基于特征的联想

联想是认知科学中十分重要的现象,许多学者进行过不同角度的研究,获得了许多有意义的结果。根据有关对象（０ｂｊｅｃｔ）描述的基本概念,从联接机制的角度对联想问题进行一些探讨,并提出一个基于特征的联想模型ＦＢＣＡＭ（ＦｅａｔｕｒｅＢａｓｅｄＣｏｎｎｅｃｔｉｏｎｉｓｔＡｓｓｏｃｉａｔｉｏｎＭｏｄｅｌ）。在ＦＢＣＡＭ中,对象由其特征及特征的伴随值描述,从而可以获得更为精确的描述。对象的全部特征构成描述模式,伴随值则相应地构成伴随向量。在此基础上可以细致地刻画概念之间的相似性,并可对联想及注意机制进行细致的模拟与分析。文中利用联接机制的思想实现了ＦＢＣＡＭ并给出该系统的部分运行结果,表明ＦＢＣＡＭ可以较合理地解释联想过程     

Local contrast in multiple schedules: the effect of stimulus discriminability.

A three-ply multiple schedule assessed responding in a standard component as a function of the just-preceding schedule. The principal experimental condition was the difference among the wavelengths signaling the schedule components. Only the pigeons working in a narrow wavelength range showed persistent positive local contrast; that is, response rate during the standard component was higher when that component followed extinction than when it followed itself. Birds in both narrow- and medium-range groups showed persistent negative local contrast; that is, rate was lower following a relatively rich component. The dissipation of positive contrast appeared to be most clearly related to the establishment of differential responding. Negative contrast was inversely related to wavelength differences. Theories pertaining to contrast must account for the role of discrimination in both positive and negative types.     

Statistical evaluation of measures of fit in the Lingoes-Borg procrustean individual differences scaling

PINDIS, as recently presented by Lingoes and Borg [1978] not only marks the latest development within the scope of individual differences scaling, but, may be of benefit in some closely related topics, such as target analysis. Decisions on whether the various models available from PINDIS fit fallible data are relatively arbitrary, however, since a statistical theory of the fit measures is lacking. Using Monte Carlo simulation, expected fit measures as well as some related statistics were therefore obtained by scaling sets of 4(4)24 random configurations of 5(5)30 objects in 2, 3, and 4 dimensions (individual differences case) and by fitting one random configuration to a fixed random target for 5(5)30 objects in 2, 3, and 4 dimensions (target analysis case). Applications are presented.     

样例表面内容对问题解决类比迁移过程的影响

探讨样例与新问题表面内容不同的相似关系对类经迁移过程的影响。实验１要求被试学习概率问题的样例后,解决与样例表面内容相似关系不同的新问题。结果表明,在新问题的内在原理与样例相同的情况下,两者表面根貌相似有利于被试对新问题的类化,表面对应相似则促进被试对公式的正确运用;     

The development of optimism and perceived attainment from elementary school to junior high school

Optimism (a perception of future improvement of children's own achievement levels) and perceived present attainment were examined developmentally in relation to academic achievement and motivation. Subjects were 507 Japanese third-, fifth-, and seventh-grade children. After categorization as high or low on perceived attainment (H/L) and optimism (h/l), two (Hh, Ll), three (Hh, Lh, Ll), and four (Hh, Hl, Lh, Ll) groups were obtained in the third, fifth, and seventh grades, respectively. These groups showed characteristic features in terms of motivation- and achievement-related measures. Both optimism and perceived attainment explained the differences in scores on the measures between the two third-grade groups. In grades 5 and 7 perceived attainment was the primary factor explaining the group differences, while the optimism dimension was a secondary factor, whose influence was stronger in grade 7. The results are discussed in relation to the development of self-perceptions, as well as changes in learning environment between elementary school and junior high school.     

