The perceptual salience of symmetrical and asymmetrical sections of a line

A vertical line segment intersecting a horizontal one at different crossing points generates line sections. Visual perception of such line sections was investigated here in two experiments. In both experiments participants were most accurate and precise when they had to reproduce symmetrical sections. Interestingly, the different asymmetrical sections of a line were not equivalent in terms of participants' performance: constant errors changed as a function of sections and the error curve was nicely interpolated by the composition of two harmonics of the line length. In consistence with the harmonic fitting of the data, we propose that the perceptual salience of specific asymmetrical sections is a byproduct of the automatic triggering of a line midpoint identification process. Being perceptually tuned to symmetry warps our visual representation of the line, which results in systematic misperceptions. The way of bringing present and past experimental findings into a unitary whole is proposed.     

The contribution of agreeableness and self‐efficacy beliefs to prosociality

The present study examined how agreeableness and self‐efficacy beliefs about responding empathically to others' needs predict individuals' prosociality across time. Participants were 377 adolescents (66% males) aged 16 at Time 1 and 18 at Time 2 who took part at this study. Measures of agreeableness, empathic self‐efficacy and prosociality were collected at two time points. The findings corroborated the posited paths of relations to assigning agreeableness a major role in predicting the level of individuals' prosociality. Empathic self‐efficacy beliefs partially mediated the relation of agreeableness to prosociality. The posited conceptual model accounted for a significant portion of variance in prosociality and provides guidance with respect to interventions aimed at promoting prosociality. Copyright © 2009 John Wiley & Sons, Ltd.     

2009年贵阳市住院儿童手足口病病原学及临床特点

为了解贵阳地区2009年4月~9月儿童手足口病的病原学及临床特点。从住院的820例手足口病患儿中采集部分伴有重症倾向的244例患儿的肛试子和咽试子标本进行RT-PCR技术检测,并进行临床观察。218例检测到肠道病毒,占89.34%,其中138例为EV71,占63.30%。72例为CA16,占33.02%,两者之比1.92:1。不同年龄组的病原构成差异有统计学意义(P0.01)。重症病例EV71感染明显高于轻症病例,两者在临床特征方面差异有统计学意义(P0.01)。2009年贵阳市住院儿童手足口病的主要病原是EV71和CA16;1岁~3岁的患儿EV71感染明显高于CA16,EV71比CA16更易引重症手足口病,重症病例与轻症病例在临床表现上有明显差异。     

改革开放30年中国农村土地承包经营权制度流变——一个法经济学的视角

农村土地承包经营权是改革开放以来我国农地制度在法律上的具体体现.随着我国改革开放的不断深入,土地承包经营权的边际效用逐渐降低,需要合理的制度供给和相应的制度变迁.从制度供给的角度来看,改革开放以来我国农村土地承包经营权的制度变迁主要经历了政策推动阶段、政策法律化开启阶段、政策法律化深入阶段和政策法律化完善阶段.通过对各阶段土地承包经营权的产权结构和实施绩效的分析,可以发现在土地承包经营权自下而上的需求诱致性制度变迁过程中,今后制度变迁的发展路径应更注重法律合理化、类型化变迁和政府守法等方面的改良.     

Effects of basic human values on host community acculturation orientations

Although literature provides evidence for the relationship between values and acculturation, the relationship between host community acculturation orientations has not yet been investigated. In this study we tested the effects of four high-order values (openness to change, self-transcendence, conservation, and self-enhancement, devised according to Schwartz's model) on host community acculturation orientations towards immigrants (devised according the interactive acculturation model) in the public domain of employment and the private domain of endogamy/exogamy. Participants were 264 Italian University students, who completed a questionnaire containing the Portrait Values Questionnaire, a measure of personal values, and the Host Community Acculturation Scale, aimed at measuring Italian acculturation strategies towards three groups of immigrants: Immigrants (the general category), Chinese (the valued immigrant group), and Albanians (the devalued immigrant group). Results showed that personal values are related to the adoption of acculturation orientations: In particular, the values that mostly impacted on acculturation orientations were self-transcendence and conservation. Values concerning self-transcendence encourage the adoption of integrationism, integrationism-transformation, and individualism and reduce the adoption of assimilationism, segregationism, and exclusionism. Values concerning conservation encourage the adoption of assimilation, segregation and exclusion orientations and reduce the adoption of both types of integrationism and individualism. Minor effects were found regarding self-enhancement and openness to change.     

The Questionnaire of Cognitive and Affective Empathy: A Comparison Between Paper-and-Pencil Versus Online Formats in Italian Samples

The most recent conceptualizations of empathy recognize affective empathy as distinct from cognitive empathy. Consequently, instruments that assess these 2 types of empathy have been developed. Among them, the Questionnaire of Cognitive and Affective Empathy (QCAE) is a particularly promising, relatively new, self-report measure consisting of 31 items. To examine the cross-cultural adaptability of the QCAE, we investigated the psychometric properties of an Italian version in 2 samples and with 2 different formats of administration. Study 1 (n = 407) used archival data collected via paper and pencil; Study 2 (n = 285) used newly collected data, obtained with an online format. In these studies, in addition to the QCAE, 6 other instruments measuring empathy-related constructs (i.e., interpersonal competence, well-being, personality traits, emotion regulation, alexithymia, and emotion recognition) were administered, too. Data analysis focused on factor structure, internal consistency, and convergent validity. The findings of both studies provide support for the cross-cultural applicability of the QCAE, and reveal interesting associations between empathy and the other constructs under examination.     

