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1.
发展性阅读障碍的ERP研究   总被引:10,自引:0,他引:10  
发展性阅读障碍,ERP,语音缺陷假说,Oddball范式。行为实验已经发现,语音能力的缺损是拼音文字发展性阅读障碍的核心。然而近年来行为研究和神经生理学的研究也发现,发展性阅读障碍与基本知觉障碍有关。事件相关电位(event-related potentials ,简称ERP)作为一种独特的电生理学研究手段,从一个更为直观的角度验证了行为实验的结果,推动了发展性阅读障碍的进展。语言认知水平ERP研究表明,发展性阅读障碍者在存在语音加工和信息整合的缺陷。感知觉加工层次的ERP研究结果则不尽一致,有的研究发现,阅读障碍存在着基本的听觉加工缺陷;有的研究则发现发展性阅读障碍存在言语声音加工的缺陷,而对非言语声音的加工与正常读者没有显著差别;有的研究支持大细胞通路受损假说,发现阅读障碍在低对比度和低空间频率上存在视觉加工的缺陷,有的研究结果则没有发现发展性阅读障碍者与正常读者在不同对比度和空间频率上的差异。  相似文献   

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Hsu LM 《心理学方法》2000,5(3):333-342
The proportion of studies that use one-tailed statistical significance tests (pi) in a population of studies targeted by a meta-analysis can affect the bias of the sample effect sizes (sample ESs, or ds) that are accessible to the meta-analyst. H. C. Kraemer, C. Gardner, J. O. Brooks, and J. A. Yesavage (1998) found that, assuming pi = 1.0, for small studies (small Ns) the overestimation bias was large for small population ESs (delta < or = 0.2) and reached a maximum for the smallest population ES (viz., delta = 0). The present article shows (with a minor modification of H. C. Kraemer et al.'s model) that when pi = 0, the small-N bias of accessible sample ESs is relatively small for delta < or = 0.2, and a minimum (in fact, nonexistent) for delta = 0. Implications are discussed for interpretations of meta-analyses of (a) therapy efficacy and therapy effectiveness studies, (b) comparative outcome studies, and (c) studies targeting small but important population ESs.  相似文献   

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民族宗教学是民族学与宗教学的交叉学科,是一门新兴的人文学科,其主轴是研究民族与宗教的互动关系,其核心理念是:"族教和谐,多元互补"。近些年在中央民族大学"985工程"推动下,课题组开展了民族宗教学的学理的系统研究,推出《民族宗教学导论》专著,初步搭建了民族宗教学的理论框架。本文主要围绕着民族宗教学的研究对象、范围、方法、主要概念和理论体系展开论述,从发生学、历史学、社会学、文化学、政治学等多学科角度介绍民族宗教学的基本议题和思路,并阐述中国宗教生态模式。  相似文献   

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Induction of lucid dreams: A systematic review of evidence   总被引:1,自引:0,他引:1  
In lucid dreams the dreamer is aware of dreaming and often able to influence the ongoing dream content. Lucid dreaming is a learnable skill and a variety of techniques is suggested for lucid dreaming induction. This systematic review evaluated the evidence for the effectiveness of induction techniques. A comprehensive literature search was carried out in biomedical databases and specific resources. Thirty-five studies were included in the analysis (11 sleep laboratory and 24 field studies), of which 26 employed cognitive techniques, 11 external stimulation and one drug application. The methodological quality of the included studies was relatively low. None of the induction techniques were verified to induce lucid dreams reliably and consistently, although some of them look promising. On the basis of the reviewed studies, a taxonomy of lucid dream induction methods is presented. Several methodological issues are discussed and further directions for future studies are proposed.  相似文献   

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This paper is a response to the problematic relation between men's studies and women's studies; it is also a particular response to Harry Brod's discussion of the theoretical need for men's studies programs in his article “The New Men's Studies: From Feminist Theory to Gender Scholarship.” The paper argues that a male feminist would be more effective in a women's studies program, that the latter already includes research about the experiences of both males and females. Although future research on both genders is needed, the paper argues that there does not currently exist a gap in theory or in practice in women's studies programs, as Brod claims. The paper argues in favor of both men and women working together to strengthen and broaden women's studies programs in existence and encourages the creation of more programs and more study of gender issues.  相似文献   

8.
谢志斌 《世界宗教研究》2012,(1):109-117,194
本文探究汉语基督教伦理研究的基本思路问题,特别关注具体处境中基督教价值的公共意义问题,论文包括:第一部分,考察1980年以来汉语基督教伦理研究的主要内容,总体上看,其中包括两大方面:一是对基本伦理概念(比如人性、爱的观念)及其与中国传统思想相关观念进行比照的研究,二是实践和具体社会处境的角度,包括从基督教角度对于中国基督徒的道德生活以及全球和本土范围的社会公共问题的研究;第二部分依据相关的基督教伦理研究成果,参照中国思想资源和当代社会的道德议题,反思汉语基督教研究的处境性问题并寻求重新阐释某些基督教教义的可能性.研究采用基督教伦理研究中的实在的和处境化的进路,将之放在一个特定的文化和社会背景下并考虑到其具体和当下的条件来展开对基督教伦理思想的论述.  相似文献   

