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51.
    
A component-functions model of choice behavior is proposed for performance on interdependent concurrent variable-interval (VI) variable-interval schedules based on the product of two component functions, one that enhances behavior and one that reduces behavior. The model is the solution to the symmetrical pair of differential equations describing behavioral changes with respect to two categories of reinforcers: enhancing and reducing, or excitatory and inhibitory. The model describes residence time in interdependent concurrent VI VI schedules constructed from arithmetic and exponential distributions. The model describes the data reported by Alsop and Elliffe (1988) and Elliffe and Alsop (1996) with a variance accounted for of 87% compared to 64% accounted for by the Davison and Hunter (1976) model and 42% by Herrnstein's (1970) hyperbola. The model can explain matching, undermatching, and overmatching in the same subject under different procedures and has the potential to be extended to performance on concurrent schedules with more than two alternatives, multiple schedules, and single schedules. Thus, it can be considered as an alternative to Herrnstein's quantitative law of effect.  相似文献   
52.
    
Most recent writing linking science and literature has concerned itself with challenges to the epistemological status of scientific knowledge in an attempt to demonstrate its contingency, arguing in the more radical efforts that the structures of science are no more than useful fictions. This essay also includes an epistemological comparison between science and literature, but instead of making grand or meta–statements about the nature of knowing generally in the two fields, mine is a much narrower aim. My exploration entails two tasks. First, I provide a close–up look at a particular type of experiment, called the delayed–choice experiment, which clearly reveals the strangeness of the quantum world. In connection with this experiment, I discuss wave functions—mathematical expressions used by physicists to describe quantum behavior and predict the outcome of experiments involving quanta. Second, I look at Walt Whitman's “Song of Myself” focusing on the meaning of the “self” in the poem. My aim is to treat the object of study in each field as a “text” and to assert and demonstrate a parallel in the strategies of thought and response between physicists (“readers”) pondering the meaning and status of a wave function and poem readers pondering the meaning and status of the poem's self. In Whitman's “Song” we find an attempt to understand complex aspects of human experience that are said to transcend ordinary reality, an effort for which I believe there are parallels in the attempts of modern physicists to understand complex, nonintuitive aspects of the subatomic world. While not making the kind of broad claims eschewed above, I do suggest that this focused study has interesting implications since both the wave function and the poem's self force their respective sets of “readers” to confront questions of ultimacy—to consider, that is, epistemological and ontological issues of more than passing interest to students of science as well as those of metaphysics and theology.  相似文献   
53.
    
Participants were pretrained and tested on mutually entailed trigonometric relations and combinatorially entailed relations as they pertained to positive and negative forms of sine, cosine, secant, and cosecant. Experiment 1 focused on training and testing transformations of these mathematical functions in terms of amplitude and frequency followed by tests of novel relations. Experiment 2 addressed training in accordance with frames of coordination (same as) and frames of opposition (reciprocal of) followed by more tests of novel relations. All assessments of derived and novel formula‐to‐graph relations, including reciprocal functions with diversified amplitude and frequency transformations, indicated that all 4 participants demonstrated substantial improvement in their ability to identify increasingly complex trigonometric formula‐to‐graph relations pertaining to same as and reciprocal of to establish mathematically complex repertoires.  相似文献   
54.
    
