An item response theory analysis of the Impulsive Behaviors Checklist for Adolescents

This study used item response theory (IRT) to examine the Impulsive Behaviors Checklist for Adolescents (IBCL-A) among 6,276 (67.7% girls) Chinese secondary school students. The IBCL-A included 15 maladaptive impulsive behaviors adapted from the Revised Diagnostic Interview for Borderlines. The authors obtained the severity and discrimination parameters for each item in the IBCL-A, examined differential item functioning across gender and age groups, and tested reliability and concurrent validity of the IBCL-A IRT-scaled score. Most items in the IBCL-A were the most accurate in assessing moderate to high levels of impulsivity and discriminated well among adolescents with varied levels of impulsivity. Differential item functioning emerged in several items across gender. The IRT-scaled score showed good construct validity and incremental predictive validity. Findings demonstrate the sound psychometric properties of the IBCL-A and support the clinical utility of this scale.     

School Context Protective Factors Against Peer Ethnic Discrimination Across the High School Years

Ethnically diverse high school contexts present unique social opportunities for youth to form interethnic relationships, but they may also subject students to certain social challenges such as peer ethnic discrimination. With a sample of 1,072 high school students (55% girls; 54% Latino, 20% African American, 14% Asian, 12% White) attending 84 high schools, school context factors that protect students’ exposure to peer ethnic discrimination across the high school years were investigated with a three-level hierarchical linear model. Each spring for four consecutive years (grades 9–12), self-reported peer ethnic discrimination, interracial climate at school, and perceived school ethnic composition were assessed. At the school level, objective high school ethnic composition data were collected. Peer ethnic discrimination was found to decline slightly across the high school years. Above and beyond this decline, more positive perceptions of the school interracial climate and both objective and perceived numerical ethnic majority status predicted lower levels of peer ethnic discrimination. Taken together, the results highlight the significance of both objective (e.g., ethnic composition) and subjective (e.g., interracial climate) aspects of the school ethnic context to students’ high school social experiences.     

蒙语词汇识别中语音自动激活的ERP研究

采用快速掩蔽启动范式、Go/No-go范式和事件相关电位（ERP）技术,探讨蒙语词汇识别过程中语音自动激活的时程及对语义通达的作用。实验中要求被试执行一个额外的语义分类任务,对关键刺激不做明显的行为反应。结果发现,SOA为67ms时,语音启动在头皮的额区诱发了明显的P150和N400成分;SOA为167ms时,语音启动在头皮的额区和中央区诱发了明显的P200成分,在整个大脑皮层诱发了明显的N400成分。结果表明,语音在蒙语词汇识别的早期自动激活并促进语义的通达。     

Differential Roles of Physical Attractiveness and Earning Capability in Explaining Sense of Power among Dating Individuals in China: A Gender Comparison

This cross-sectional study examined how self-assessed physical attractiveness and earning capability were associated with individuals’ sense of power through self-perceived mating success and investment size in romantic relationships among 196 young adults (88 men, 98 women) from Nanjing, China. Using path analysis, we tested the following hypotheses: self-assessed physical attractiveness would be more strongly associated with self-perceived mating success among women than men, whereas self-assessed earning capability would be more strongly linked to self-perceived mating success among men than women (H1); relative physical attractiveness, as compared to their partners’, would be more strongly associated with men’s rather than women’s self-perceived investment size, whereas relative earning capability would be more strongly related to women’s rather than men’s investment size (H2); for both men and women, self-perceived mating success would be positively associated with sense of power, whereas self-perceived investment size would be negatively associated with sense of power (H3). Results indicated that self-perceived physical attractiveness and earning capability were associated with self-perceived mating success similarly for both men and women, failing to support H1. Whereas relative physical attractiveness was negatively associated with investment in the relationship similarly for two genders, the negative association between relative earning capacity and investment size was only significant for women. H2 was partially supported. Finally, self-perceived mating success and investment size were significantly associated with sense of power in the expected directions for both genders, lending support to our H3. Results are discussed in light of gender differences in mate preferences and the investment theory.     