9.
Four programs of research in scientific communication   总被引:1,自引:0,他引:1  
Selected studies of scientific communication, philosophy and sociology of science, sociology of knowledge, and information science are reviewed according to the assumptions they make about scientific information. Based on these assumptions and their historical order of development, the studies are organized into four distinct “programs” of research: artifact studies, user studies, network studies, and laboratory studies. The four programs represent a continuum of definitions of information, from the information-as-commodity definition that is embodied in the artifact studies, to the contextual, meaning-based definition that is characteristic of the laboratory studies. They also provide a rich framework for a renewal of research interest in this area among communication scholars and others interested in the social impacts of information. “When I studied scientific communication back in the sixties, it was a great field to be in ... we thought we knew just about everything there was to know about scientific communication.”1 Bill Paisley, 1985 Leah A. Lievrouw is assistant professor in the Department of Communication at Rutgers University. Dr. Lievrouw received her PhD from the Annenberg School of Communications at the University of Southern California. Her research interests include scientific communication and the social aspects of telecommunications technologies.  相似文献   

10.
Male versus female leaders: A comparison of empirical studies   总被引:2,自引:0,他引:2  
One of the popular reasons given for differential treatment of women in management stems from stereotyping females as ineffective leaders. Thirty-two female leadership studies were reviewed. Trait, style, and contingency leadership theories were used as a framework to analyze the studies. The trait studies consistently supported the traditional attitude that women lack adequate leadership characteristics. Both style and contingency studies were split as to whether women were effective or ineffective leaders. Most student studies supported the commonly held beliefs about women's leadership style and effectiveness. On the other hand, managerial studies did not support the typical female stereotyping; this suggests the possibility of a socializing process modifying practicing managers' attitudes towards women, and it also raises a question about the validity of stereotyping as a discriminatory causal factor in managerial environments. Before more conclusive statements can be made, further sex-related leadership research controlling for subjects and methodology is suggested.  相似文献   

11.
We reviewed all school-based experimental studies with individuals 0 to 18 years published in the Journal of Applied Behavior Analysis (JABA) between 1991 and 2005. A total of 142 articles (152 studies) that met review criteria were included. Nearly all (95%) of these experiments provided an operational definition of the independent variable, but only 30% of the studies provided treatment integrity data. Nearly half of studies (45%) were judged to be at high risk for treatment inaccuracies. Treatment integrity data were more likely to be included in studies that used teachers, multiple treatment agents, or both. Although there was a substantial increase in reporting operational definitions of independent variables, results suggest that there was only a modest improvement in reported integrity over the past 30 years of JABA studies. Recommendations for research and practice are discussed.  相似文献   

12.
Abstract

Previous research suggests that using Fitts’ law; attentional focus or challenge point framework (CPF) is beneficial in balance control studies. A scoping review was conducted to examine studies that utilized these motor behavior concepts during balance control tasks. An extensive literature search was performed up to January 2018. Two independent reviewers conducted a study selection process followed by data extraction of the search results. Forty-six studies were identified, with 2 studies related to CPF, 12 studies related to Fitts’ law and 32 studies related to focus of attention. The CPF appears to be a useful method for designing a progressive therapeutic program. Fitts’ law can be used as a tool for controlling the difficulty of motor tasks. Focus of attention studies indicate that adopting an external focus of attention improves task performance. Overall, studies included in this review report benefit when using the selected motor behavior concepts. However, the majority (>80%) of studies included in the review involved healthy populations, with only three clinical trials. In order to ascertain the benefits of the selected motor behavior concepts in clinical settings, future research should focus on using these concepts for clinical trials to examine balance control among people with balance impairments.  相似文献   

13.
There has been a vigorous debate for decades concerning the heritability of intelligence. In recent years, the debate has been focused on whether the components of IQ variability change with age and on separating environmental effects into shared and unshared components. Citing evidence from adoption studies, studies comparing identical and fraternal twins, and studies of identical twins raised apart, some prominent psychologists have concluded that the shared environment has a significant effect on the intelligence of children but little or no effect on the intelligence of adults. In this article, the evidence from such studies is reviewed. The article reaches the conclusion that while there is some evidence from adoption studies supporting the claim that shared environment has little or no effect on adult intelligence, that evidence is inconclusive and is inconsistent with evidence from twin studies and from studies of identical twins reared apart. (PsycINFO Database Record (c) 2012 APA, all rights reserved).  相似文献   

