Loneliness and relationship dispositions in emerging adults: Gender and culture as moderators

Prior research has provided evidence of the link between loneliness and the number of past sexual partners—suggesting the role of short-term intimate connections as a strategy to fulfill belongingness needs. The current study examined whether increased loneliness was associated with increased tendencies to engage in short-term sexual (sociosexuality) and romantic (emophilia) relationships with a sample of 319 Malaysian emerging adults. We also tested whether these associations varied by gender and cultural orientation. Findings from a cross-sectional survey revealed that lonelier individuals generally reported higher emophilia. The positive association between loneliness and sociosexuality, however, was only present among those who were high in vertical individualism (i.e., socialized to construe themselves as independent and different from others). Gender did not moderate either of these associations. These results suggest that the loneliness-driven short-term connections may be less readily manifested as sexual tendencies in populations that are more sexually conservative. Our findings highlight the importance of considering the role of cultural differences at the individual level in addition to the overall cultural context when examining intimate relationship tendencies.     

Is empathy associated with more prosocial behaviour? A meta-analysis

Empathy is an important prerequisite for prosocial behaviour (PB). However, different concepts and methodological tools have been used in research on the relationship between empathy and PB, leading to ambiguous results. This study used a meta-analysis to explore this relationship and to identify the moderating variables. After a literature search, 62 studies and 146 samples with 71,310 participants were included. Our random effects model revealed a positive correlation of PB with both cognitive empathy (r = .32) and affective empathy (r = .30). In addition, the relationship between empathy and PB is moderated by culture, publication type, education level, and empathy measures. Our conclusion is that there is a significant correlation between empathy and PB that is influenced by sample characteristics and methodological factors.     

MARGINALIZATION AND TRANSCENDENCE IN TRANSHUMANISM AND MINJUNG THEOLOGY

The visibility of transhumanism in pop culture reveals its dramatic advance in twenty-first-century life. The more widespread the movement becomes, the more important it is to consider how transhumanism might be made relevant to global humanity. This article orients technological progress by drawing transhumanism into conversation with minjung theology from Korea. Minjung theology offers global tech culture—and its pursuit of technological salvation—an ethical foundation through attention to Han (an emotion specific to those who suffer from individual, sociopolitical, economic, and cultural oppression but have been unable to express it adequately) and the lived reality of those who are often excluded from benefits of technological society. Working in the other direction, transhumanist perspectives on technology offer minjung theology an opportunity to expand its reach through the development of a transcendent theological perspective.     

The relationship of participation in school activities to abilities and interests in a high school student sample

Participation in school activities is hypothesized to be related to the multiple abilities and interests of high school students. The Ball Aptitude Battery (yielding 14 ability scores), Holland's Vocational Preference Inventory, and a biographical information blank (to obtain information about participation in 53 extracurricular activities) were administered to over 900 high school seniors of both sexes. Correlational and multiple regression analyses showed different patterns of activity participation to be related to different abilities and interests. The degree of relationship was generally low, generally higher for the males than for the females, and higher for interests than for abilities. Activity correlates of abilities differed for the sexes, but activity correlates of interests tended to be similar. This suggests that the same ability can result from differential participation in activities, but the same interest develops from similar activities.     

Enhanced Hippocampal CA1 LTP but Normal Spatial Learning in Inositol 1,4,5-trisphosphate 3-kinase(A)-Deficient Mice

To define the physiological role of IP₃3-kinase(A) in vivo, we have generated a mouse strain with a null mutation of the IP₃3-kinase(A) locus by gene targeting. Homozygous mutant mice were fully viable, fertile, apparently normal, and did not show any morphological anomaly in brain sections. In the mutant brain, the IP₄ level was significantly decreased whereas the IP₃ level did not change, demonstrating a major role of IP₃3-kinase(A) in the generation of IP₄. Nevertheless, no significant difference was detected in the hippocampal neuronal cells of the wild-type and the mutant mice in the kinetics of Ca²⁺ regulation after glutamate stimulation. Electrophysiological analyses carried out in hippocampal slices showed that the mutation significantly enhanced the LTP in the hippocampal CA1 region, but had no effect on the LTP in dentate gyrus (DG). No difference was noted, however, between the mutant and the wild-type mice in the Morris water maze task. Our results indicate that IP₃3-kinase(A) may play an important role in the regulation of LTP in hippocampal CA1 region through the generation of IP₄, but the enhanced LTP in the hippocampal CA1 does not affect spatial learning and memory.     

Maximum information per time unit designs for continuous online item calibration

Previous designs for online calibration have only considered examinees’ responses to items. However, the use of response time, a useful metric that can easily be collected by a computer, has not yet been embedded in calibration designs. In this article we utilize response time to optimize the assignment of new items online, and accordingly propose two new adaptive designs. These are the D-optimal per expectation time unit design (D-ET) and the D-optimal per time unit design (D-T). The former method uses the conditional maximum likelihood estimation (CMLE) method to estimate the expected response times, while the latter employs the nonparametric k-nearest-neighbour method to predict the response times. Simulations were conducted to compare the two new designs with the D-optimal online calibration design (D design) in the context of continuous online calibration. In addition, a preliminary study was carried out to evaluate the performance of CMLE prior to its application in D-ET. The results showed that, compared to the D design, the D-ET and D-T designs saved response time and accrued larger calibration information per time unit, without sacrificing item calibration precision.     

Investigation of tensile deformation mechanisms at room temperature in a new Ni-based single crystal superalloy

The deformation microstructures of a new Ni-based single crystal superalloy, M 4706, have been characterized by transmission electron microscopy after interrupted tensile tests at room temperature. It is found that besides shearing of γ′ precipitates by strongly coupled dislocations, another unusual shearing process involving a single a/2 〈1?0?1〉 matrix dislocation as well as the formation of the isolated superlattice stacking fault and Shockley loop also operates actively during initial yielding. Based on experimental observations, occurrence of these different shearing processes is discussed.     

预期错误在复合恐惧记忆提取消退中的作用

基于记忆再巩固理论的提取消退范式被证明是一种有效和颇有前景的消除不良记忆的方法。本研究将预期错误(Prediction Error, PE)应用于提取消退范式中, 采用多感官复合刺激模型(声音 + 图片)作为条件刺激, 以皮电反应作为恐惧反应指标, 考察在提取阶段不同的预期错误设置(无PE、单个负性PE、单个正性PE和多重PE)对条件性恐惧记忆提取消退效果有何差异。结果表明：无PE组和多重PE组出现了恐惧的自发恢复和重建效应, 而负性PE组和正性PE组均没有出现恐惧的自发恢复和重建效应。说明了在对复合恐惧记忆进行提取消退时, 提取阶段适当的PE才能使记忆进入再巩固过程, 随后传统消退达到抑制恐惧返回效果, 提取阶段没有PE或PE量过多都不能达到恐惧消退效果。     

移民文化适应的研究趋势

移民现象在各地的日益普及化和复杂化, 使文化适应研究变得日益重要, 并呈现出新的研究趋势。在理论模型方面, 从横断面研究向过程研究转变, 并提出相应的几种过程机制模型, 而研究对象则从笼统性范畴向具体化的群际与代际取向发展, 同时探讨不同情境的影响作用, 并关注移民文化适应与人格特征、学术成就和心理健康的关系。而对过程变量的进一步验证, 研究方法的完善及研究成果的普及化等问题则是以后研究中的急需解决的问题。同时如何把相关的研究与我国的城市化、区域流动等问题结合, 也是未来研究的主要趋向。