An intensional epistemic logic

One of the fundamental properties inclassical equational reasoning isLeibniz's principle of substitution. Unfortunately, this propertydoes not hold instandard epistemic logic. Furthermore,Herbrand's lifting theorem which isessential to thecompleteness ofresolution andParamodulation in theclassical first order logic (FOL), turns out to be invalid in standard epistemic logic. In particular, unlike classical logic, there is no skolemization normal form for standard epistemic logic. To solve these problems, we introduce anintensional epistemic logic, based on avariation of Kripke's possible-worlds semantics that need not have a constant domain. We show how a weaker notion of substitution through indexed terms can retain the Herbrand theorem. We prove how the logic can yield a satisfibility preserving skolemization form. In particular, we present an intensional principle for unifing indexed terms. Finally, we describe asound andcomplete inference system for a Horn subset of the logic withequality, based onepistemic SLD-resolution.     

智能手机成瘾者的注意执行控制功能:心智游移的作用

智能手机成瘾可能会影响个体的注意执行控制功能,以往研究结果在该影响是否取决于实验刺激与成瘾物的相关性上存在不一致,研究关注心智游移在其中的作用。采取《大学生智能手机成瘾量表》筛选被试90人分为成瘾组和非成瘾组。实验一采用反应的持续注意任务考察不同水平智能手机成瘾者的心智游移特点,采用《白日梦量表》辅助研究,结果发现智能手机成瘾被试量表得分显著更高,在实验中更多地评估任务表现,且其心智游移与偶然性的任务疏忽、一般性任务疏忽以及反应分离状态有关。实验二采用AX版本的持续操作任务探究智能手机成瘾者的注意执行控制功能中心智游移的调节作用,结果发现高频心智游移的智能手机成瘾者比低频心智游移的智能手机成瘾者维持目标更困难。研究对于理解智能手机成瘾对个体认知的影响具有一定的启示作用。     

员工建言行为的人口统计特征元分析

研究目的在于明确人口统计学特征与员工建言行为的关系。共81篇实证文献被纳入元分析, 被试人数为39118人。结果发现, 员工年龄、教育程度、组织任期和职位均与建言行为显著正相关, 即年龄越大、受教育程度越高、组织任期越长的员工会表现出越多建言行为; 同时, 在不同的文化背景下, 职位高低与建言行为的关系存在显著差异, 受中国传统文化影响, 高、低职位员工的建言行为数量差异明显, 而在非中国情境下, 员工职位高低对其建言行为的数量影响差异不明显; 此外, 建言行为的数据来源对员工年龄与建言行为之间的关系存在显著调节作用, 采用他评方式时, 年龄与建言行为的正向关系更为显著。研究结果为人口统计特征预测建言行为提供较为精确的估计, 并为未来建言行为的相关研究指引了方向。     

Turning a blind eye: Meritocracy moderates the impacts of social status on corruption perception

Findings on the effect of social status on corruption perception are mixed. To make sense of the mixed results, three studies were conducted to examine whether meritocracy moderates this effect. In Study 1, we measured all variables using a questionnaire-based correlational design. In the preregistered Study 2, we adopted an experimental design in which we manipulated social status using a false feedback paradigm and measured corruption perception and meritocracy. In Study 3, we manipulated meritocracy using a scrambled sentence task and measured its effect on the relationship between social status and corruption perception. The results consistently demonstrated that meritocracy could moderate the influence of social status on corruption perception. Specifically, social status was negatively associated with corruption perception when meritocracy was weak, whereas the association was not significant when meritocracy was strong. Our results suggest that meritocracy critically affects acknowledgment of the pervasiveness of social injustice and even deters the disadvantaged from fighting against corruption.     

The role of dark pattern stimuli and personality in online impulse shopping: An application of S-O-R theory

Online impulse shopping is a growing industry. This paper uses the Stimulus-Organism-Response framework to model online impulse purchase behavior using a novel combination of stimuli and organism characteristics. The stimuli: social proof, limited-quantity scarcity, and high-demand, are three commonly used website features known as dark patterns. The organism characteristic personality is measured by the big 5 personality traits and persona generated through latent profile analysis. Using the machine learning algorithm XGBoost, impulse purchasing response was predicted separately for each dark pattern stimuli. Results show personality characteristics are important features when predicting consumer impulse purchasing in response to dark pattern messages. Moreover, the personality traits (and personas) most predictive of impulse shopping behavior varied by type of dark pattern. Findings suggest personality influences susceptibility to different dark patterns, indicating a need for tailored interventions to mitigate individual consumer vulnerabilities to impulse shopping.     

