Convergence between attention variables and factors of psychometric intelligence in older adults

The purpose of the present study was to examine the hypothesis that individual differences on measures of attention would converge with select factors of psychometric intelligence, especially fluid intelligence and short-term acquisition and retrieval. A sample of 83 elderly adults $\text{(}\text{X}\text{= 71}\text{years}\text{)}$ was administered a battery of 17 psychometric ability tests. Tests were selected to mark four psychometric ability factors (Cattell and Horn's dimensions of fluid and crystallized intelligence, short-term acquisition and retrieval, and perceptual speed). Also, seven tasks representing four aspects of attention—decoding processes, selective attention, attention switching, and concentration—were administered. A confirmatory factor analysis was conducted to examine the relationships among the four psychometric ability factors and 11 variables obtained from the attention tasks. Results were only partially consistent with the hypothesized pattern of convergence. Two attention measures had significant loadings on a fluid-type intelligence factor, and one had a marginally significant loading on a short-term memory factor. In general, the greatest convergence occured between attention variables and the ability factor of Perceptual Speed. Results were discussed with respect to previous research on psychometric abilities and cognitive processes, the theory of fluid-crystallized intelligence, and their implications for understanding intellectual aging.     

Gender Differences in Children’s Hero Attributions: Personal Hero Choices and Evaluations of Typical Male and Female Heroes

The current study investigated gender differences in the personal hero choices, hero attributions, and characteristics attributed to “typical” male and female heroes of children living in the Midwestern United States (N = 103; mean age = 10 years). Questionnaires were completed in a school setting. The majority of girls chose heroes personally known to them; boys chose personal and public figures equally often. Most boys chose same gender heroes; girls’ nominations were mixed. Gender differences were also seen in the characteristics children attributed to their own heroes and in their conceptions of “typical” male and female heroes. Children rated same-gender “typical” heroes more positively on many attributes, except for stereotypically masculine characteristics. Gender socialization, stereotypes, and in-group favoritism were used to explain these findings. Portions of this project were presented at the 2003 Society for Research on Child Development Biennial Meeting. We wish to thank Anna V. Persson and Sara E. Goldstein for their assistance on the early development of this study. We also appreciate the children, teachers, guidance counselors and principals at Leipsic Local School and Pandora-Gilboa Elementary School for making this study possible. Inquiries about this study should be addressed to Shayla Holub, .     

权变视角下的情绪劳动:调节变量及其作用机制

调节变量是近年来情绪劳动研究关注的重点问题之一。实证研究显示,反映员工个体特征、工作情境特征的多组变量以及文化情境对情绪劳动效应具有显著的调节作用。权变视角下的情绪劳动研究发现:(1)展现规则在组织、行业、文化三个不同水平影响个体在工作场所的情绪表达;(2)表层扮演潜在的消极效应可以借助个体内在的保护机制或通过组织管理干预被削弱、消除,甚至是转化为积极的力量;(3)深层扮演的积极效应具有较高的跨人群、跨情境稳定性;(4)文化情境对情绪劳动作用过程具有重要的约束作用。在一定条件下,情绪劳动要求、情绪劳动行为都可以成为有益于员工的组织生活要素。     

Enhancing Justice?

This article focuses on the follow question: Are human enhancement technologies likely to be justice impairing or justice promoting? We argue that human enhancement technologies may not be inherently just or unjust, but when situated within obtaining social contexts they are likely to exacerbate rather than alleviate social injustices.     

Development of preferences for the human body shape in infancy

Two studies investigated the development of infants' visual preferences for the human body shape. In Study 1, infants of 12, 15 and 18 months were tested in a standard preferential looking experiment, in which they were shown paired line drawings of typical and scrambled bodies. Results indicated that the 18-month-olds had a reliable preference for the scrambled body shapes over typical body shapes, while the younger infants did not show differential responding. In Study 2, 12- and 18-month-olds were tested with the same procedure, except that the typical and scrambled body stimuli were photographic images. The results of Study 2 again indicated that only the 18-month-olds had a reliable preference for the scrambled body shapes. This finding contrasts sharply with infants' precocious preferences for human faces, suggesting that infants' learning about human faces and human bodies follow different developmental trajectories.     

