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1.
关联启发式是指在累积变量判断中, 将存量与流量建立正相关关系, 认为存量变化特征与流量变化特征具有相似性而导致判断偏差的思维模式。在多特征交互及简单动态系统任务判断中, 关联启发式偏差以不同形式的S-F错误表现出来。作为一种内生性的、顽固的思维模式, 对于关联启发式的心理机制提出了客体偏差、特征替代、不充分调整等多种观点解释。影响关联启发式的个体因素和情境因素的研究结果不尽一致。由于关联启发式偏差直接影响人对复杂系统的可持续性决策和行动, 减少偏差策略的研究也已实现起步。本文系统总结和分析了关联启发式研究的发展脉络, 针对澄清关联启发式的发生机制、系统考察关联启发式的影响因素及其相互作用、丰富和深化关联启发式的研究范式、开发减少关联启发式的有效途径等方面, 提出了深化研究的方向和思路。  相似文献   

2.
随着发展认知神经科学的兴起, 研究者借助脑成像等技术探讨了发展性障碍儿童的脑结构发育特点, 发展缺陷与脑功能损伤的关系以及障碍干预和脑功能改善的机制等, 这为揭示发展性障碍儿童异常神经机制的共性和特异性, 进而为早期诊断和干预提供了重要的生物学标记。针对儿童期常见的发展性障碍, 从脑结构损伤、脑激活异常、脑网络连接和脑功能康复等方面对相关研究进行了总结, 指出未来研究应拓展角度, 注重揭示各发展性障碍之间异常脑发育特点的共性和特异性的具体表现、病理机制及基因基础等; 临床工作者应注重将脑发育的异常和功能改善用于辅助各类障碍的早期识别和干预效果评估。  相似文献   

3.
以往研究发现工作场所中他人感知的员工工作-家庭冲突对员工工作结果具有重要影响, 但相关研究处于起步阶段。在文献回顾的基础上, 从刻板印象理论出发, 提出可能影响他人感知员工工作-家庭冲突的工作、家庭相关因素; 采用能力-热情维度框架探讨他人感知员工工作-家庭冲突的作用机制及其结果。今后研究可在整合工作-家庭冲突研究和刻板印象理论的基础上, 对他人感知员工工作-家庭冲突的形成及人际效用机制等方面进行拓展。  相似文献   

4.
针灸早期介入出血性中风治疗的困惑与思考   总被引:1,自引:0,他引:1  
针对国内外在针灸早期介入出血性中风治疗方面的现状与分歧,以及给针灸临床工作者的带来的困惑,提出自己的一些思考。认为,临床研究标准化、规范化,发挥群体作用,开展国际合作,形成统一的临床研究规程,才能促进针灸疗法的发展。  相似文献   

5.
The purpose of this study was to examine effects of d-amphetamine on choice controlled by reinforcement delay. Eight pigeons responded under a concurrent-chains procedure in which one terminal-link schedule was always fixed-interval 8 s, and the other terminal-link schedule changed from session to session between fixed-interval 4 s and fixed-interval 16 s according to a 31-step pseudorandom binary sequence. After sufficient exposure to these contingencies (at least once through the pseudorandom binary sequence), the pigeons acquired a preference for the shorter reinforcement delay within each session. Estimates of the sensitivity to reinforcement immediacy were similar to those obtained in previous studies. For all pigeons, at least one dose of d-amphetamine attenuated preference and, hence, decreased estimates of sensitivity to reinforcement immediacy; in most cases, this effect occurred without a change in overall response rates. In many cases, the reduced sensitivity to reinforcement delay produced by d-amphetamine resulted primarily from a decrease in the asymptotic level of preference achieved within the session; in some cases, d-amphetamine produced complete indifference. These findings suggest that a reduction in the sensitivity to reinforcement delay may be an important behavioral mechanism of the effects of psychomotor stimulants.  相似文献   

6.
员工主动行为因有利于个人和组织的长远发展而受到学界和业界的广泛关注。以往的研究主要关注主动行为对员工本人的人际内影响,而较少考虑对领导者的人际间影响;同时,考虑到员工在领导过程中扮演的重要角色,对员工的主动行为如何影响领导的心理与行为反应做理论性整理将极大丰富对员工主动行为的认识。学界基于归因理论、内隐追随理论、自我-他人评价一致性理论等对上述自下而上的影响过程进行了初步探索,发现领导者对员工主动行为的态度评价和行为反应受到多重边界条件的影响。未来研究可具体化员工主动行为所诱发的领导者心理与行为反应,探索员工主动行为与领导方式的循环关系,以及深挖主动行为与绩效评价之间的内在机理。  相似文献   

