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991.
The ability to differentiate possible events from impossible ones is an invaluable skill when reasoning about claims that transcend the perceptual evidence at hand, yet preschool-aged children do not readily make this differentiation when reasoning about physically extraordinary events [Shtulman, A., &; Carey, S. (2007). Improbable or impossible? How children reason about the possibility of extraordinary claims. Child Development, 78, 1015–1032]. The present study sought to determine whether this failure stems from deficits in domain-specific knowledge or deficits in the domain-general procedure by which possibility judgments are made. Participants (48 children aged 4-9 years olds and 16 adults) were asked to judge the possibility of three types of extraordinary events – physical, psychological, and biological – and to justify their judgments of impossibility. Developmental changes in the ability to differentiate improbable events from impossible events were qualitatively similar across domains. Moreover, participants’ propensity to judge improbable events possible was significantly correlated with the quality of their justifications, both within and across domains. These findings suggest that modal development involves a domain-general change in how modal claims are evaluated. 相似文献
992.
以193名学前儿童和291名一到三年级小学生为研究对象, 比较了不同年级、不同识字量儿童在语音意识、语素意识、快速命名、视觉技能和正字法意识方面的差异。结果显示, 不同年级、不同识字量儿童分别在语音意识和语素意识的不同层面存在差异, 学前主要表现在音节删除和语素建构任务中, 小学阶段表现在韵母识别、音位删除以及语素判断和语素产生方面;快速命名能力是区分各阶段儿童汉字识别能力的有效指标, 学前儿童的视觉能力与识字量密切相关, 而小学儿童的正字法意识与识字量密切相关。 相似文献
993.
微创神经外科发展的思考 总被引:2,自引:0,他引:2
彭瑞聪 《医学与哲学(人文社会医学版)》2009,30(7):74-76
神经外科的发展历史就是一个不断追求微创的过程。微创神经外科狭义的理解,更多侧重于微创技术手段的应用;而广义的理解,则是指微创理念。微创神经外科取得了很大的成就,但还有许多问题需要解决。在微创神经外科的实践和发展中,不仅应重视微创技术的应用,更要注意应用微创理念。 相似文献
994.
Children and adults commonly produce more generic noun phrases (e.g., birds fly) about animals than artifacts. This may reflect differences in participants’ generic knowledge about specific animals/artifacts (e.g., dogs/chairs), or it may reflect a more general distinction. To test this, the current experiments asked adults and preschoolers to generate properties about novel animals and artifacts (Experiment 1: real animals/artifacts; Experiments 2 and 3: matched pairs of maximally similar, novel animals/artifacts). Data demonstrate that even without prior knowledge about these items, the likelihood of producing a generic is significantly greater for animals than artifacts. These results leave open the question of whether this pattern is the product of experience and learned associations or instead a set of early-developing theories about animals and artifacts. 相似文献
995.
Psychophysical studies have identified two distinct limitations of visual attention capacity: processing speed and apprehension span. Using a simple test, these cognitive factors can be analyzed by Bundesen's Theory of Visual Attention (TVA). The method has strong specificity and sensitivity, and measurements are highly reliable. As the method is theoretically founded, it also has high validity. TVA-based assessment has recently been used to investigate a broad range of neuropsychological and neurological conditions. We present the method, including the experimental paradigm and practical guidelines to patient testing, and review existing TVA-based patient studies organized by lesion anatomy. Lesions in three anatomical regions affect visual capacity: The parietal lobes, frontal cortex and basal ganglia, and extrastriate cortex. Visual capacity thus depends on large, bilaterally distributed anatomical networks that include several regions outside the visual system. The two visual capacity parameters are functionally separable, but seem to rely on largely overlapping brain areas. 相似文献
996.
INGVAR LUNDBERG 《Scandinavian journal of psychology》2009,50(6):611-616
Research on early linguistic precursors and enabling skills of reading acquisition among young children is reviewed. Language development starts early in infancy when the child learns to categorize the speech sounds according to the pattern typical of the mother tongue. Equipped with these sound categories the child is ready to learn to segment words from the sound stream and to understand and to use words. The precise phonological representation of words will facilitate the important development of phonological awareness, a basic prerequisite for reading acquisition. This paper reviews some of my longitudinal research and training studies indicating the causal direction of the relation between phonological awareness and reading and includes some ongoing studies, where gender differences, socio‐economic factors, dose‐response‐effects and motivational factors are explored. Preventive and remedial implications of the findings are pointed out. Finally, the complexity of the causal relationships between different aspects of early language development, including genetic influences and later reading is pointed out. 相似文献
997.
WENCHE ANDERSEN HELLAND EVA BIRINGER TURID HELLAND MIKAEL HEIMANN 《Scandinavian journal of psychology》2009,50(3):287-292
The aim of the present study was to evaluate if the Norwegian adaptation of the Children's Communication Checklist-2 (CCC-2) differentiates between a language impaired and a non-language impaired population and to make a first evaluation of the psychometric qualities of the questionnaire on a Norwegian sample. A total of 153 children aged 6–12 years participated in the study (45 language impaired and 108 non-language impaired). The Norwegian adaptation of the CCC-2 distinguished language impaired from non-language impaired children and thus seems to provide a useful screening tool for communication impairments in Norwegian children. The reliability of the CCC-2 appeared to be reasonable with internal consistency values ranging from 0.73 to 0.89. 相似文献
998.
INGRID WÄNNSTRÖM ULLA PETERSON MARIE ÅSBERG ÅKE NYGREN J. PETTER GUSTAVSSON 《Scandinavian journal of psychology》2009,50(3):231-244
Psychometric properties, particularly predictive validity, of scales in the General Nordic Questionnaire for Psychological and Social Factors at Work (QPSNordic ) were assessed. The analysis is confined to the scales in the QPSNordic, and 24 of the 26 scales are included. A large group of Swedish county council employees ( n = 3,976; response rate = 65%) participated in a study and were given the QPSNordic . Register data for long-term sick leave (>90 days), with diagnosis, were used for predictive analysis. The following main results were obtained: Reliability was generally satisfactory, confirmatory factor analysis indicated good fit, concurrent validity was good, some less often investigated organizational variables predicted sickness absence, and scales were differentially associated with absence due to psychiatric and musculoskeletal disorders. In conclusion, the psychometric testing of the QPSNordic so far suggests that it is a good instrument for assessing health-related factors at work. 相似文献
999.
Ross D. Crosby Stephen A. Wonderlich Scott G. Engel Heather Simonich James E. Mitchell 《Behaviour research and therapy》2009,47(3):181-188
Objective
Negative affect has been purported to play an important role in the etiology and maintenance of bulimic behaviors. The objective of this study was to identify daily mood patterns in the natural environment exhibited by individuals with bulimia nervosa and to examine the relationship between these patterns and bulimic behaviors.Method
One hundred thirty-three women aged 18-55 meeting DSM-IV criteria for bulimia nervosa were recruited through clinical referrals and community advertisements. Ecological momentary assessment was used to collect multiple ratings of negative affect, binge eating and purging each day for a two-week period using palmtop computers. Latent growth mixture modeling was used to identify daily mood patterns.Results
Nine distinct daily mood patterns were identified. The highest rates of binge eating and purging episodes occurred on days characterized by stable high negative affect or increasing negative affect over the course of the day.Conclusions
These findings support the conclusion that negative mood states are intimately tied to bulimic behaviors and may in fact precipitate such behavior. 相似文献1000.