This article reports on a series of 5 analyses of spontaneous production of verbal inflection (tense and person–number agreement) by 2-year-olds acquiring French as a native language. A formal analysis of the qualitative and quantitative results is developed using the unique resources of Optimality Theory (OT; Prince & Smolensky, 2004). It is argued that acquisition of morphosyntax proceeds via overlapping grammars (rather than through abrupt changes), which OT formalizes in terms of partial rather than total constraint rankings. Initially, economy of structure constraints take priority over faithfulness constraints that demand faithful expression of a speaker's intent, resulting in child production of tense that is comparable in level to that of child-directed speech. Using the independent Predominant Length of Utterance measure of syntactic development proposed in Vainikka, Legendre, and Todorova (1999), production of agreement is shown first to lag behind tense then to compete with tense at an intermediate stage of development. As the child's development progresses, faithfulness constraints become more dominant, and the overall production of tense and agreement becomes adult-like.  相似文献   
55.
《心理学报》2025,57(4)
越来越多的企业采用品牌拟人化沟通的方式进行品牌传播, 促进绿色消费倾向。本研究将基于习得可评估性理论, 探索品牌拟人化沟通对绿色消费倾向的影响机制及边界条件。本研究共包含4个实验。实验1表明品牌拟人化沟通能够有效促进绿色消费倾向, 构建了从品牌拟人化沟通到习得可评估性到品牌环保价值敏感性再到绿色消费倾向的完整因果链。实验2界定主效应的边界, 发现相比于普通品牌, 主效应在绿色品牌情境中更显著, 再次验证主效应的理论逻辑。实验3分析了消费者动机类型(利己/利他)对主效应的调节作用。结果表明,当消费者利他动机被激发时, 品牌拟人化沟通能够显著地促进绿色消费倾向, 当消费者利己动机被激发时, 品牌拟人化沟通不会影响绿色消费倾向。实验4验证了产品类型(搜索品/体验品)对主效应的调节作用。结果表明当产品类型为搜索品时,品牌拟人化沟通能够显著地促进绿色消费倾向, 当产品类型为体验品时, 品牌拟人化沟通不会影响绿色消费倾向。本研究拓展了品牌拟人化沟通以及绿色消费相关领域的研究。  相似文献   
56.
韦伯比的拟合公式   总被引:2,自引:1,他引:1       下载免费PDF全文
陈文熙 《心理学报》1996,29(4):419-424
本文以神经生理学为基础,结合感官具有调节和比较两功能的实用性,建立起刺激在大脑皮层上引起感知效应E的数学模型:E=Blog(1+kI),其中k=I ̄(-b)/a。从此出发,可推出中等以上刺激的差别阈判据:△EM=恒量。将此判据推广到弱刺激,即得到差别阈的普适规律:△I/(I+aI ̄b)=N,亦即韦伯定律的修订公式。从弱到强的广大刺激范围内,它都能与实验数据拟合良好。  相似文献   
57.
Peaceful third‐party interventions usually occur after an aggressive encounter and can be directed toward the victim or the aggressor. Macaca tonkeana, a cercopithecine species characterized by high levels of tolerance, frequently engage in consolatory contacts, which both calm the victim and reduce the probability of further attacks against him/her. Other post‐conflict affiliative interventions such as reconciliation and quadratic affiliation are also common in this species. However, little attention has been given to contacts directed toward the aggressor. Here, we explore the role of bystander affiliative interventions toward the aggressor in influencing the affective state of the aggressor and the consequences of triadic interventions at group level. We found that triadic post‐conflict affiliation occurred independently from the intensity of the conflict and that it was more frequent in absence of the conciliatory contact between the opponents (reconciliation). Bystanders showed a higher amount of post‐conflict affiliation toward low ranking aggressors. Post‐conflict triadic affiliation functioned as a tension reduction mechanism by lowering the arousal of the aggressor, which less frequently engaged in renewed aggression. All these findings suggest that post‐conflict triadic contacts in Tonkean macaques can be considered as a strategic mechanism to calm the aggressor and reduce the risk of retaliatory aggression.
  相似文献   
58.
探索课题研究的前提性问题是从事任何一项真正意义的学术研究不可缺少的准备性工作。内隐自我信息加工方式研究是社会认知心理学领域的一个前沿性课题,它是从认知心理学的角度对人在无意状态下自动地加工与自我有关信息的过程和方式所进行的整体性研究。这一研究不但具有重要的理论价值和应用价值。而且具有其他研究无法替代的独特性。  相似文献   
59.
数学焦虑研究的认知取向   总被引:22,自引:3,他引:22  
陈英和  耿柳娜 《心理科学》2002,25(6):653-655,648
数学焦虑一直是心理学界研究和讨论的热点问题。本文主要从认知的角度对数学焦虑进行解释,并以此揭示数学焦虑的心理机制和思维规律。  相似文献   
60.
The way employees in an occupational crisis and other employees explain work events was analyzed. Two hundred and seventeen female participants gave spontaneous attributions for 7 positive and 7 negative hypothetical work events. The results showed that other-blame and a general negative emotional tone of the attributions most powerfully differentiated crisis individuals' attributions from noncrisis individuals' attributions. Future studies are required to determine whether negative attributions lead to occupational crises or whether occupational crises activate employees' tendencies to negative attributions.  相似文献   
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