Differential dynamics of spatial and non-spatial stimulus-response compatibility effects: a dual task LRP study

Choice reaction times are shorter when stimulus and response features are compatible rather than incompatible. Recent studies revealed that spatial compatibility effects in Simon tasks are strongly attenuated when there is temporal overlap with a different high-priority task. In contrast, non-spatial variants of the Simon task appear to be unaffected by task overlap. The present study used the lateralized readiness potential (LRP) within a dual task design to elucidate the dynamics underlying these differential effects for a color and a spatial variant of the Simon task. In the color version there was no sign of early response priming by irrelevant stimulus features in the LRP. The color compatibility effect was independent of task overlap and reflected in the LRP onset latency. In contrast, in the spatial version, priming by irrelevant stimulus location showed up and was mirrored by early LRP activation. Response priming and the corresponding Simon effect, however, were present only in case of little temporal overlap with the primary task. The absence of spatial compatibility effects at strong temporal overlap suggests that response conflicts due to stimulus-related priming depend on the availability of processing resources.     

高校教师组织承诺结构维度及其测量

本研究通过访谈、文献分析、问卷调查,采用探索性因子分析和验证性因子分析等方法,探讨了高校教师组织承诺的结构维度.结果显示,高校教师的组织承诺结构由感情承诺、理想承诺、关系承诺、条件承诺、持续承诺和责任承诺六个因子构成.     

A comparative approach to dogs’ (Canis familiaris) and human infants’ comprehension of various forms of pointing gestures

We investigated whether dogs and 2-, and 3-year-old human infants living, in some respects, in very similar social environments are able to comprehend various forms of the human pointing gesture. In the first study, we looked at their ability to comprehend different arm pointing gestures (long cross-pointing, forward cross-pointing and elbow cross-pointing) to locate a hidden object. Three-year-olds successfully used all gestures as directional cues, while younger children and dogs could not understand the elbow cross-pointing. Dogs were also unsuccessful with the forward cross-pointing. In the second study, we used unfamiliar pointing gestures i.e. using a leg as indicator (pointing with leg, leg cross-pointing, pointing with knee). All subjects were successful with leg pointing gestures, but only older children were able to comprehend the pointing with knee. We suggest that 3-year-old children are able to rely on the direction of the index finger, and show the strongest ability to generalize to unfamiliar gestures. Although some capacity to generalize is also evident in younger children and dogs, especially the latter appear biased in the use of protruding body parts as directional signals.     

The role of the auditory brainstem in processing linguistically-relevant pitch patterns

Historically, the brainstem has been neglected as a part of the brain involved in language processing. We review recent evidence of language-dependent effects in pitch processing based on comparisons of native vs. nonnative speakers of a tonal language from electrophysiological recordings in the auditory brainstem. We argue that there is enhancing of linguistically-relevant pitch dimensions or features well before the auditory signal reaches the cerebral cortex. We propose that long-term experience with a tone language sharpens the tuning characteristics of neurons along the pitch axis with enhanced sensitivity to linguistically-relevant, rapidly changing sections of pitch contours. Though not specific to a speech context, experience-dependent brainstem mechanisms for pitch representation are clearly sensitive to particular aspects of pitch contours that native speakers of a tone language have been exposed to. Such experience-dependent effects on lower-level sensory processing are compatible with more integrated, hierarchically organized pathways to language and the brain.     

医患双方对医患关系认知情况的调查分析

为了解医患双方对医患关系的认知情况,对江西吉安市五家医院的医生和住院患者采取整群随机抽样法进行随机问卷调查。发现医患双方对医患关系性质、发展趋势及医患冲突的主要诱因、责任主体、主要解决途径的认识状况均存在显著性差异。这种差异直接影响医患关系发展。如何解决医患双方认知的差异是重构和谐医患关系的根本措施。