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351.
Soon-Cheol?Chung Gye-Rae?TackEmail author Ik-Hyeon?Kim Soo-Yeol?Lee Jin-Hun?Sohn 《Integrative psychological & behavioral science》2004,39(3):153-165
This study investigated what effect a 30% oxygen administration had on visuospatial cognitive performance and cerebral activation
and lateralization using fMRI. Eight college students were selected as the subjects for this study. An oxygen dispenser that
provided 21% and 30% oxygen at a constant rate of 8L/min was developed. In order to measure the performance level of visuospatial
cognition, two psychological tests were also developed. The experiment consisted of two runs, one for a visuospatial cognition
task with normal air (21% oxygen) and the other for a visuospatial cognition task with hyperoxic air (30% oxygen). Functional
brain images were taken with a 3T MRI using the single-shot EPI method. The results of the visuospatial behavioral analysis
reveal that accuracy rates were enhanced with 30% oxygen administration when compared to 21% oxygen. There were more activations
observed at the bilateral occipital, parietal, and frontal lobes with 30% oxygen administration. However, decreased cerebrum
lateralization was observed with 30% oxygen administration in the same regions compared with 21% oxygen administration. Thus,
it is concluded that the positive effect on the visuospatial cognitive performance level by the highly concentrated oxygen
administration resulted from an increase of cerebrum activation and a decrease of cerebrum lateralization. 相似文献
352.
Muntaner C Van Dussen DJ Li Y Zimmerman S Chung H Benach J 《Psychological reports》2006,98(2):585-601
To investigate the relationships among the nursing home work environment, emotional strain, and depression in Nursing Assistants in Ohio and West Virginia, this cross-sectional study was conducted with 395 Nurse Assistants in 49 nursing homes in Ohio and West Virginia. Organizational attributes were measured independently at the individual and organizational levels. Multilevel modeling techniques were used to analyze the data. Our methods examined nursing home organizational structure (ownership type, managerial style), and work organization (emotional strain) was examined in relation to the prevalence of depression among nursing assistants. Our findings suggest workplace emotional strain and age are associated with increased odds of depression. Implications of our work include that work in nursing homes for the environment it fosters has a strong effect on emotional strain and depression among Nursing Assistants. 相似文献
353.
Ahearn WH Clark KM Gardenier NC Chung BI Dube WV 《Journal of applied behavior analysis》2003,36(4):439-448
Basic research has shown that behavioral persistence is often positively related to rate of reinforcement. This relation, expressed in the metaphor of behavioral momentum, has potentially important implications for clinical application. The current study examined one prediction of the momentum metaphor for automatically reinforced behavior. Participants were 3 children who had been diagnosed with an autism spectrum disorder and who engaged in stereotypic behavior maintained by automatic reinforcement. Results suggested that stereotypic behavior was more resistant to disruption following periods of access to preferred stimuli delivered on a variable-time schedule than following periods without access to preferred stimuli. The implications of these findings for the treatment of automatically reinforced behavior are discussed. 相似文献
354.
The authors examined the relationship of authoritarian, authoritative, and permissive parenting styles and the number of years in the United States with self-perception (academic competence, morality, and self-reliance) as recalled by Korean American college students (N = 144). Authoritative parenting behaviors were most common in Korean American families, followed by authoritarian behaviors, with permissive behaviors a distant 3rd. Authoritative parenting styles and the number of years lived in the United States were predictive of higher academic competence. Authoritarian and permissive parenting styles were predictive of lower self-reliance, whereas number of years lived in the United States was related to higher self-reliance. Those findings provide partial support for generalizing D. Baumrind's (1971) model of parenting styles to Korean American families, and the findings demonstrate the importance of considering acculturation issues in parenting studies. 相似文献
355.
It is now well-documented that exposures to uncontrollable (inescapable and unpredictable) stress in adulthood can have profound effects on brain and behavior. Converging lines of evidence from human and animal studies indicate that stress interferes with subsequent performances on a variety of hippocampal-dependent memory tasks. Animal studies further revealed that stress impedes ensuing induction of long-term potentiation (LTP) in the hippocampus. Because the hippocampus is important for key aspects of memory formation and because LTP has qualities congruent to an information storage mechanism, it is hypothesized that stress-induced modifications in hippocampal plasticity contribute to memory impairments associated with stress. Recent studies provide evidence that the amygdala, a structure important in stress- and emotion-related behaviors, plays a necessary role in the emergence of stress-associated changes in hippocampal LTP and memory. Early life stress also alters hippocampal plasticity and memory in a manner largely consistent with effects of adult stress exposure. This review focuses on endocrine-system-level mechanisms of stress effects in the hippocampus, and how stress, by altering the property of hippocampal plasticity, can subsequently influence hippocampal memory. 相似文献
356.
