Behavioral consequences of agonistic experiences in the male S3 (Tryon Maze Dull) rat

Aggression occurring during an initial confrontation between two rats may result in significant behavioral changes in one or both animals. The present experiment was designed to study behavioral changes occurring in the course of an agonistic interaction and the consequences of winning or losing. In order to ensure winning, male CPB-S3 Tryon Maze Dull) rats were confronted with males of a more aggressive strain (Long Evans); and to ensure losing they were confronted with those of a less aggressive strain Wistar). Winners were tested against losers, this test being repeated after an interval of 17 days. Winners and losers were also tested with naive S3 opponents. Possible effects of winning and losing in nonagonistic behavioral tests were then examined. These measured open field activity, passive avoidance learning, and masculine sexual behavior. The results replicate and extend earlier findings using a different strain, indicating that significant and relatively permanent behavioral changes are induced in male winners and losers. Behavioral change is most prominent in the losers. Despite the behavioral differences between winners and losers in tests for agonistic behavior, no consistent differences were noted in any of the other behavioral tests.     

John Lind memorial symposium

John Lind, Professor of Pediatrics at the Karolinska Institute, emphasized that “the family is born in the maternity hospital.” He had a warm concern for all parents and infants and was extremely influential in both pediatric and child-rearing practices in Sweden and in the promotion of infant and caregiver-infant interaction research. Lind initiated and/or stimulated the scientific study of the infant's cry, parent-infant interactions, the role of the father in the perinatal environment, fetal and neonatal perception, and perinatal hospital practices. In many respects, his work predated contemporary emphases on perinatal coaching programs, social support (doula) during labor and delivery, parent education on childrearing, the use of ethnographic data for contemporary perinatal practices, interdisciplinary team approaches to study of infant care and development, changes in newborn nursery practices, and, above all, care and sensitivity to the initial synchronization of the parent-infant interaction system. This paper honors John Lind's contributions to our knowledge of infant development and parent-infant interaction, his influences on the field of pediatrics and the interdisciplinary study of infancy, and his commitment to enhancement of the quality of life for infants and their families. Although his life has ended, his ideas will continue to inspire and challenge the study of early human development for many years to come.     

The relation between off-job recovery and job resources: person-level differences and day-level dynamics

It is well-known that recovery from work and job resources can counteract negative effects of high job demands, but less is known about how off-job recovery and job resources are related to each other. In this two-level daily diary study, 67 employees filled out daily surveys over the course of 8 days to examine this issue. Consistent with our expectations, multilevel analyses revealed that previous day’s detachment from work is positively related to the state of being recovered before going to work, and that the state of being recovered is positively related to one’s level of job resources. Moreover, the results indicated that both person-level differences and day-level dynamics play a role in these relations. Our study highlights the importance of recovering from work in the sense that it does not only help individuals by repairing negative strain effects but can also function as a catalyst in the activation of job resources.     

注意视觉搜索研究的新进展

一个时期以来有关注意视觉搜索的研究认为,注意是以系列搜索或平行搜索方式进行的.而Wolfe(1998)通过对10多年有关研究数据整理画出的坡度曲线图则表明,注意视觉搜索坡度的整体分布是没有波峰的,表明系列搜索或平行搜索理论是错误的.而且,他新近研究又表明注意视觉搜索同样遵循认知经济原则:自由无序扫描是比系统扫描更快发现项目的方式.     

延迟时间与反应设置对任务切换的影响

采用任务线索范式,探讨了在不同反应设置条件下,延迟时间对任务切换的影响,以揭示在延迟时间内之前任务设置延迟的认知加工。以切换代价为主要测量指标,结果表明,反应设置和延迟时间的主效应均不显著,但是二者的交互作用显著。简单效应分析发现,在双向设置条件下,切换代价随着延迟时间的延长而显著减少,但是在单向设置条件下无显著差异。这说明,在任务切换中反应设置对延迟时间的影响效应具有调节作用。由此可见,在延迟时间内之前任务设置延迟的是反应设置。     

The Relationship between Workplace Incivility and Helping Behavior: Roles of Job Dissatisfaction and Political Skill

This article investigates the mediating role of job dissatisfaction in the relationship between employees’ perceptions of workplace incivility and their helping behavior, as well as the buffering role of political skill in this process. Three-wave, time-lagged data collected from employees and their supervisors revealed that employees’ exposure to workplace incivility diminished their helping behavior through their sense of job dissatisfaction. This mediating role of job dissatisfaction was less salient, however, to the extent that employees were equipped with political skill. For organizations, this study accordingly pinpoints a key mechanism—namely, unhappiness about their job situation—through which rude coworker treatment links to lower voluntary workplace behaviors among employees, and it reveals how this mechanism can be better contained in the presence of political skill.     

Asymmetrical cross-language priming effects

Three experiments were conducted to examine cross-language priming in bilinguals. The first was a cross-language primed lexical decision task experiment with Chinese-English bilinguals. Subjects made lexical decisions about primary associate targets in the two languages at the same rate, but priming occurred only when the prime was in their first language (L1), Chinese, and the target was in their second language (L2), English. Experiment 2 produced the same pattern of asymmetrical priming with two alphabetic languages, French and Dutch. In Experiment 3, the crucial stimuli were translation equivalents. In contrast to the results of Experiments 1 and 2, priming occurred across languages in both the L1-L2 and L2-L1 conditions. However, this priming was also asymmetrical, with more priming occurring in the L1-L2 condition. A tentative separate-interconnected model of bilingual memory is described. It suggests that the representations of words expressed in different languages are stored in separate memory systems, which may be interconnected via one-to-one links between same translation-equivalent representations as well as meaning-integration processes.