The precision of velocity discrimination across spatial frequency

The precision of velocity coding for moving stimuli of different spatial frequencies was assessed by measuring velocity discrimination thresholds for a 1-c/deg grating paired with a grating whose spatial frequency ranged from 0.25 to 4 c/deg and for grating pairs of the same spatial frequency (0.25, 1, and 4 c/deg). The gratings always moved upward, with velocities ranging from 0.5 to 16 deg/sec, Velocity discrimination was as precise for stimuli that varied in spatial frequency by: ±2 octaves (0.25 vs. 1 c/deg and 4 vs. 1 c/deg) as for stimuli of the same spatial frequency, for specific ranges of velocity that depended on the spatial and, therefore, the temporal frequencies of the stimuli. Compared with a 1-c/deg grating, the perceived velocity of 4-c/deg gratings was about 1.3 times faster and that of 0.25-c/deg gratings was about 1.3 times slower. Although these perceived velocity biases imply variation of velocity-signal processing among spatial frequency channels, the discrimination results indicate that the motion-sensing system can compare signals across different spatial frequency channels to make fine velocity discrimination within appropriate temporal frequency limits.     

儿童镜像书写的研究

本实验选择了幼儿园大班,小学一、三、五年级的5—12岁右利儿童133人,用八种书写方式书写自己的姓名、阿拉伯数字1—10和八个汉字,同时检查了儿童的定向能力。结果表明:随着年龄的增大,镜像书写出现的人次和数目减少;自左往右的习惯方向书写所出现的镜像人次和数目比自右往左的非习惯方向少;左手出现镜像书写比右手多;双手同时书写比单手出现的镜像书写多;有空间定向力的比仅有自身定向和无定向力的人出现的镜像书写少。本文验证了镜像书写形成的传统假说后,进一步提出了熟练理论:随着对汉字和数字的认知与视-书写运动图式的牢固掌握,镜像字体的出现就逐渐减少,并认为镜像书写存在着一个复杂的机制,是受多因素控制的。     

Females excel at basic face perception

Females are generally better than males at recognizing facial emotions. However, it is not entirely clear whether and in what way females may also excel at non-affective face recognition. Here, we tested males and females on two perceptual face recognition tasks that involved only neutral expressions: detection and identity discrimination. On face detection (Experiment 1), females were significantly more accurate than males in detecting upright faces. This gender difference was reduced during inverted face detection, and not present during tree detection, suggesting that the magnitude of the gender difference for performance co-varies with the extent to which face processing mechanisms are involved. On facial identity discrimination (Experiment 2), females again outperformed males, particularly when face images were masked by visual noise, or the delay between comparison face images was extended from 0.5 to 3 s. These results reveal a female advantage in processing face-specific information and underscore the role of perceptual factors in socially relevant gender differences.     

大学生共情对利他行为的影响:一个有调节的中介模型

探究大学生共情、幸福感和神经质对利他行为的影响,为促进大学生利他行为提供依据。采用方便取样,选取辽宁省某高校选修课程学生273名,完成中文版人际反应指针量表、神经质人格问卷、幸福感指数量表和大学生利他行为问卷。结果显示:(1) 神经质在共情和利他行为之间起着部分中介作用,也就是说,共情既对利他行为产生直接影响,也通过神经质间接地影响着利他行为;(2) 幸福感是神经质部分中介共情和利他行为关系的调节变量。幸福感调节的是中介作用的后半路径,即共情通过神经质对利他行为的间接效应受到幸福感的调节。具体的说,相对于低幸福感的大学生,间接效应对于高幸福感的大学生更加显著。因此,共情对利他行为的影响是有调节的中介效应。研究结论对增强大学生利他行为有重要的理论价值和实践指导价值。     

心理咨询中工作同盟的发展模式与咨询效果

为了探索工作同盟在咨询过程中的发展模式, 采用Stiles等(2004)提出的4个变化特征参数(shape-of-change parameters)对30个个案的工作同盟在咨询过程中的发展变化进行描述。聚类分析的结果显示有3类工作同盟的发展模式, 分别是线性增长、线性下降和二次增长模式。不过, 3种发展模式、4个变化特征参数及同盟的破裂?修复片段对咨询效果均没有影响。比较咨询效果不同的当事人在工作同盟发展模式上的差异, 发现同一个发展模式对于不同的个案可能有着不同的含义, 咨询师在早期对同盟关系的处理与调控对咨询效果有着重要的影响。