Parental Psychological Control and Peer Victimization among Chinese Adolescents: The Effect of Peer Pressure as a Mediator

Peer victimization is a serious problem among children and adolescents. Family and peers are two of the most proximal and influential microsystems for children. The present study examined the influence of parental psychological control and peer pressure on peer victimization. According to social learning theory and attachment theory, parent–child interactions may serve as a model of peer interactions. Therefore, we proposed the hypothesis that peer pressure functioned as a mediator in the association between parental psychological control and peer victimization. We tested this hypothesis in a sample of Chinese adolescents and examined whether this mediation model varied by gender. Participants were 2382 seventh grade students (1166 girls and 1216 boys) in Beijing, China. The results showed that both parental psychological control and peer pressure were positively associated with peer victimization in Chinese adolescents. Additionally, peer pressure partially mediated the effect of psychological control on peer victimization. Furthermore, multi-group comparisons showed that gender differences existed in the mediation model. The direct effect of psychological control on peer victimization was a little larger in boys, whereas the indirect effect was larger in girls. The findings suggest that parental psychological control contributes to peer victimization in non-Western culture as well. These findings also improve our understanding of the underlying mechanisms involved in peer victimization by interrelating family and peer factors.     

The prevalence and predictors of metabolically healthy obesity in obese rural population of China: a cross-sectional study

Till now, no evidence illustrates the prevalence and predictors of metabolically healthy obesity (MHO) in rural areas of China. The objective of this study was, firstly, to examine the prevalence of MHO in rural areas of China, and identify contributing determinants of MHO, Secondly, to comprehensively investigate to the different characteristics between MHO and metabolically unhealthy obesity (MUO). We conducted a population-based cross-sectional study of 2037 participants with obesity in rural Liaoning Province during 2012–2013. Obesity was defined as BMI ≥28 kg/m² and metabolically healthy was defined as not having the metabolic syndrome. The prevalence of MHO was 23.1%, and significantly decreased with advancing age in female group. However there was no significant tendency with advancing age in male group. Independent determinant factors for MHO were age <55 years (odds ratio [OR] 1.659; p = .001), non-current smoking (OR 1.397; p = .038), pre-menopause (OR 1.648; p = .030) and non-hyperuricemia (OR 2.317; p < .001), whereas race, gender, diet score, current drinking, marriage, sleep duration, hyperhomocysteinemia, levels of physical activity, annual income and educational status were not significant contributors. In conclusion, we found that age <55 years, non-current smoking, pre-menopause and non-hyperuricemia were identified as independent determinant factors for MHO in this population.     

Effects of model-based and memory-based processing on speed and accuracy of grammar string generation

Learners are able to use 2 different types of knowledge to perform a skill. One type is a conscious mental model, and the other is based on memories of instances. The authors conducted 3 experiments that manipulated training conditions designed to affect the availability of 1 or both types of knowledge about an artificial grammar. Participants were tested for both speed and accuracy of their ability to generate letter sequences. Results indicate that model-based training leads to slow accurate responding. Memory-based training leads to fast, less accurate responding and highest achievement when perfect accuracy was not required. Evidence supports participants' preference for using the memory-based mode when exposed to both types of training. Finally, the accuracy contributed by model-based training declined over a retention interval.     

The contributions of static visual cues, nonvisual cues, and optic flow in distance estimation

By systematically varying cue availability in the stimulus and response phases of a series of same-modality and cross-modality distance matching tasks, we examined the contributions of static visual information, idiothetic information, and optic flow information. The experiment was conducted in a large-scale, open, outdoor environment. Subjects were presented with information about a distance and were then required to turn 180 before producing a distance estimate. Distance encoding and responding occurred via: (i) visually perceived target distance, or (ii) traversed distance through either blindfolded locomotion or during sighted locomotion. The results demonstrated that subjects performed with similar accuracy across all conditions. In conditions in which the stimulus and the response were delivered in the same mode, when visual information was absent, constant error was minimal; whereas, when visual information was present, overestimation was observed. In conditions in which the stimulus and response modes differed, a consistent error pattern was observed. By systematically comparing complementary conditions, we found that the availability of visual information during locomotion (particularly optic flow) led to an 'under-perception' of movement relative to conditions in which visual information was absent during locomotion.     

