Self–Serving Perceptions of Terrorism Among Israelis and Palestinians

Definitions of political violence as terrorism are often tainted by self–serving motivations. Groups in conflict in particular tend to justify the use of indiscriminate violent means by highly regarded political ends. This study explores such self–serving perceptions of terrorism in the context of the Israeli–Palestinian conflict. In two surveys during December 2001, Israeli Jews, Israeli Arabs and Palestinians were asked whether 11 local and international incidents were acts of terrorism in their view, and whether they were considered acts of terrorism by the international community. Self–serving judgments on both sides were expected, but their extent is striking, and they extend also to the international incidents. Israeli Arabs judge all acts of violence as terrorism in high percentages. Israeli Jews and Palestinians' definitions present a mirror image; however, they do not project these definitions to the international community. Instead, they perceive an international norm largely divergent from their own point of view, inflating world judgment of their own acts of violence as terrorism and underestimating world judgment of the other side's violence, in what amounts to a hostile–world phenomenon.     

A predictive model for psychological reactions to crime in Italy: an analysis of fear of crime and concern about crime as a social problem

In this study a model for predicting fear of crime (FC) and concern about crime as a social problem (CC) in Italy has been built, using three sets of independent variables concerning: (a) the sociodemographic and criminal victimization domain; (b) the psychosocial domain; and (c) the mass media. A secondary analysis on data gathered by the Observatory of the North‐West (N = 3262, a mail panel that is representative of the Italian population over 18) has been performed. Results showed that FC and CC are related yet distinct constructs: FC is less widespread than CC, and has different predictors. FC predictors are sociodemographic, psychosocial and, above all, victimization variables; whereas mass media and psychosocial variables predict CC. Results were compared with the literature on the topic. Implications, limitations, and future directions are discussed. Copyright © 2004 John Wiley & Sons, Ltd.     

心理会计与推理选择研究的新进展

心理会计与推理选择是行为决策理论的两个重要领域,本文主要综述它们在消费者偏好建构中的作用。研究表明,心理会计的原则常常调节对奢侈品的购买与消费;在这一调节过程中,推理可能发挥重要作用。本文还评述,在建构消费偏好的过程中,消费者有时选择最充分的理由,而不是选择最佳的选项;在其它一些情况下,消费者聚焦理由可能导致购买决策与消费体验之间的矛盾,以及偏好的非传递性。     

冲动性对吗啡诱导的条件性位置偏爱及行为敏感化的影响

许多研究显示, 冲动性与尼古丁、可卡因、海洛因等药物成瘾显著相关, 但它对吗啡成瘾的影响尚未见到报道。本实验考察冲动性对吗啡诱导的条件性位置偏爱及行为敏感化的影响。实验采用延迟奖赏模型将大鼠的冲动性区分为高、中、低三个水平, 每个水平设置吗啡处理组和盐水处理组。结果发现：动物对吗啡诱导的条件性位置偏爱的程度表现为低冲动组>中冲动组>高冲动组, 并且中、低冲动组动物形成了条件性位置偏爱而高冲动组没有形成这种偏爱; 在行为敏感化表达期, 与相应的盐水组比较, 高、中冲动组动物的吗啡运动激活效应显著, 而低冲动组没有达到显著水平。这些结果提示, 条件性位置偏爱任务中, 动物的冲动性越高, 吗啡的强化效应越低; 行为敏感化任务中, 动物的冲动性越高, 吗啡的运动激活效应越高。由此可见, 动物的冲动性对吗啡诱导的条件性位置偏爱及行为敏感化的影响存在差异。     

媒体与婴儿的认知发展

随着电视、网络、DVD视频等媒体设备的普及,媒体对婴儿发展的影响越来越受到父母和研究者的关注。电视等媒体与婴儿注意、语言和学习的相关研究是婴儿媒体研究中非常重要的内容。婴儿期对电视的注意随着年龄的增长而增长;婴儿的语言发展依赖于他们收看的电视节目类型及自身特征;当将视频学习和现实中等价学习进行比较时,非常年幼的儿童从视频中学习得更少。媒体对婴儿发展产生的影响是积极还是消极,缺少一个权威性的答案。鉴于这一点,本文从关注媒体的内容和形式、新的研究视角、以及国内研究现状等方面提出未来研究的趋势。     

