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81.
驾驶员“视而不见”错误是指驾驶员的视线虽然指向道路上的危险目标, 却没有知觉到其存在, 对交通安全构成威胁。本文首先在注意计算框架内, 分别从“自下而上”和“自上而下”两种加工机制探讨诱发驾驶员“视而不见”错误的主要因素, 该框架解释力不足的原因在于没有充分考虑实践经验和动机对驾驶员预期和注意定势的影响。由此提出注意计算框架扩展模型, 通过“自下而上”和“自上而下”的交互作用机制对驾驶员“视而不见”错误提出综合解释。  相似文献   
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We present a framework for expressing various merging operators for belief sets. This framework generalises our earlier work on consistency-based belief revision and contraction. Two primary merging operators are identified: in the first approach, belief sources are consistently combined so that the result of merging knowledge bases K1,…,Kn is a maximal consistent (if possible) set of formulas comprising the joint knowledge of the knowledge bases. This approach then accords with one's intuitions as to what a “merge” operator should do. The second approach is more akin to a generalised belief revision operator. Knowledge bases K1,…,Kn are “projected” onto another (in the simplest case the knowledge base where only tautologies are known). Properties of these operators are investigated, primarily by comparing their properties with postulates that have been identified previously in the literature. Notably, the approach is independent of syntax, in that merging knowledge bases K1,…,Kn is independent of how each Ki is expressed. As well, we investigate the role of entailment-based and consistency-based integrity constraints, the interrelationships between these approaches and belief revision, and the expression of further merging operators.  相似文献   
84.
知觉负载、注意定势与选择性注意   总被引:2,自引:0,他引:2  
吕建国  王凌  周晓林 《心理科学》2007,30(3):558-563
本研究采用Eriksen Flanker(侧抑制)范式,将当前任务区分为高、低知觉负载两种条件.并系统操纵边缘视野干扰项与中央靶子的不同加工层次关系,从而考察注意选择的知觉负载理论。实验一发现,高知觉负载情况下没有任何flanker冲突效应,而低知觉负载情况下既有知觉层次和反应层次的冲突效应,也有一致条件下的促进效应。实验二增加了一致条件试次的比例,从而操纵自上而下的注意定势,发现高、低知觉负载情况下都存在知觉冲突效应和一致条件下的促进效应。这些发现表明,对任务无关信息的加工既受到任务相关信息的知觉负载和剩余加工资源的分配的影响,也受到自上而下注意定势的影响;自下而上和自上而下过程相互作用,共同决定加工资源的分配和注意选择的认知阶段。  相似文献   
85.
注意瞬脱的瓶颈理论   总被引:2,自引:0,他引:2  
综述了注意瞬脱的瓶颈理论的相关研究。主要包括:(1)高级中枢加工瓶颈形成的两阶段模型、中枢干扰理论、TLC假设和注意的延迟投入假设;(2)目标选择的控制瓶颈形成的输入过滤器与目标模板假说;(3)同时类型系列标记模型。最后从瓶颈理论在整个注意瞬脱理论中的片面性和注意瞬脱的瓶颈理论本身的不完善性两方面剖析了瓶颈理论的局限性  相似文献   
86.
John Polkinghorne 《Zygon》2000,35(4):927-940
This account of the dynamical theory of chaos leads to a metaphysical picture of a world with an open future, in which the laws of physics are emergent-downward approximations to a more subtle and supple reality and in which there is downward causation through information input as well as upward causation through energy input. Such a metaphysical picture can accommodate both human and divine agency.  相似文献   
87.
For classical sets one has with the cumulative hierarchy of sets, with axiomatizations like the system ZF, and with the category SET of all sets and mappings standard approaches toward global universes of all sets.We discuss here the corresponding situation for fuzzy set theory. Our emphasis will be on various approaches toward (more or less naively formed) universes of fuzzy sets as well as on axiomatizations, and on categories of fuzzy sets.What we give is a (critical) survey of quite a lot of such approaches which have been offered in the last approximately 35 years.Part I was devoted to model based and to axiomatic approaches; the present Part II is devoted to category theoretic approaches.This paper is a version of the invited talk given by the author at the conference Trends in Logic III, dedicated to the memory of A. MOSTOWSKI, H. RASIOWA and C. RAUSZER, and held in Warsaw and Ruciane-Nida from 23rd to 25th September 2005.  相似文献   
88.
执行功能子成分与学业成就的关系   总被引:3,自引:0,他引:3  
目的:探讨执行功能三个子成分(抑制功能、转换功能和信息刷新功能)与学业成就的关系。方法:采用认知任务对85名大学生的执行功能子成分进行测量,并进行执行功能子成分的Stroop效应、转换任务效应及信息刷新任务效应对学业成就的逐步回归分析。结果:抑制子功能的Stroop效应及信息刷新子功能的任务效应对学业成就具有负向预测作用,两者共同解释学业成就变异的15.1%。其中,抑制子功能的Stroop效应预测作用最大,可解释学业成就变异的8.5%。结论:执行功能抑制子功能的Stroop效应及信息刷新子功能的任务效应可作为学业成就的预测因子。  相似文献   
89.
Contemporary accounts of logic and language cannot give proper treatments of plural constructions of natural languages. They assume that plural constructions are redundant devices used to abbreviate singular constructions. This paper and its sequel, “The logic and meaning of plurals, II”, aim to develop an account of logic and language that acknowledges limitations of singular constructions and recognizes plural constructions as their peers. To do so, the papers present natural accounts of the logic and meaning of plural constructions that result from the view that plural constructions are, by and large, devices for talking about many things (as such). The account of logic presented in the papers surpasses contemporary Fregean accounts in its scope. This extension of the scope of logic results from extending the range of languages that logic can directly relate to. Underlying the view of language that makes room for this is a perspective on reality that locates in the world what plural constructions can relate to. The papers suggest that reflections on plural constructions point to a broader framework for understanding logic, language, and reality that can replace the contemporary Fregean framework as this has replaced its Aristotelian ancestor.  相似文献   
90.
The behavioral assessment of parent-child interactions is an important component of treatment planning and evaluation in many evidence-based parent training programs. However, numerous factors unrelated to the parent-child interaction may add error to the assessment. This study investigated the impact of task instructions on parents’ behaviors during the analogue parent-child interaction observation, the Dyadic Parent-Child Interaction Coding System (DPICS). Forty-eight mother-child dyads were randomly assigned to one of two conditions that differed on level of specificity of instructions. Significant differences were observed between groups, with parents who received specific instructions using more praises during the DPICS tasks. Specific instructions may shift parents’ behaviors toward optimal, rather than typical, interaction patterns and should be considered in the context of the assessment goals.  相似文献   
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