蒯因彻底翻译的不确定性论题

蒯因在《语词和对象》这部著作中第一次提出了翻译的不确定性论题,这一论题的提出,引起了广泛的论证与反驳。通过分析蒯因本人对此论题的分析与论证,可以看出：翻译的不确定性论题是蒯因哲学体系中不可分割的一个部分,是对“经验论的两个教条”在语言中的继续批判,是“整体论”的逻辑发展,以及“本体论相对性”的理论前提。通过分析戴维森、普特南对此论题的回应,可以使我们对“彻底翻译不确定性论题”有一个更好的把握。     

Involuntary awareness and implicit priming: role of retrieval context

This study examined the role of retrieval context in implicit priming by manipulating percentage of word-stem index as shallow and deep processing while performing a word-stem completion task. 80 subjects were randomly divided into four groups each of 20 subjects: shallow processing or deep processing with few retrieval indices, and shallow processing or deep processing with many retrieval indices. Analysis indicated that proportion of word-stem completion was significantly higher for studied words than for nonstudied words in all four groups and that the subjects in the groups with many retrieval indices had a significantly increased proportion of word-stem completion between studied and nonstudied words than those in the groups with few retrieval indices. Postquestionnaire analysis indicated that more previously studied items were retrieved if many studied items were available during implicit word-stem completion and that only a small proportion of word-stem completion was finished with studied words by the subjects who were aware of the prior studied and test word relations in all four groups. It was concluded that having more studied words retrievable contributed to more being retrieved and that involuntary awareness had very limited influence on the priming in the implicit word-stem completion.     

朱熹论墨子之兼爱说

墨子的兼爱说被孟子攻击为“无父”。此后 ,儒家学者大多照着孟子说 ,既未能作出深入分析 ,也未能消除对兼爱无父说的疑惑。兼爱说所内涵的普遍人性理念和天地人一体的思想实际上已被宋代理学家融摄。出于严儒墨之辨的学派意识 ,朱熹重整兼爱无父说 ,同时也深入分析了兼爱说产生的主客观原因 ,对兼爱说作了较为客观的评价。     

Sharing tips with strangers: exploiting gift culture in computer gaming.

The aim of this study was to look at motivations behind altruistic behavior in virtual communities by studying the sharing of game tips by experienced gamers. We examine several possible motivations (pure altruism, generalized reciprocity, and reputation) and qualitatively analyze tip types in terms of usefulness, visibility, and skill level. We found that in games that do not support a "performance stage" for skill demonstration, players often share game tips as a strategy to attract attention. To a certain degree, reciprocity can be used to explain small favor exchanges, but earning social reputation is often a much stronger motivating factor.     

Neuronal substrates of relapse to cocaine-seeking behavior: role of prefrontal cortex

The return to drug seeking, even after prolonged periods of abstinence, is a defining feature of cocaine addiction. The neural circuitry underlying relapse has been identified in neuropharmacological studies of experimental animals, typically rats, and supported in brain imaging studies of human addicts. Although the nucleus accumbens (NAcc), which has long been implicated in goal-directed behavior, plays a critical role in this circuit, the prefrontal cortex (PFC) appears to process the events that directly trigger relapse: exposure to acute stress, cues previously associated with the drug, and the drug itself. In this paper, we review animal models of relapse and what they have revealed about the mechanisms underlying the involvement of the NAcc and PFC in cocaine-seeking behavior. We also present electrophysiological data from PFC illustrating how the hedonic, motor, motivational, and reinforcing effects of cocaine can be analyzed at the neuronal level. Our preliminary findings suggest a role for PFC in processing information related to cocaine seeking but not the hedonic effects of the drug. Further use of this recording technology can help dissect the functions of PFC and other components of the neural circuitry underlying relapse.