7.
随着“全球老龄化”时代的到来, 老年人认知功能的下降引起了研究人员的广泛关注, 其中年老化对决策的影响成为了近年来的一个新关注点。风险决策和模糊决策受生理性老化和病理性老化影响的研究显示, 正常老化个体模糊决策能力受损, 但其风险决策能力受老化影响较小; 而病理性老化个体, 以阿尔兹海默症患者为例, 在两类决策行为上均表现出损伤; 此外, 脑神经机制的研究发现在完成决策任务时正常年老化个体纹状体激活模式与年轻人存在显著差异, 病理性老化个体杏仁核与腹内侧前额叶的功能连接亦存在异常。未来的研究应同时考察并比较两类决策类型, 结合外周和中枢神经证据, 深入探讨老化对决策行为及神经环路造成影响的机制。  相似文献   

8.
When trains pass level-crossings, turnouts, and rail joints, they are momentarily subjected to extreme vibrations. In railway engineering, evaluation of the riding comfort under such occasional vibrations is called the momentary riding comfort evaluation, as distinct from the long-term evaluation, which addresses the riding comfort of passengers for certain lengths of train operation. In order to identify the effective vibrational characteristics of the momentary evaluation, an experiment was performed with a riding comfort simulator. Ten adult subjects for each condition, 80 in total, participated in the experiment. The effects of differences in the range of stimuli, frequency of each stimulus, and scores on a rating scale of discomfort were studied. Differences in the range and frequency affected the evaluation such that subjects tended to make a relative judgment on discomfort. They made almost an absolute judgment when the rating scale was well defined, with a small number of categories.  相似文献   

9.
Russell’s letter to Frege of June 16, 1902 contains the famous paradox of the class of all classes which are not members of themselves as well as a second paradox of the predicates that cannot be predicated of themselves. The latter paradox arises out of Russell’s theory of classes and class concepts in Principles of Mathematics.  相似文献   

10.
儿童早期是母亲消极情绪和行为的易感期,母亲抑郁和消极的教养行为可能导致儿童早期多方面的发展问题,而父亲的积极教养则可能对孩子的健康发展起到保护作用。本研究以184名学前儿童的父亲和母亲为被试,考察母亲抑郁情绪和惩罚行为对儿童问题行为的影响及作用机制,以及父亲积极鼓励在其中的调节作用。结果发现:(1)母亲抑郁显著预测儿童的内向问题行为,母亲惩罚显著预测内向和外向问题行为;(2)母亲抑郁完全通过其惩罚行为影响儿童的外向问题行为,部分通过惩罚影响儿童的内向问题行为;(3)父亲积极鼓励显著调节母亲抑郁对外向问题行为的影响,边缘显著调节母亲抑郁对内向问题行为的影响;父亲积极鼓励对母亲惩罚与内、外向问题行为之间的关系的调节不显著,表明积极的父亲鼓励可以缓冲母亲抑郁对儿童问题行为的影响。  相似文献   

11.
陈广耀  何先友  刘涛 《心理学报》2018,50(2):186-196
2个眼动实验分别探讨强弱语义语境下的否定句加工机制, 以便考察语言理解是命题表征的过程还是经验模拟的过程, 抑或是二者兼具。在实验中, 被试首先听句子(强语义语境:如“胳膊不是弯曲的”的备择选项为“伸直的胳膊”, 其中“弯曲−伸直”为具有反义关系的强语义连接关系; 弱语义语境:如加工“裙子不是蓝色的”的备择选项为“黑色的裙子”, “蓝色−黑色”为弱语义连接关系), 然后会看到4张同时呈现的图片, 被试的任务是按键选择与句子描述匹配的图片。结果发现, 在强语义语境条件下, 被试在早期(201~600 ms时窗)对描述事件否定状态的图片(弯曲的胳膊)与描述事件实际状态的图片(伸直的胳膊)的注视概率没有差别, 晚期(601 ms后)仅对描述事件实际状态的图片的注视概率更高; 弱语义语境条件下, 被试在早期(401~600 ms)仅对描述事件否定状态的图片(蓝裙子)注视概率更高, 晚期(801 ms后)仅对描述事件实际状态的图片(黑色裙子)注视概率更高; 并且, 都对描述事件否定状态的图片的注视概率低于随机水平。结果支持符号依存假设和抑制假设。  相似文献   

12.
个性化契约作为组织中一种非标准化的工作安排,以往研究较多关注其对契约获得者的积极效应,相对忽视了对未获得者的消极影响。鉴于此,本研究基于公平理论,探讨了同事个性化契约对员工工作退缩行为的影响及其内部机理。结果发现:同事个性化契约会引发员工的工作退缩行为,员工的心理契约违背在此过程中起部分中介作用;此外,员工与组织间较高的社会交换关系会削弱同事个性化契约对员工心理契约违背的正向影响。  相似文献   

13.
马捷  窦皓然  庄茜  尹冬雪  雷明  高超  张引  刘强  赵光 《心理学报》2018,50(2):143-157
背景线索效应是指在视觉搜索中由于场景的重复曝光而产生的行为便利。而以往研究关注于刺激的欧式性质所代表的属性信息对背景线索效应的影响, 然而在视知觉加工过程中扮演重要角色的拓扑性质对背景线索效应的影响仍缺乏相关实证研究。因此, 研究采用视觉搜索任务, 通过操控不同场景中刺激的拓扑性质或欧式性质的变化, 考察拓扑性质与欧式性质两种属性信息对背景线索效应的调制。结果发现:(1)拓扑性质和欧式性质与目标之间的联结关系均可促进行为反应, 获得背景线索效应; (2)视觉学习机制对拓扑性质的重复性更加敏感, 并且拓扑性质与目标之间联结关系的稳定性相对于欧式性质与目标之间的联结关系稳定性对于背景线索效应的获得具有更为重要的意义。  相似文献   

