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131.
采用给数取物任务和数量比较任务,考察表面相似性与共享标签知识对96名7～16岁智障儿童数量表征的影响。研究结果表明：（1）智障儿童数量表征能力随着年龄增长而提高,11～13岁和14～16岁智障儿童完成数量比较任务的正确率显著高于7～10岁;（2）智障儿童在高表面相似物体下完成数量比较任务的正确率显著高于低表面相似物体下的正确率;（3）擅长使用数字标签的智障儿童,在数量比较任务的表现显著优于不擅长组。 相似文献
132.
基于生态系统理论和动机-意志整合模型,采用问卷法以930名青少年(年龄=15.24±1.66岁)及其父母为研究对象,构建一个有调节的中介模型,从家长与孩子双视角分析孩子体验到的亲子关系和父母教育卷入对青少年抑郁、自伤和自杀意念的影响路径。结果显示：(1)相比低亲子关系-低教育卷入一致的个体,高亲子关系-高教育卷入的青少年有着更低水平的挫败感,且相比于低亲子关系-高教育卷入的青少年,有着高亲子关系-低教育卷入的个体表现出更低水平的挫败感;(2)挫败感在亲子关系-教育卷入与青少年抑郁、自伤和自杀意念之间起部分中介作用;(3)人生意义感调节该中介模型后半段,即挫败感对青少年抑郁、自伤和自杀意念的影响,具体表现为随着人生意义感的增加,挫败感对抑郁、自伤和自杀意念的影响逐渐减小。研究从家庭关系中家长与孩子双视角,揭示了挫败感和人生意义感的中介与调节作用,为青少年抑郁、自伤和自杀意念的发生机制提供更多解释路径。 相似文献
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134.
“Upfixes” are “visual morphemes” originating in comics where an element floats above a character’s head (ex. lightbulbs or gears). We posited that, similar to constructional lexical schemas in language, upfixes use an abstract schema stored in memory, which constrains upfixes to locations above the head and requires them to “agree” with their accompanying facial expressions. We asked participants to rate and interpret both conventional and unconventional upfixes that either matched or mismatched their facial expression (Experiment 1) and/or were placed either above or beside the head (Experiment 2). Interpretations and ratings of conventionality and face–upfix matching (Experiment 1) along with overall comprehensibility (Experiment 2) suggested that both constraints operated on upfix understanding. Because these constraints modulated both conventional and unconventional upfixes, these findings support that an abstract schema stored in long-term memory allows for generalisations beyond memorised individual items. 相似文献
135.
Inês Bramão Alexandra Reis Karl Magnus Petersson Luís Faísca 《Journal of Cognitive Psychology》2016,28(6):641-657
This study investigates the interaction between surface and colour knowledge information during object recognition. In two different experiments, participants were instructed to decide whether two presented stimuli belonged to the same object identity. On the non-matching trials, we manipulated the shape and colour knowledge information activated by the two stimuli by creating four different stimulus pairs: (1) similar in shape and colour (e.g. TOMATO–APPLE); (2) similar in shape and dissimilar in colour (e.g. TOMATO–COCONUT); (3) dissimilar in shape and similar in colour (e.g. TOMATO–CHILI PEPPER) and (4) dissimilar in both shape and colour (e.g. TOMATO–PEANUT). The object pictures were presented in typical and atypical colours and also in black-and-white. The interaction between surface and colour knowledge showed to be contingent upon shape information: while colour knowledge is more important for recognising structurally similar shaped objects, surface colour is more prominent for recognising structurally dissimilar shaped objects. 相似文献
136.