Sanghag Kim Jamie Koenig Nordling Jeung Eun Yoon Lea J. Boldt Grazyna Kochanska 《Journal of abnormal child psychology》2013,41(1):43-56
Effortful control (EC), the capacity to deliberately suppress a dominant response and perform a subdominant response, rapidly developing in toddler and preschool age, has been shown to be a robust predictor of children’s adjustment. Not settled, however, is whether a view of EC as a heterogeneous rather than unidimensional construct may offer advantages in the context of predicting diverse developmental outcomes. This study focused on the potential distinction between “hot” EC function (delay-of-gratification tasks that called for suppressing an emotionally charged response) and more abstract “cool” EC functions (motor inhibition tasks, suppressing-initiating response or Go-No Go tasks, and effortful attention or Stroop-like tasks). Children (N?=?100) were observed performing EC tasks at 38 and 52 months. Mothers, fathers, and teachers rated children’s behavior problems and academic performance at 67, 80, and 100 months, and children participated in a clinical interview at 100 months. Structural Equation Modeling (SEM) analyses with latent variables produced consistent findings across all informants: Children’s scores in “hot” EC tasks, presumably engaging emotion regulation skills, predicted behavior problems but not academic performance, whereas their scores in “cool” EC tasks, specifically those engaging effortful attention, predicted academic performance but not behavior problems. The models of EC as a heterogeneous construct offered some advantages over the unidimensional models. Methodological and clinical implications of the findings are discussed. 相似文献
357.
Plagiarism by students is a common and worldwide phenomenon with a significant impact on our society. Numerous studies on the pervasive nature of plagiarism among students have focused on the behavioral aspects of plagiarism and how to prevent it. Based on an empirical study of a sample of 463 eighth graders in Hong Kong, this article offers an analytical model to understand the ethical decision-making process in plagiarism among students. Using this model, students' plagiaristic behavior can be analyzed in terms of their moral judgment, moral intensity, and perceived risks. 相似文献
358.
Young Eun Chang 《Journal of child and family studies》2013,22(7):987-999
The relation of mothers’ attitudes on the effects of maternal employment on children, psychological well-being, sensitivity of the mother, and children’s socioemotional development were examined in mothers who worked full time (consistently) and mothers who were unemployed during their children’s early years of growth from 6 months of age. Longitudinal observations of 1,213 mothers and children from age 1 to 36 months from the National Institute of Child Health and Human Development (NICHD) Study of Early Child Care were analyzed using structural equation models. Mothers and children benefited when maternal attitudes were consistent with the mothers’ actual employment status. Among consistently employed mothers, those with positive attitudes about employment had better psychological well-being. When mothers who were unemployed, they believed that maternal employment would have positive consequences for their children’s development, they preferred working outside home and they were more likely to show a low level of psychological well-being and poor quality of mother-child relation. Additionally, maternal well-being mediated the relation between a mother’s attitudes and a child’s social competence. For both groups, better psychological well-being of mothers was positively related to better child’s socioemotional outcome. Maternal sensitivity, however, did not mediate the relation between maternal attitudes and child’s social outcomes. The findings shed light on the need for a sensitive measure of characterizing mothers who work versus those who stay at home in order to better understand the effects on a child’s development. 相似文献
359.
Drama's appeal is driven in part by dispositions toward story characters and the deservingness of fortunes that befall them. This article reports the results of longitudinal research testing disposition theory's ability to predict viewer responses to daytime soap opera. A student sample completed a survey asking them to evaluate characters over 10 successive weeks. Measures of character morality and positive/negative outcomes for behaviors were used to predict the results of both viewer enjoyment and official Nielsen ratings in representative independent surveys covering the same 10 weeks. Consistent with disposition theory logic, an a priori specified interaction of character morality and behavioral outcome valence—the Disposition Vector Model—predicted higher Nielsen ratings and increased viewer enjoyment when benefaction/debasement befell characters morally deserving of these outcomes. Although well supported in short-term studies, to our knowledge this is the first study to support disposition theory over extended exposure to soap operas and predicting results in independent data sources. 相似文献
360.
We investigated the effects of transparent fraction names on children's reasoning about fractions. U.S. and Korean first and second graders were tested using verbal and nonverbal measures. On a verbal task, Korean students were worse at interpreting their own conventional fraction names than interpreting modified terms with a more familiar word for parts. This indicates that Korean fraction names may not be as transparent as previously claimed (e.g., Miura et al., 1999). On nonverbal tasks, such as matching equivalent pictures of fractions and solving mixed-number problems using objects, students from both nations performed above chance and about equally well. However, U.S. students were more likely than Korean students to misinterpret a sharing task in terms of whole numbers, leading to significantly below-chance performance in the former group. 相似文献