14.
The hypothesis that pretend play facilitates the creative thought process in children has received a great deal of attention. In a literature review, Lillard et al. (2013, p. 8) concluded that the evidence for this hypothesis was “not convincing.” This article focuses on experimental and training studies that have tested this hypothesis. As categorized by Lillard et al., the majority of these studies failed to find evidence for the hypothesis. Furthermore, they contend that several of the studies that found evidence for the hypothesis were flawed either methodologically or statistically. This review of the evidence relative to this hypothesis included a larger number of studies, and, more important, screened studies for statistical power. The conclusion reached is that that the hypothesis is likely true. Additionally, it is shown that Lillard et al.’s criticisms of the studies that found evidence for the hypothesis do not stand up on close examination  相似文献   

15.
Only five studies of patients met criteria for this review. Four of the five had a good clinical outcome. The only one without efficacy reported no enhancement of the target waveform. Of the other four, two reported some enhancement, whereas two gave no details about changes in the target waveform. There were 10 studies of nonpatients with generalized anxiety, of which eight had a good outcome. The decrease of anxiety in these eight studies was correlated with enhancement of the target waveform in five. Three of the eight had no increase of alpha, showing placebo plays a part in neurotherapy. There were nine studies of nonpatients with phobic anxiety, of which six had enhancement of the target waveform accompanied by good outcome. The remaining three studies had poor outcome in spite of enhancement of the target waveform.  相似文献   

16.
The purpose of this review is to assess the range of overall accuracies for Attention Deficit/Hyperactivity Disorder (ADHD) behavior rating scales evaluated in clinical validation studies. Studies were characterized according to the evidence standards of the American Academy of Neurology (AAN). Studies were excluded due to major design problems such as overfitting by discriminant analysis. The 13 included evaluations of rating scales revealed overall accuracy in the range of 59%-79% with a pooled mean of 69% (+/-7%, standard deviation) and a pooled sample size of 2228 subjects from nine studies. While some of the excluded studies demonstrated higher overall accuracies (>79%), these studies were observed to have factors in experimen tal design and statistics that are known to unduly inflate accuracy. We recommend further research following the full AAN standards, namely well-designed, blinded, pro spective studies of rating scales applied to clinically representative samples evaluated with a clinical standard.  相似文献   

17.
Long-Term Psychoanalytic Treatments (LTPT) include both long-term psychoanalytic psychotherapy (LTPP) and psychoanalysis (PsAn). Current opinion seems to be that there is some evidence for the effectiveness of LTPP, but none for that of PsAn. This may be due in part to researchers not balancing the level of evidence of randomized controlled studies (RCTs), cohort studies, and pre-post studies with patients' acceptance of these various research designs used in studying the effectiveness of LTPT. After a review of the merits of eight possible control conditions for LTPT in RCTs and cohort studies, and a consideration of the limitations and merits of pre-post studies, it was found that RCTs pair high levels of evidence with limited degrees of patient acceptance, especially where PsAn is concerned. Cohort studies appear to provide at most a moderate level of evidence. Their acceptability is hardly better than that of RCTs, as it depends on the acceptability of control conditions similar to those of RCTs. The acceptability of pre-post studies is much better, but they can provide, at most, a moderate level of evidence. Apart from randomization, they can meet all methodological criteria for high-quality research (often they do not, but there are ways to correct this). In summary, in the long-term treatment of complex mental disorders with LTPT, RCTs often pair a high level of evidence with limited patient acceptance of the method. Compared to RCTs, cohort studies show a lower level of evidence without much gain in acceptability. Pre-post studies pair the highest level of acceptability with the lowest level of evidence of the three designs. Limited acceptability is not to be confused with no acceptability, nor moderate level of evidence with none.  相似文献   

18.
Detecting anxiety is essential in both help-giving settings and in everyday social relationships. The studies reported here represent a follow-up to an earlier set of studies in which observers (raters) accurately identified others' (expressers') state anxiety using either video-only cues or audio-video cues. The earlier studies had included expressers who were repressors and nonrepressors, while the present studies included only nonrepressors. Observers viewedheard selected segments of previously videotaped expressers' self-reported high and low state anxiety experiences. Surprisingly, unlike the earlier studies, state anxiety was significantly inaccurately evaluated when video-only cues were used, but when audio cues were available, state anxiety was correctly identified. Information in video-only cues seemed to mislead observers since low compared with high state anxiety was rated as more anxious. These studies, and the significant comparison between studies with audio cues present and with audio cues absent, indicate the impact of auditory cues in detecting state anxiety in others.  相似文献   

19.
Parental divorce and the well-being of children: a meta-analysis.   总被引:21,自引:0,他引:21  
This meta-analysis involved 92 studies that compared children living in divorced single-parent families with children living in continuously intact families on measures of well-being. Children of divorce scored lower than children in intact families across a variety of outcomes, with the median effect size being .14 of a standard deviation. For some outcomes, methodologically sophisticated studies yielded weaker effect sizes than did other studies. In addition, for some outcomes, more recent studies yielded weaker effect sizes than did studies carried out during earlier decades. Some support was found for theoretical perspectives emphasizing parental absence and economic disadvantage, but the most consistent support was found for a family conflict perspective.  相似文献   

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