K. Ratliff;L. Oudejans;W. Calfee;A. Abdel-Hady;M. Monge;D. Aslett; 《British journal of psychology (London, England : 1953)》2024,75(4):933-941
The COVID-19 pandemic has raised interest in using devices that generate ultraviolet C (UVC) radiation as an alternative approach for reducing or eliminating microorganisms on surfaces. Studies investigating the efficacy of UVC radiation against pathogens use a wide range of laboratory methods and experimental conditions that can make cross-comparison of results and extrapolation of findings to real-world settings difficult. Here, we use three different UVC-generating sources – a broad-spectrum pulsed xenon light, a continuous light-emitting diode (LED), and a low-pressure mercury vapour lamp – to evaluate the impact of different experimental conditions on UVC efficacy against the coliphage MS2 on surfaces. We find that a nonlinear dose–response relationship exists for all three light sources, meaning that linear extrapolation of doses resulting in a 1-log10 (90%) reduction does not accurately predict the dose required for higher (e.g. 3-log10 or 99.9%) log10 reductions. In addition, our results show that the inoculum characteristics and underlying substrate play an important role in determining UVC efficacy. Variations in microscopic surface topography may shield MS2 from UVC radiation to different degrees, which impacts UVC device efficacy. These findings are important to consider in comparing results from different UVC studies and in estimating device performance in field conditions. 相似文献
137.
The experiment was set-up to investigate the mechanisms of postural control by manipulating the base of support angle, using tilted platform wedges. The primary focus was to analyze the coupling of the motion of the center of mass (CoM) and the center of pressure (CoP), and the motions of the leg joints considered as individual components and synergies. The CoM-CoP coupling (both medio-lateral and anterioposterior) was preserved (∼0°) across all tilted platform angles (35°, 30°, 20°, 10° Down, 0° Flat and 10°, 20°, 25° Up), reflecting an in-phase pattern. There was high coherence (∼1) for CoM-CoP in the lower frequency range, whereas contrarily the hip, knee and ankle pair-wise couplings had values ranging between (0.4 and 0.7) across the different platform angle conditions. These findings are consistent with the view that the local pair-wise coupled variables of Hip, Knee and Ankle motions adaptively self-organized to preserve the CoM-CoP in-phase coupling at equilibrium over the baseline (0° Flat) platform condition and all other tilted platform angles. The findings support the hypothesis of CoM-CoP coupling acting as a collective variable that provides the structural integrity of the system for upright quiet standing across the platform angle conditions. 相似文献
138.
Chris Clegg Prof Susan Walsh 《European Journal of Work and Organizational Psychology》2013,22(2):217-239
We discuss some core issues in the field of change management. We use these topics to identify some mindsets that dominate the practice of change management, and argue that these should be replaced by some alternatives. The alternatives are drawn largely from operations management and sociotechnical thinking. We characterize existing approaches as partial, and speculate that this may be one of the reasons why so many change initiatives are ineffective at meeting their goals. We identify some of the reasons why existing mindsets are sustained. We also point to some ways forward, focusing on changes in the mindsets and language we use. We speculate that these would improve the effectiveness of change initiatives. 相似文献
139.
Sheila N. Matoti 《Journal of Psychology in Africa》2013,23(4):385-387
This case study explored pre-service science students’ approaches to studying and learning. The participants were 65 undergraduate students (females?=?47%; age range 18 to 25 years) at a university of technology in South Africa. Students’ preferences for deep or surface learning were evaluated using the Revised Two-Factor Study Process Questionnaire (Biggs, Kember & Leung, 2001). Data were analysed to contrast learning motive and strategy by year of university placement. The difference in the use of deep as compared to surface motives was higher among students with senior level placement (third years) than their peers with junior placement (second years). Deep motives may be more serviceable with the more rigorous learning expected with senior level education placement. 相似文献
140.
Elena V. Levchenko Alexander V. Evteev Alain R. Yavari Dmitri V. Louzguine-Luzgin Irina V. Belova Graeme E. Murch 《Philosophical Magazine Letters》2013,93(1):50-57
A structural model for surface-enhanced stabilization in some metallic glass formers is proposed. In this model, the alloy surface structure is represented by five-layer Kagomé-net-based lateral ordering. Such surface structure has intrinsic abilities to stabilize icosahedral-like short-range order in the bulk, acting as ‘a cloak of liquidity’. In particular, recent experimental observations of surface-induced lateral ordering and a very high glass forming ability of the liquid alloy Au49Ag5.5Pd2.3Cu26.9Si16.3 can be united using this structural model. This model may be useful for the interpretation of surface structure of other liquid alloys with a high glass forming ability. In addition, it suggests the possibility of guiding the design of the surface coating of solid containers for the stabilization of undercooled liquids. 相似文献