14.
Researchers sometimes report an effect of an experimental manipulation on a dependent variable in terms of the difference between levels of a certain nuisance variable required in the different experimental conditions to reach a given criterion of behavior. This method, however, may yield illusory impressions about magnitude of effects.  相似文献   

15.
We examined multimodality (the representation of information in multiple semiotic modes) in the context of international test comparisons. Using Program of International Student Assessment (PISA)-2009 data, we examined the correlation of the difficulty of science items and the complexity of their illustrations. We observed statistically significant mean correlation coefficient differences favoring higher-ranking over lower-ranking jurisdictions and non-Western over Western jurisdictions. We examined this correlation as a function of the variety of forms of representation of information used in illustrations. For the highest-ranking jurisdictions, the correlation tended to be positive and its magnitude tended to increase with the number of forms of representation. For the lowest-ranking jurisdictions, the correlation tended to be negative and its magnitude tended to increase with the number of forms of representation. Increased illustration complexity appears to be an affordance in making sense of science items for students from the highest-ranking jurisdictions and a challenge for students from the lowest-ranking jurisdictions. Our findings support the notion that integrating information provided in multiple semiotic modes is critical to science achievement and underscore the importance for science standards and international assessment frameworks to address this skill as intrinsic to (rather than an aspect of) science proficiency.  相似文献   

16.
苏怡 《心理科学进展》2018,26(3):391-399
学龄前孤独谱系障碍(Autism Spectrum Disorders; ASD)儿童对语言的习得程度是决定ASD儿童早期科学干预效果和最终预后水平的关键。以往ASD儿童语言研究多局限于英语ASD儿童, 较少有研究探讨不同语种ASD儿童语言习得的普遍机制。本研究拟结合汉语独特的语法属性, 通过多通道优先注视范式眼动实验考察2~5岁ASD儿童汉语核心语法的理解程度, 通过共同注意游戏评估ASD儿童的社会交流能力, 同时分析ASD儿童语言环境中相关语法结构的输入频率。研究旨在通过探讨学龄前ASD儿童的语法习得, 进一步探索人类语言习得的深层机制, 包括探索人类特有的语言机能对包括ASD儿童语言习得在内的人类语言习得的作用, 同时考察社会交流障碍与语言环境对人类语言习得过程的影响。  相似文献   

17.
Cognitive analysis of a case of pure dysgraphia   总被引:2,自引:1,他引:1  
An Italian patient with a pure dysgraphia who incorrectly spelled words and nonwords is described. The spelling errors made by the patient were not affected by lexical factors (e.g., frequency, form class) and were qualitatively the same for words and nonwords. The pattern of writing performance is discussed in relation to current models of writing and, specifically, in relation to the role of the Output Grapheme Buffer and Phoneme-Grapheme Conversion in writing.  相似文献   

18.
时序知觉是在几十毫秒到几百毫秒内, 对事件的同时性、非同时性和顺序性的知觉。对时序知觉的影响因素的探索可分为自下而上和自上而下两种研究取向。自下而上的研究探讨刺激的物理特征、被试的生物学特征, 以及实验方法对时序知觉的影响。而自上而下的研究探讨因果信念、情绪、文化对时序知觉的影响。今后的研究还应结合行为实验与神经科学技术, 深入探讨时序知觉的两种加工方式是分离的还是同时进行的, 以及揭示控制时序加工的脑区。  相似文献   

19.
Fifty right-brain-damaged patients and thirty-nine normal controls were given two tests of semantic-lexical discrimination (auditory language comprehension and reading comprehension) and a test of phoneme discrimination. The aims of the research consisted in checking: (A) if right-brain-damaged patients are significantly more impaired than normal controls on the tasks of semantic discrimination even when the influence of associated variables (such as unilateral spatial neglect or general mental impairment) is ruled out; and (B) if semantic-lexical disorders of right-brain-damaged patients are selective or if they are associated with disorders of phoneme discrimination. Results have shown that right hemispheric lesions consistently impair semantic-lexical discrimination but do not hamper phoneme discrimination. Some implications of these results are discussed.  相似文献   

20.
李锐 《周易研究》2007,1(3):28-33
本文从陈鼓应先生论证“《易传》道家说”的重点文章《〈彖传〉与老庄》、《〈彖传〉的道家思维方式》出发,不仅指出其论据方面的不足,而且指出其论证方法是使用“丐辞”、“默证”。因此,《彖传》不能成立。甚至陈先生所用的“道家”这一名目,也不适当。从而说明“《易传》道家说”不能成立,其“道家主干说”也因此缺少重要文献材料,难以服人。  相似文献   

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