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Seventy-nine 3-year olds and their mothers participated in a laboratory-based task to assess maternal hostility. Mothers also reported their behavioral regulation of their child. Seven years later, functional magnetic resonance imaging data were acquired while viewing emotional faces and completing a reward processing task. Maternal hostility predicted more negative amygdala connectivity during exposure to sad relative to neutral faces with frontal and parietal regions as well as more negative left ventral striatal connectivity during monetary gain relative to loss feedback with the right posterior orbital frontal cortex and right inferior frontal gyrus. In contrast, maternal regulation predicted enhanced cingulo-frontal connectivity during monetary gain relative to loss feedback. Results suggest parenting is associated with alterations in emotion and reward processing circuitry 7–8 years later.  相似文献   
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Savage  Robert  Stuart  Morag 《Reading and writing》2001,14(7-8):571-598
Two experiments investigated the use of orthographic analogies in 6 year olds. In Experiment 1, 26 children were shown CVC clue and target word pairs sharing either rimes (`fork' – `pork'), heads (`fork' – `ford') or were controls (`fork' – `hurl'). A modest advantage for rime-clued over head-cluedtargets was unreliable over by-subject and by-item analyses. Improvements in target word reading were correlated with pretest scaffolding errors (e.g. `pork' misread as `park'). In Experiment 2, 50 children were pretaught three clue words for each target word before being shown words that shared either rimes (`leak' – `peak'), or medial vowel digraphs (`leak') – `bean'), or were controls (`leak' – `herd'). A modest advantage for rime-clued over vowel digraph-clued targets was again unreliable over by-subject and by-item analyses. Neither rime nor phoneme awareness measures were correlated with rime inference use. Vowel, but not rime inference, was correlated with scaffolding errors. Rime detection was the strongest predictor of reading ability, whereas phoneme segmentation was the strongest predictor of the use of scaffolding errors.  相似文献   
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This paper identifies the need for developing new ways to study curiosity in the context of today’s pervasive technologies and unprecedented information access. Curiosity is defined in this paper in a way which incorporates the concomitant constructs of interest and engagement. A theoretical model for curiosity, interest and engagement in new media technology-pervasive learning environments is advanced, taking into consideration personal, situational and contextual factors as influencing variables. While the path associated with curiosity, interest, and engagement during learning and research has remained essentially the same, how individuals tackle research and information-seeking tasks and factors which sustain such efforts have changed. Learning modalities for promoting this theoretical model are discussed leading to a series of recommendations for future research. This article offers a multi-lens perspective on curiosity and suggests a multi-method research agenda for validating such a perspective.  相似文献   
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In a previous simulation study of methods for assessing differential item functioning (DIF) in computer-adaptive tests (Zwick, Thayer, & Wingersky, 1993, 1994), modified versions of the Mantel-Haenszel and standardization methods were found to perform well. In that study, data were generated using the 3-parameter logistic (3PL) model and this same model was assumed in obtaining item parameter estimates. In the current study, the 3PL data were used but the Rasch model was assumed in obtaining the item parameter estimates, which determined the information table used for item selection. Although the obtained DIF statistics were highly correlated with the generating DIF values, they tended to be smaller in magnitude than in the 3PL analysis, resulting in a lower probability of DIF detection. This reduced sensitivity appeared to be related to a degradation in the accuracy of matching. Expected true scores from the Rasch-based computer-adaptive test tended to be biased downward, particularly for lower-ability examinees  相似文献   
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This study tested the effects of an entrepreneurship education intervention, the New Youth Entrepreneur curriculum, on lower socioeconomic black high-school students' knowledge of basic and advanced concepts in entrepreneurship. Ninety-five high school sophomores (over 85% black) from a lower socioeconomic neighborhood made up the sample for the experimental design: 51 in the treatment group and 44 in the control group. The two instruments used measured participants' knowledge of basic entrepreneurship concepts and higher cognitive levels of entrepreneurship learning, including comprehension, application, and analysis. The treatment group experienced the New Youth Entrepreneur (NYE) curriculum for one period a day for a semester, while the control group was exposed to basic entrepreneurship concepts at an awareness level as part of a general business education course. It was predicted and found that the treatment group significantly outperformed the control group on all dimensions of entrepreneurship tested. The study results confirm that appropriate curricular innovation can significantly influence the acquisition of entrepreneurship concepts and skills by lower socioeconomic black students. They also confirm that these same students can even be energized to the point of moving from opportunity recognition to initial business implementation.  相似文献   
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This article explores components of reading accuracy and comprehension in 14 teenagers. The study contrasted the explanatory power of decoding and listening comprehension subskills (the 'simple view of reading'; Gough & Tunmer, 1990), and 'verbal cognitive ability' (a more traditional psychometric model). Research also investigated teenagers' literacy self-percepts. Listening comprehension was the best predictor of reading comprehension, although reading accuracy was an additional predictor. Decoding skills best predicted reading accuracy. Reading self-percepts correlated with decoding but not comprehension skills. Possible uses of 'the simple view of reading' for conceptualisations of literacy problems, interventions and effective professional roles are considered.  相似文献   
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As we increasingly recognize the social nature of technical communication, our responsibilities as teachers need to be redefined. Three levels of responsibility are suggested: at the theoretical level, we should study technical communication as a historically emergent social practice; at the pedagogical level, we need to incorporate social and historical perspectives into technical communication courses and curricula; at the level of social action, we should participate in defining and creating new sites of practice for technical communicators. Several suggestions are offered for helping students locate or develop alternative sites of technical communication practice.  相似文献   
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