This article further tests the theoretical hypotheses supporting the use of number of camera changes (cc) and information introduced (ii) as indicators of resources allocated and resources required to process television messages. These two measures, combined, yield an indicator of available resources and can, therefore, be used as an indicator of television message complexity. Previous research has validated their use, averaged over time, as a global measure of message complexity. The two studies reported here test the underlying local complexity predictions and present support from two studies for the ii, cc combination as a valid indicator of local message complexity. Study 1 demonstrates that when a camera change has an increasing number of ii dimensions available resources become scarcer, eventually reaching cognitive overload. Study 2 examines the relative level of resources required for each of the seven dimensions, and demonstrates that specific theoretical groupings of dimensions (novelty, motivational, and cognitive) show differential impact on available resources. Results show that the individual dimensions increase required resources as predicted and that emotion change is the most cognitively taxing dimension. Together, the two studies increase our understanding of how the number of dimensions each individual dimension of ii increases cognitive load and provide strong support for the measure as an indicator of local message complexity. 相似文献
While there is evidence that knowledge influences understanding of health information, less is known about the processing mechanisms underlying this effect and its impact on memory. We used the moving window paradigm to examine how older adults varying in domain-general crystallised ability (verbal ability) and health knowledge allocate attention to understand health and domain-general texts. Participants (n = 107, age: 60–88 years) read and recalled single sentences about hypertension and about non-health topics. Mixed-effects modelling of word-by-word reading times suggested that domain-general crystallised ability increased conceptual integration regardless of text domain, while health knowledge selectively increased resource allocation to conceptual integration at clause boundaries in health texts. These patterns of attentional allocation were related to subsequent recall performance. Although older adults with lower levels of crystallised ability were less likely to engage in integrative processing, when they did, this strategy had a compensatory effect in improving recall. These findings suggest that semantic integration during reading is an important comprehension process that supports the construction of the memory representation and is engendered by knowledge. Implications of the findings for theories of text processing and memory as well as for designing patient education materials are discussed. 相似文献
The present study aims to understand the mental health status of an understudied group of migrant children – children of migrant workers in China. A total of 1,466 children from Beijing participated in the study that compared migrant children (n = 1,019) to their local peers (n = 447) in public and private school settings. Results showed that overall, migrant children reported more internalizing and externalizing mental health problems and lower life satisfaction than local peers. However, public school attendance served as a protective factor for migrant children's mental health. The mental health status of migrant children attending public schools, including externalizing problems as well as friend and school satisfaction, was not different from local children. In addition, our data indicates that the protective effect of public school attendance for migrant children may be even more salient among girls than boys, and for younger children than older children. 相似文献
Prior studies have revealed that positive parent–child relationships are negatively associated with college students’ depressive symptom. However, the underlying mechanisms of this relation whether specific mediators or moderators are at play are little known. Therefore, the current study examined the potential mediating role of psychological needs satisfaction and the moderating role of mindfulness in the link between parent–child relationships and depressive symptom among college students. A total of 900 college students from Shenzhen, China (53.40% male; Mage?=?19.82, SD?=?1.01, range from 17 to 27 years) completed questionnaires regarding parent–child relationships, psychological needs satisfaction, mindfulness, and depressive symptom. This study found that (1) parent–child relationships are negatively related to college students’ depressive symptom; (2) psychological needs satisfaction could be a potential mediator in the link between parent–child relationships and depressive symptom; and (3) mindfulness could moderate both the relation between parent–child relationships and depressive symptom as well as that between psychological needs satisfaction and depressive symptom, and those relations were weaker among college students with high levels of mindfulness than those with low levels of mindfulness. The current study highlights the mediating and moderating mechanisms that may underlie the correlation between parent–child relationships and depressive symptom, which may contribute to the development of more effective intervention and prevention programs for alleviating college students’ depressive symptom.
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