Temporal generalization gradients following an interdimensional discrimination protocol

We investigated the effects of interdimensional discrimination training in the temporal generalization gradient. In a matching-to-sample task, pigeons learned to choose key S after a T–s houselight sample and key NS in the absence of the houselight sample. For one group of pigeons, T?=?20?s; for another, T?=?10?s. Subsequently, houselight duration was varied to obtain temporal generalization gradients. Results showed that (a) proportion S increased as houselight duration ranged from 0?s to T?s and then remained high for houselight durations longer than T; (b) the gradients were well described by negative-exponential functions; (c) these non-flat gradients were present from the beginning of testing, and; (d) the average gradients obtained with T?=?20?s and T?=?10?s overlapped when plotted in relative time. We conclude that temporal control does not require explicit discrimination training along the temporal dimension, and that temporal generalization gradients obtained with an interdimensional protocol show the scalar property of timing. We discuss how these findings challenge current models of timing.     

The differentiation of response numerosities in the pigeon

Two experiments examined how pigeons differentiate response patterns along the dimension of number. In Experiment 1, 5 pigeons received food after pecking the left key at least N times and then switching to the right key (Mechner's Fixed Consecutive Number schedule). Parameter N varied across conditions from 4 to 32. Results showed that run length on the left key followed a normal distribution whose mean and standard deviation increased linearly with N; the coefficient of variation approached a constant value (the scalar property). In Experiment 2, 4 pigeons received food with probability p for pecking the left key exactly four times and then switching. If that did not happen, the pigeons still could receive food by returning to the left key and pecking it for a total of at least 16 times and then switching. Parameter p varied across conditions from 1.0 to .25. Results showed that when p= 1.0 or p=.5, pigeons learned two response numerosities within the same condition. When p=.25, each pigeon adapted to the schedule differently. Two of them emitted first runs well described by a mixture of two normal distributions, one with mean close to 4 and the other with mean close to 16 pecks. A mathematical model for the differentiation of response numerosity in Fixed Consecutive Number schedules is proposed.     

Homicide and property crime: The relationships to anomie

Sociological explanations of crime have given considerable attention to Merton's anomie theory without systematically testing it. This paper tests Merton's theory through operationalizing anomie in terms of the degree of inequality in the distribution of income in each of the 50 states. A multiple regression analysis determines that while income inequality is significantly related to the rate of homicide, it is not significantly related to the rate of property crime. A preliminary cross-national analysis of 20 nations replicates this same general finding. The results suggest that a relatively large gap between material success and the means to success is likely to result in crimes of violence rather than property crime once we control the influence of other variables.     

Algebraic Characterizations of Various Beth Definability Properties

In this paper it will be shown that the Beth definability property corresponds to surjectiveness of epimorphisms in abstract algebraic logic. This generalizes a result by I. Németi (cf. [11, Theorem 5.6.10]). Moreover, an equally general characterization of the weak Beth property will be given. This gives a solution to Problem 14 in [20]. Finally, the characterization of the projective Beth property for varieties of modal algebras by L. Maksimova (see [15]) will be shown to hold for the larger class of semantically algebraizable logics.     

视觉信息加工中的整体优先性

该文综述了视知觉的整体优先性理论,以及关于整体优先性机制的理论及其面临的困难,特别介绍了本文作者近年来开展的一系列关于整体优先性的行为和事件相关电位研究结果,以及根据这些结果提出的一个基于知觉组织和选择性注意相互作用的复合刺激加工的理论模型。     

行为事实属性与行为应该属性——孙志海批评之批评

孙志海如果研究过元伦理学,恐怕就不会质疑“行为事实属性”概念。因为元伦理学的根本问题——“应该”、“价值”能否从“是”、“事实”推导出来——显然蕴含着“行为应该如何”与“行为事实如何”概念,蕴含着“行为应该”与“行为事实”概念,蕴含着“行为应该属性”与“行为事实属性”概念。     

意图信息在物权判断和道德判断中的作用

意图会影响人们的道德判断,但尚不清楚意图在物权判断中的作用。本研究以266名非法学专业的大学生为被试,通过包含不同意图（恶意/善意/无意）的故事情境,考察了在损失求偿和获益分享情境中人们的物权判断和道德判断。结果发现,在损失求偿情境中,不管是出于善意、恶意还是无意,被试均判断行为者应当赔偿他人损失,但不认为无意的行为者应受谴责。在获益分享情境中,被试认为善意的行为者应分享给他人带来的收益且应受赞扬,但恶意的行为者不应分享收益和受赞扬。综合来看,物权判断比道德判断较少受意图信息的影响,反映人们的物权判断具有领域特异性。     

Projective Beth Property in Extensions of Grzegorczyk Logic

All extensions of the modal Grzegorczyk logic Grz possessing projective Beth's property PB2 are described. It is proved that there are exactly 13 logics over Grz with PB2. All of them are finitely axiomatizable and have the finite model property. It is shown that PB2 is strongly decidable over Grz, i.e. there is an algorithm which, for any finite system Rul of additional axiom schemes and rules of inference, decides if the calculus Grz+Rul has the projective Beth property. Dedicated to the memory of Willem Johannes Blok     

No Harm,Still Foul: Concerns About Reputation Drive Dislike of Harmless Plagiarizers

Across a variety of situations, people strongly condemn plagiarizers who steal credit for ideas, even when the theft in question does not appear to harm anyone. Why would people react negatively to relatively harmless acts of plagiarism? In six experiments, we predict and find that these negative reactions are driven by people's aversion toward agents who attempt to falsely improve their reputations. In Studies 1–3, participants condemn plagiarism cases that they agree are harmless (i.e., stealing credit from an anonymous source). This effect is mediated by the extent to which participants perceive the plagiarizer to have falsely benefitted from plagiarizing. In Studies 4–5, we demonstrate that this effect is not explained solely by participants’ negative response to lies or violations of permission. In Study 6, participants condemn a plagiarism case in which the idea's original author actually benefits, providing the strongest evidence that people condemn plagiarism for reasons beyond perceived harm. We discuss how this work connects to broader questions of intellectual property and impression management.     

非注意状态下拓扑性质优先加工的电生理学证据

采用ERP技术并运用跨通路延迟反应范式来探讨拓扑性质知觉理论在非注意状态下是否成立,发现存在视觉MMN且视觉系统在非注意状态下对拓扑性质的加工比颜色加工更早,表明与局部属性(颜色)相比,拓扑性质在无意识中优先得到加工,拓扑性质知觉理论在非注意状态下是成立的。