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221.
Attention problems (behavior problems including inattention, disorganization, impulsivity, and hyperactivity) are widely thought to reflect deficits in executive functions (EFs). However, it is unclear whether attention problems differentially relate to distinct EFs and how developmental stability and change predict levels of EFs in late adolescence. We investigated, in an unselected sample, how teacher-rated attention problems from ages 7 to 14 years related to three correlated but separable EFs, measured as latent variables at age 17. Attention problems at all ages significantly predicted later levels of response inhibition and working memory updating, and to some extent set shifting; the relation to inhibiting was stronger than the relations to the other EFs or IQ. Growth models indicated that attention problems were quite stable in this age range, and it was the initial levels of problems, rather than their changes across time, that predicted later EFs. These results support the hypothesis that attention problems primarily reflect difficulties with response inhibition.  相似文献   
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Although clinical observations suggest that health-related anxiety is present, to some extent, in a number of anxiety disorders, this relationship has not been examined empirically. The present study therefore utilized the Short Health Anxiety Inventory (SHAI) to elucidate the structure of such symptoms among patients with anxiety disorders and to empirically investigate the presence of health anxiety in various anxiety disorders. Confirmatory factor analysis yielded equivalent support for either a 2-factor or 3-factor model of the SHAI's latent structure. The measure demonstrated good reliability, convergent validity, and discriminant validity. Comparison of SHAI scores across groups of patients with various anxiety disorders revealed elevated levels of health anxiety among patients with hypochondriasis and panic disorder relative to those with other anxiety disorders. Receiver operating characteristic analyses supported the utility of the SHAI as a diagnostic tool for screening patients with hypochondriasis utilizing empirically derived cut scores. Findings are discussed in terms of cognitive-behavioral models of anxiety disorders.  相似文献   
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Negotiators' social motives (cooperative vs. individualistic) influence their strategic behaviors. In this study, the authors used multilevel modeling and analyses of strategy sequences to test hypotheses regarding how negotiators' social motives and the composition of the group influence group members' negotiation strategies. Four-person groups negotiating a 5-issue mixed-motive decision-making task were videotaped, and the tapes were transcribed and coded. Group composition included 2 homogeneous conditions (all cooperators and all individualists) and 3 heterogeneous conditions (3 cooperators and 1 individualist, 2 cooperators and 2 individualists, 1 cooperator and 3 individualists). Results showed that cooperative negotiators adjusted their use of integrative and distributive strategies in response to the social-motive composition of the group, but individualistic negotiators did not. Results from analyses of strategy sequences showed that cooperators responded more systematically to others' behaviors than did individualists. They also redirected the negotiation depending on group composition.  相似文献   
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Sharp B  Perdue C 《CNS spectrums》2007,12(9):659-662
A random sampling of patients taking a psychostimulant, an atypical antipsychotic, a combination of both, or neither were administered a brief examination to assess the possibility of abnormal motor movements induced by combining these classes of medications. Children on the combination demonstrated significant abnormalities when compared to those on either medication alone. This suggests a need for further study of neurologic risks associated with combining these medications.  相似文献   
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Learning about letters is an important foundation for literacy development. Should children be taught to label letters by conventional names, such as /bi/ for b, or by sounds, such as /b/? We queried parents and teachers, finding that those in the United States stress letter names with young children, whereas those in England begin with sounds. Looking at 5- to 7-year-olds in the two countries, we found that U.S. children were better at providing the names of letters than were English children. English children outperformed U.S. children on letter-sound tasks, and differences between children in the two countries declined with age. We further found that children use the first-learned set of labels to inform the learning of the second set. As a result, English and U.S. children made different types of errors in letter-name and letter-sound tasks. The children's invented spellings also differed in ways reflecting the labels they used for letters.  相似文献   
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Koehler and Macchi 2009 criticize the experiments presented in Newell, Mitchell, and Hayes 2008 as being “virtually irrelevant” to exemplar cuing theory. This reply addresses that interpretation and argues that the experiments dealt with issues at the heart of the theory and provided evidence highly relevant to understand how people think about low‐probability events. The role of the ‘target’ in probabilistic statements is examined, highlighting the need for further theoretical and empirical clarification of the concept. The remaining specific criticisms raised in the commentary are discussed as well. Copyright © 2009 John Wiley & Sons, Ltd.  相似文献   
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Statement of problemA variety of conceptions of qualitative research exist. This leads to a situation in which there are competing claims as to what counts as good-quality work. These competing claims revolve around the issue of criteria and how they are used to pass judgment on qualitative research. Those involved in sport and exercise sciences need to reflect on this issue with a view to generating further dialogue and a greater understanding of difference within the research community.MethodTwo ideal types of researcher, one a criteriologist the other a relativist, are constructed to illustrate how each might judge qualitative studies of different kinds.ResultsA comparison of the ways in which the criteriologist and the relativist draw on different assumptions to judge qualitative studies illustrates the constraining nature of the former and the expansive possibilities of the latter.ConclusionsCriteria should be viewed as lists of characterizing traits that are open to reinterpretation as times, conditions, and purposes change. Researchers need to adopt the role of connoisseur in order to pass judgment on different kinds of study in a fair and ethical manner.  相似文献   
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Using telephone surveys, we examined exposure to terror, coping, and mental health response in randomly selected Jewish-Israelis (n = 100) and Arab-Israelis (n = 100) living in five Israeli cities affected by terrorism. Jewish-Israelis and Arab-Israelis were randomly selected for study participation and completed telephone surveys in May 2002, following an extended string of terror attacks and hostilities. Although terrorism is designed to target Jewish-Israelis, the rates of exposure were similar in the two groups. Arab-Israelis reported using a wider array of coping strategies, yet also endorsed more frequent PTSD and more severe depression symptoms than Jewish-Israelis. We examined a variety of demographic, ethnic, and religious predictors of different coping styles and found varying results. For example, acceptance coping was best predicted by Arab-Israeli ethnicity, being female, greater religiosity, and lower education. Predictors of mental health response to terror were also examined, with Arab-Israeli ethnicity, being female, adaptation coping and collaborative coping best predicting PTSD and depression symptoms. Arab-Israelis may not have the same access to overarching sources of patriotic support that are readily available to their Jewish compatriots, and civilian and economic inequity experienced by the Arab minority may add to a sense of diminished resources. Our findings justify outreach efforts to overlooked minorities at risk for posttraumatic distress. Women seem to be at particular risk for the development of mental health symptoms following terrorism, which should also be noted for outreach purposes.  相似文献   
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