、信息呈现等影响个体节能行为的因素,最后从开展本土化研究、研究方式改进和拓展应对措施的角度对未来研究提出建议。希望本文能给心理学研究者一定的借鉴和启发,在节能管理领域做出更有价值的研究,以最终提高民众节能意识、增加民众节能行为。 相似文献
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Generalisation: mechanistic and functional explanations 总被引:1,自引:0,他引:1
Cheng K 《Animal cognition》2002,5(1):33-40
An overview of mechanistic and functional accounts of stimulus generalisation is given. Mechanistic accounts rely on the
process of spreading activation across units representing stimuli. Different models implement the spread in different ways,
ranging from diffusion to connectionist networks. A functional account proposed by Shepard analyses the probabilistic structure
of the world for invariants. A universal law based on one such invariant claims that under a suitable scaling of the stimulus
dimension, generalisation gradients should be approximately exponential in shape. Data from both vertebrates and invertebrates
so far uphold Shepard's law. Some data on spatial generalisation in honeybees are presented to illustrate how Shepard's law
can be used to determine the metric for combining discrepancies in different stimulus dimensions. The phenomenon of peak shift
is discussed. Comments on mechanistic and functional approaches to generalisation are given.
Accepted after revision: 10 September 2001
Electronic Publication 相似文献
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Forms of emergent interaction in General Process Theory 总被引:2,自引:0,他引:2
Johanna Seibt 《Synthese》2009,166(3):479-512
General Process Theory (GPT) is a new (non-Whiteheadian) process ontology. According to GPT the domains of scientific inquiry
and everyday practice consist of configurations of ‘goings-on’ or ‘dynamics’ that can be technically defined as concrete,
dynamic, non-particular individuals called general processes. The paper offers a brief introduction to GPT in order to provide ontological foundations for research programs such as interactivism
that centrally rely on the notions of ‘process,’ ‘interaction,’ and ‘emergence.’ I begin with an analysis of our common sense
concept of activities, which plays a crucial heuristic role in the development of the notion of a general process. General
processes are not individuated in terms of their location but in terms of ‘what they do,’ i.e., in terms of their dynamic
relationships in the basic sense of one process being part of another. The formal framework of GPT is thus an extensional
mereology, albeit a non-classical theory with a non-transitive part-relation. After a brief sketch of basic notions and strategies
of the GPT-framework I show how the latter may be applied to distinguish between causal, mechanistic, functional, self-maintaining,
and recursively self-maintaining interactions, all of which involve ‘emergent phenomena’ in various senses of the term. 相似文献
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Correcting patients' faulty beliefs concerning social evaluative threats is the hallmark of cognitive-behavioral treatment of social anxiety disorder. The current study examined the efficacy of two videotape feedback procedures as adjuncts to exposure-based treatment. Participants suffering from social phobia (N=77) were randomly assigned to one of four conditions: (a) credible placebo treatment (PLA); (b) exposure + no feedback (EXP); (c) exposure + videotape feedback of performance (PER); or (d) exposure + videotape feedback of audience responses (AUD). Contrary to prediction, the videotape feedback procedures did not enhance the effects of exposure-based treatment. Clinical and theoretical implications are discussed. 相似文献
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