一种特殊的计算机指点装置追踪球的操作活动研究

探讨在指点定位中目标方向、大小和距离对食指和拇指操纵追踪球的运动时间的效应 ,并由此建立了两种追踪球的菲茨模型。用绩效指数比较了不同指点装置的操作绩效 ,对追踪球的优化设计提出了建议。     

学习障碍儿童社会技能缺失成因假说

研究者一直试图探讨学习障碍与社会技能缺失之间的联系,从而揭示导致学习障碍儿童社会技能缺失的原因。这一研究领域出现了四种假说：因果假说、共存假说、相关假说和同病率假说。     

亲子支持对老年人主观幸福感的影响机制

采用自编的“老年人亲子支持问卷”、“老年人恩情感问卷”和已有量表,对来自4个省市的288名53-87岁的老年人进行问卷调查。结果表明,亲子支持通过影响老年人的自尊感、孤独感、恩情感,进而影响其主观幸福感。其中接受支持对自尊感、孤独感、恩情感产生积极的影响效应;给予支持对老年人的自尊感产生积极的影响效应。     

Examining the Association Between Body Mass Index and Weight Related Quality of Life in Black and White Women

Obesity not only increases risk for morbidity/mortality, but also impacts the quality of life of obese individuals. In the United States, black women have the highest prevalence of obesity of any other group with approximately 80% of black women over age 20 having a body mass index (BMI)????25?kg/m². We aimed to examine the association between BMI and quality of life in this high risk population compared to this association in white women, using the Impact of Weight on Quality of Life (IWQOL)-Lite questionnaire. Data from 172 black women (mean BMI?=?35.7; age?=?40.5) and 171 white women (mean BMI?=?35.5; age?=?40.4) were collected between 2000 and 2010 analyzed in 2010. The mean IWQOL-Lite total score was 81.6 for black women compared to 66.9 for white women, a statistically significant difference. Hierarchical linear regression models revealed a significant BMI-by-race interaction indicating that the relationship between BMI and IWQOL-Lite score was moderated by race. Our findings suggest notable differences in weight-related quality of life in black and white women. At similar BMIs, black women consistently reported better quality of life than white women on all IWQOL-Lite subscales. The greatest difference in IWQOL-Lite scores between black and white women was seen in the self-esteem subscale. Additional research is needed to understand how to incorporate the weight perspectives of black women into weight management messages and interventions.     

Economic inequality is linked to biased self-perception

People's self-perception biases often lead them to see themselves as better than the average person (a phenomenon known as self-enhancement). This bias varies across cultures, and variations are typically explained using cultural variables, such as individualism versus collectivism. We propose that socioeconomic differences among societies--specifically, relative levels of economic inequality--play an important but unrecognized role in how people evaluate themselves. Evidence for self-enhancement was found in 15 diverse nations, but the magnitude of the bias varied. Greater self-enhancement was found in societies with more income inequality, and income inequality predicted cross-cultural differences in self-enhancement better than did individualism/collectivism. These results indicate that macrosocial differences in the distribution of economic goods are linked to microsocial processes of perceiving the self.     

西藏本教是藏传佛教最典型的代表——关于岷江上游本波教与钵第教的讨论

本文在历代藏学家就本波教与钵第教比较研究的基础上,通过对岷江上游本波教与钵第教宗教实体构成要素间的比较,以及对岷江上游本波教与钵第教信众的教派认同程度的分析,认为本波教与钵第教既有区别又有联系,共同构成了略别于汉传佛教的藏传佛教。从本波教的本土文化成分和对古印度佛教的藏族化程度来看,本波教是藏传佛教最典型的代表。     

The association between infants' self-regulatory behavior and MAOA gene polymorphism

Self-regulatory behavior in early childhood is an important characteristic that has considerable implications for the development of adaptive and maladaptive functioning. The present study investigated the relations between a functional polymorphism in the upstream region of monoamine oxidase A gene (MAOA) and self-regulatory behavior in a sample of Chinese infants at 6 months of age. Self-regulation was assessed by observing infants' behavior of orienting visual attention away from a threatening event in the laboratory situation. The results indicated that regulatory behavior was associated with the functional MAOA gene polymorphism in girls, but not boys. Girls with 4/4 genotypes displayed significantly higher regulation than girls with 3/3 and 3/4 genotypes. The present study provided evidence for gender differences on the role of MAOA gene polymorphism in socioemotional functioning in the early years.     

Normal body, beautiful body: discrepant perceptions reveal a pervasive 'thin ideal' from childhood to adulthood

We aimed to determine the developmental trajectory for the 'thin ideal' by evaluating discrepancies in objective ratings of female body attractiveness and normality in a sample of children and adults. One hundred and sixty Australian middle class male and female participants from four different age groups (range: 4-26 years) viewed sets of photos depicting female bodies that varied systematically on the dimension of width. Six photo sets were presented. Participants ranked three sets according to their perceptions of body normality and ranked the other three sets in terms of body attractiveness. Results indicated that for all age groups, attractiveness ratings were significantly thinner than normality ratings. These findings indicate that the thin ideal is already present in primary school children and remains stable into adulthood, with concerning implications for body dissatisfaction and related disorders. Further research is required to clarify the developmental origins of preferences for thinner-than-normal female bodies.     

On the theoretical error bound for estimating psychometric functions

The theoretical limits to the amount of error, or the Cramer-Rao bounds, were derived for estimating psychometric functions. These theoretical error bounds were compared with the variability of psychometric functions estimated from human as well as computer-simulated observers. For the simulated observers, due to the limited efficiency of the sampling strategies, including the placement of the signals and the distribution of the trials, the variances of the estimated parameters are seven times the theoretical bound for threshold and 22 times that for slope. For the human observers, the variance is 18 times the theoretical bounds for threshold and 80 times that for slope. Therefore, a major portion of the variances (60% for threshold and 73% for slope) for the human observers is associated with factors other than sampling strategies. Further improvement of the accuracy for estimating psychometric functions will depend on not only optimizing the sampling strategy, but also better understanding the various sources of error related to the behavior of human observers.     

数量信息不能引发符号的空间表征

该研究为了考察数量信息能否独立引发符号的空间表征,采用若干面积不等的圆和点数不同的点阵作为实验刺激,让被试用左右手按键,判断圆面积的大小,以及点阵点数的多少。结果发现,无论在面积大小判断任务中,还是在点数数量判断任务中,都没有产生SNARC效应。这说明,单纯的数量信息,并不能引发符号进行空间表征。这一结果也在一定程度上支持了Gevers等人的假设:数字的空间表征,是由数字的顺序性信息决定的,而并非是由其数量信息决定的。