A transfer of functions through derived arbitrary and nonarbitrary stimulus relations

During Experiments 1 and 2, subjects were trained in a series of related conditional discriminations in a matching-to-sample format (A1-B1, A1-C1 and A2-B2, A2-C2). A low-rate performance was then explicitly trained in the presence of B1, and a high-rate performance was explicitly trained in the presence of B2. The two types of schedule performance transferred to the C stimuli for all subjects in both experiments, in the absence of explicit reinforcement through equivalence (i.e., C1 = low rate and C2 = high rate). In Experiment 2, it was also shown that these discriminative functions transferred from the C1-C2 stimuli to two novel stimuli that were physically similar to the C stimuli (SC1 and SC2, respectively). For both these experiments, subjects demonstrated the predicted equivalence responding during matching-to-sample equivalence tests. In Experiments 3 and 4, the conditional discrimination training from the first two experiments was modified in that two further conditional discrimination tasks were trained (C1-D1 and C2-D2). However, for these tasks the D stimuli served only as positive comparisons, and ND1 and ND2 stimuli served as negative comparisons (i.e., C1 × ND1 and C2 × ND2). Subsequent to training, the negatively related stimuli (ND1 and ND2) did not become discriminative for the schedule performances explicitly trained in the presence of B1 and B2, respectively. Instead, the ND1 stimulus became discriminative for the schedule performance trained in the presence of B2, and ND2 became discriminative for the schedule performance trained in the presence of B1. All subjects from Experiment 4 showed that the novel stimulus SND1, which was physically similar to ND1, became discriminative for the same response pattern as that controlled by ND1. Similarly, SND2, which was physically similar to ND2, became discriminative for the same response pattern as that controlled by ND2. Subjects from both Experiments 3 and 4 also produced equivalence responding on matching-to-sample equivalence tests that corresponded perfectly to the derived performances shown on the transfer of discriminative control tests.     

Fear of victimization in Mexico

The aim of this study was to explore the influence on Mexican citizens of several variables that have been reported as being important in the literature on fear of victimization. Sociodemographic variables such as gender, age group and socioeconomic level, together with perceived risk of victimization, perceived seriousness in the face of different acts, experienced victimizations and perception of control of violence and crime are included among these variables. One hundred and eighty-one people were interviewed in a cross-sectional field study. Multiple regression analyses were carried out in three fear of victimization dimensions: personal, property and general situations. On the whole, the findings confirm the influence of the aforesaid variables. Being a woman, feeling at risk of being the object of violent attacks and the seriousness with which moderately violent acts are perceived were some of the major variables considered to predict fear of victimization.     

Individualism–collectivism and organ donation intentions

This article investigates the impact of individualism–collectivism on a person's willingness to donate organs. In Study 1, an online survey showed that individualism–collectivism was significantly and positively associated with participants' willingness to register as organ donors while perceived benefit mediated this relationship. Study 2 demonstrated the causal effect of individualism–collectivism on organ donation intentions using a priming technique. Participants primed with collectivism were more likely to register as organ donors than those primed with individualism. Our findings provide unique insights into whether cultural values (i.e., individualism–collectivism) can predict people's organ donation intentions.     

建言类型对领导者建言采纳的影响：面子与幽默的作用

以说服和面子理论为基础,通过两个研究探讨领导者建言采纳行为的影响因素及作用机制。结果发现：相对于促进型建言,抑制型建言给领导带来的面子威胁更大,且领导者感知面子威胁在建言类型与建言采纳之间起部分的中介作用。而幽默类型与水平影响领导者感知面子威胁的程度,积极幽默水平越高,领导者感知面子威胁的程度越低,其建言采纳可能性越高。这表明领导者感知面子威胁在建言类型与建议采纳间起中介作用,幽默调节了此中介效应。     

Both overwhelmed or in it together? Similarity in COVID-19-related stress and romantic relationship quality

Stress tends to be negatively associated with romantic relationship quality, but shared stress can bond romantic partners and may actually have a positive effect on relationships. Thus, are similar levels of pandemic-related stress during the COVID-19 pandemic—a time of high stress for many couples—associated with better or worse relationship quality? In this study, we investigated whether similarity in COVID-19-related stress was associated with romantic relationship outcomes in two dyadic samples (N = 300 couples). Generally, we found little evidence that similarity in COVID-19-related stress was associated with relationship outcomes. We did find that similarity in general worry about the pandemic was associated with lower overall relationship quality; however, it was also associated with lower levels of viewing the pandemic as a source of conflict. Therefore, more research is needed to understand the nuances of when and how stress similarity is associated with romantic relationship quality.