“精选、精讲、精练”教学法在临床教学中的应用

临床医学是集多学科知识为一体的专业学科,具有基础知识与临床实践紧密结合的显著特性。为适应新世纪医学教育的系统性转型,配合器官系统为中心课程模式的有效运行,我院采用“精选、精讲、精练”的教学方法,通过系统性整合各专业学科课程,加强学科间的知识联系,实现基础向临床的转化、从而开辟专业课程综合化发展的道路,给学生提供最优化的教学内容,在掌握专业技术的同时,拓宽临床思维,履践医学人文精神,为培养医学生未来临床岗位胜任能力奠定坚实基础。     

空间转换在记叙文阅读情境模型建构中的作用

采用探测词和事件分割范式探讨了空间转换与事件转换分离的情况下, 空间转换在记叙文情境模型建构中的作用。实验1a重复前人研究, 探讨空间转换对阅读时间和情境模型更新的影响, 并验证在空间转换对情境模型的影响的研究中, 采用多指标探测范式的合理性。实验1b探讨在空间转换与事件转换相分离的条件下, 空间转换对情境模型更新的影响; 实验2a探讨空间转换对事件分割的影响, 并验证在空间转换对情境模型的影响的研究中, 采用事件分割范式的合理性; 实验2b探讨空间转换与事件转换相分离的条件下, 空间转换对事件分割的影响, 从而验证空间转换对情境模型更新的影响。结果表明, 当空间转换与事件转换相分离时, 不引起情境模型的更新, 事件单元是建构记叙文心理表征的核心单元, 空间转换只有在标识事件转换的情况下, 才能引发读者更新情境模型。     

Young adult drivers' sensitivity to changes in speed and driving mode in a simple vehicle simulator

The study was done to check replication of changes in sensitivity with a simple simulator as had been obtained in an experiment using the real road situation. Another purpose was to control simulator sickness which could have confounded data from testing with a simulator or in actual driving. Sensitivity of the drivers (72 healthy young adults, M age = 24 yr., SD = 5) while performing the driving task was measured in terms of subjective ratings of simulator sickness and affect, and physiological measures (i.e., galvanic skin responses and skin temperature) at different driving speeds and in driving mode conditions, using a simple vehicle simulator. Analysis showed measures of drivers' state, including simulator sickness, physiological indices, and subjective reports, increased with driving speed (30 --> 90 -->120 km/hr.) and driving mode change from the regular speed to sudden increasing to sudden decreasing speeds. Particularly, the results suggest that the increased autonomic nervous activation induces increase of rated simulator sickness. Based upon the same tendency in change of the simulator sickness and physiological state with driving speed and driving mode conditions, it was concluded that, if the results obtained from the simulator experiment can be generalized to the real situation, the simulator sickness must be considered a confounding factor. The results also suggest that the changes in human sensitivity are dependent upon aspects related to speed of a vehicle and driving mode.     

When is sociality congruent with self-care?

Kumar and Epley (2023) argue that people underinvest in spending time, effort, and money on other people, and that consumers' own well-being would improve from increased “sociality.” We pose two questions to enhance understanding of the relationship between sociality and efforts to benefit one's own well-being: (1) when will other-oriented consumption promote versus hinder consumers' own well-being, and (2) what leads consumers to embrace versus forego efforts to improve their well-being (i.e., self-care) that does not involve sociality? We propose that the degree to which the consumer is concerned about incorporating others' preferences, the magnitude of resources involved, and the temporal dynamics of consumption will be relevant factors in addressing these two questions. Future research to explore the proposed three factors and other factors will be important for consumers who seek to improve their well-being as well as marketers who seek to promote it.     

文化差异与融合：蒙古族大学生场景知觉的眼动研究

运用眼动技术对蒙古国蒙古族大学生、中国内蒙古蒙古族大学生和汉族大学生的场景知觉特点进行对比,旨在从文化差异与文化融合的角度探讨文化对认知的作用。结果发现,内蒙古蒙古族和汉族大学生的眼动指标无显著差异,均重视背景与前景物体的关系,而蒙古国大学生更加注意对前景物体的知觉,这与汉族和内蒙古蒙古族大学显著不同。文化差异影响个体的认知,文化融合会对认知产生建构作用,这种作用具有动态性。     

类别与数量空间关系识别加工中的练习效应研究

本研究通过检测20名飞行员及其控制组的视觉空间关系识别中的认知加工水平,旨在探讨视觉空间关系识别中的类别关系和数量关系加工子系统所表现出的练习效应水平的高低。研究结果表明,在参与视觉空间关系判断的两个典型加工子系统中,负责数量(坐标)空间关系判断的加工子系统随系统训练而表现出功能增强的练习效应。相对而言,涉及类别空间关系判断的加工子系统则较少受到练习的影响。研究揭示,由于受大脑神经解剖结构特点以及加工任务性质的影响,练习效应在神经网络上的分布是不平衡的。相对于类别空间关系加工子系统,数量空间关系加工子系统更多地表现出了练习效应这一典型的认知神经加工特性。