内隐自尊和风险偏好对大学生职业决策的影响

为研究影响大学生职业决策的影响因素和决策有效性,实验一、二分别从决策者心理特征（内隐自尊与风险偏好）和职业方案特征（框架效应与风险水平）入手,考察二者对大学生职业决策行为的影响。结果发现：内隐自尊和风险偏好的高低显著影响大学生择业倾向性;大学生对风险水平不同的职业方案的选择倾向由低到高依次为冒险、折中、保守方案;职业决策存在明显的框架效应。研究表明,大多数大学生倾向于选择保守的职业方案;高风险偏好的大学生倾向于选择冒险的职业方案;高内隐自尊大学生倾向于主动择业;积极表述的职业方案更受大学生所青睐。     

Labels can override perceptual categories in early infancy

An extensive body of research claims that labels facilitate categorisation, highlight the commonalities between objects and act as invitations to form categories for young infants before their first birthday. While this may indeed be a reasonable claim, we argue that it is not justified by the experiments described in the research. We report on a series of experiments that demonstrate that labels can play a causal role in category formation during infancy. Ten-month-old infants were taught to group computer-displayed, novel cartoon drawings into two categories under tightly controlled experimental conditions. Infants were given the opportunity to learn the two categories under four conditions: Without any labels, with two labels that correlated with category membership, with two labels assigned randomly to objects, and with one label assigned to all objects. Category formation was assessed identically in all conditions using a novelty preference procedure conducted in the absence of any labels. The labelling condition had a decisive impact on the way infants formed categories: When two labels correlated with the visual category information, infants learned two categories, just as if there had been no labels presented. However, uncorrelated labels completely disrupted the formation of any categories. Finally, consistent use of a single label across objects led infants to learn one broad category that included all the objects. These findings demonstrate that even before infants start to produce their first words, the labels they hear can override the manner in which they categorise objects.     

Evaluation of absolute and relative reinforcer value using progressive-ratio schedules

We evaluated behavior exhibited by individuals with developmental disabilities using progressive-ratio (PR) schedules. High- and low-preference stimuli were determined based on the results of a paired-stimulus preference assessment and were evaluated in subsequent reinforcer and PR assessments using concurrent and single schedules of presentation. In Experiment 1, results showed that for 2 of 3 participants, stimuli determined to be low-preference functioned as reinforcers when evaluated independent of high-preference stimuli. Further, the results from Experiment 2 showed that low-preference stimuli also functioned as reinforcers under gradually increasing PR requirements. Results suggest that for cases in which a high-preference stimulus is unavailable or impractical, the contingent delivery of relatively less preferred stimuli may maintain appropriate behavior, even as schedule requirements increase.     

Reinforcement magnitude: an evaluation of preference and reinforcer efficacy

Consideration of reinforcer magnitude may be important for maximizing the efficacy of treatment for problem behavior. Nonetheless, relatively little is known about children's preferences for different magnitudes of social reinforcement or the extent to which preference is related to differences in reinforcer efficacy. The purpose of the current study was to evaluate the relations among reinforcer magnitude, preference, and efficacy by drawing on the procedures and results of basic experimentation in this area. Three children who engaged in problem behavior that was maintained by social positive reinforcement (attention, access to tangible items) participated. Results indicated that preference for different magnitudes of social reinforcement may predict reinforcer efficacy and that magnitude effects may be mediated by the schedule requirement.     

Temperament, ADHD and peer relations among schoolchildren: the mediating role of school bullying

The goal of the study is to investigate the link between temperament, attention-deficit hyperactivity disorder (ADHD) symptoms, social preference, bullying and victimization. The study sample consisted of 195 children attending the fourth and fifth grade (age 8-10), their mothers and their teachers. A multiinformant approach was used: mothers were interviewed about the temperament of their children; teachers were asked about ADHD symptoms; children responded to a peer nominations inventory designed to investigate their roles as bullies and/or victims and their social preferences (liked and disliked peers). A Structural Equation Model multigroup analysis (males and females) was used to test the relationships among variables hypothesized by the authors. The analysis showed that temperamental variables have a direct relation to ADHD symptoms, that ADHD has a direct relation to bullying behavior in males and to victimization in females and that bullies and victims are less well accepted than peers who belong to neither category. ADHD has only an indirect relation to social preference through the mediating role of school bullying.