提问类型对自传体记忆概括化的影响

自传体记忆概括化程度较高是抑郁症产生与发展的重要影响因素, 探究降低自传体记忆概括化程度的方法以缓解抑郁症状、降低抑郁复发率是心理咨询与治疗中的一个重要研究课题。基于此, 本研究选取344名初中生进行实验, 实验1对比了问题状态组与正常状态组被试的自传体记忆概括化程度, 结果发现, 问题状态组被试的正性、负性自传体记忆得分均显著低于正常组, 两组在中性自传体记忆得分上差异不显著; 实验2对比了问题取向提问和解决取向提问对问题状态下人们自传体记忆概括化程度的影响, 结果发现, 解决取向提问组被试无论是在正性、负性自传体记忆得分上还是在中性自传体记忆得分上均显著高于问题取向提问组和控制组, 问题取向提问组和控制组在各类自传体记忆得分上差异均不显著; 实验3进一步考察了解决取向提问对问题状态下不同归因风格者自传体记忆概括化程度的影响, 结果发现, 内归因组被试的正性、负性自传体记忆得分均显著高于外归因组, 在中性自传体记忆得分上, 两组被试间差异不显著。结论:与抑郁症等精神障碍患者类似, 遭受一般心理困扰个体的自传体记忆概括化程度也较高; 相比问题取向提问, 解决取向提问能较好地降低一般心理困扰者的自传体记忆概括化程度; 对于一般心理困扰者而言, 解决取向提问对内归因者自传体记忆概括化程度改善效果优于外归因者。综上, 解决取向提问可以作为心理咨询师或治疗师降低个案自传体记忆概括化程度的一种有益尝试。     

Links between social information processing in middle childhood and involvement in bullying

The aim of this study was to investigate the way in which bullies, victims, bully/victims, and those not involved process social information. A peer nomination measure of bullying and victimization was administered twice over an interval of one year. The sample consisted of 236 (126 girls and 110 boys) children at the beginning of the study (T1) and 242 children one year later (T2) (mean age: 8 years). To test how children responded when provoked, both spontaneously and after prompting, we used provocation scenarios, and to test their attributional interpretations we used ambiguous scenarios. The results showed that children not involved in bullying responded in an assertive way to provocation more often than bullies and victims, but not more than bully/victims. In general, aggressive answers diminished after prompting and irrelevant answers increased. Appealing for the help of an adult or a peer was the strategy most often chosen. When the intent of the perpetrator was ambiguous, bully/victims attributed more blame, were angrier, and would retaliate more than those not involved. Partly similar results were obtained when stably involved children were compared with those unstably involved. Suggestions for intervention are presented. Aggr. Behav. 29:116–127, 2003. © 2003 Wiley‐Liss, Inc.     

Accompagnement médical et communautaire dans un essai de prévention biomédicale : vers une nouvelle forme d’éducation ?

The recent implementation of innovative biomedical preventive approaches to combat the continued high prevalence of HIV among certain populations, has refocused attention on the question of support in the management of treatment adherence. What distinguishes these approaches from classic research on similar themes is that the populations concerned are not HIV positive. The objective of this study was to assess participant and physician satisfaction with medical and community support provided in the ANRS-IPERGAY trial. As part of this trial, individual interviews were conducted with physicians and with HIV-negative participants involved in the trial. Collective interviews and focus groups were also conducted with the participants. A content thematic analysis was performed on the full two corpuses’ data, with the aim of investigating discourse themes regarding the support offered as part of the trial. The discourse analysis of the HIV-negative participants and physicians underlined their satisfaction with many aspects of the medical and community support provided during the trial. The results were interpreted with respect to new forms of patient education necessary for the implementation of the medicalized prevention.     

A mental number line in human newborns

Humans represent numbers on a mental number line with smaller numbers on the left and larger numbers on the right side. A left‐to‐right oriented spatial–numerical association, (SNA), has been demonstrated in animals and infants. However, the possibility that SNA is learnt by early exposure to caregivers’ directional biases is still open. We conducted two experiments: in Experiment 1, we tested whether SNA is present at birth and in Experiment 2, we studied whether it depends on the relative rather than the absolute magnitude of numerousness. Fifty‐five‐hour‐old newborns, once habituated to a number (12), spontaneously associated a smaller number (4) with the left and a larger number (36) with the right side (Experiment 1). SNA in neonates is not absolute but relative. The same number (12) was associated with the left side rather than the right side whenever the previously experienced number was larger (36) rather than smaller (4) (Experiment 2). Control on continuous physical variables showed that the effect is specific of discrete magnitudes. These results constitute strong evidence that in our species SNA originates from pre‐linguistic and biological precursors in the brain.