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431.
We assessed the influence of multisensory interactions on the exogenous orienting of spatial attention by comparing the ability
of auditory, tactile, and audiotactile exogenous cues to capture visuospatial attention under conditions of no perceptual
load versus high perceptual load. In Experiment 1, participants discriminated the elevation of visual targets preceded by
either unimodal or bimodal cues under conditions of either a high perceptual load (involving the monitoring of a rapidly presented
central stream of visual letters for occasionally presented target digits) or no perceptual load (when the central stream
was replaced by a fixation point). All of the cues captured spatial attention in the no-load condition, whereas only the bimodal
cues captured visuospatial attention in the highload condition. In Experiment 2, we ruled out the possibility that the presentation
of any changing stimulus at fixation (i.e., a passively monitored stream of letters) would eliminate exogenous orienting,
which instead appears to be a consequence of high perceptual load conditions (Experiment 1). These results demonstrate that
multisensory cues capture spatial attention more effectively than unimodal cues under conditions of concurrent perceptual
load. 相似文献
432.
主要从概念界定、研究方法、解释假说与理论模型以及主要研究结论等方面对供给诱导需求的相关研究进行综述。虽然国外学者对供给诱导需求进行了大量研究,但是在理论和实证研究方面,还没有形成一致意见。尽管如此,借鉴国外的研究方法和结论,针对我国医疗卫生体制中的供给诱导需求问题进行研究将具有重要意义。 相似文献
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George A Bonanno Samuel M Y Ho Jane C K Chan Rosalie S Y Kwong Celia K Y Cheung Claudia P Y Wong Vivian C W Wong 《Health psychology》2008,27(5):659-667
OBJECTIVE: To examine trajectories of psychological functioning using latent class analysis on a sample of hospitalized survivors of the 2003 severe acute respiratory syndrome (SARS) epidemic in Hong Kong. DESIGN: A longitudinal study of 997 survivors, recruited from among 1,331 individuals hospitalized for SARS, were interviewed at 6, 12, and 18 months after hospitalization. MAIN OUTCOME MEASURES: Psychological and physical functioning at each time point was measured using the 12-item Medical Outcome Study Short-Form Health Survey (SF-12). RESULTS: Four latent classes were identified--chronic dysfunction, delayed dysfunction, recovery, and resilience. All groups had better physical health than the chronic group. Resilient and recovered individuals had greater social support and less SARS-related worry, and resilient individuals were more likely to be male. The resilient group also had greater social support than the delayed group and better physical functioning than the recovered group. CONCLUSION: This study demonstrated that longitudinal outcome trajectories following a major health-threat event in an Asian sample bear close resemblance to prototypical trajectories observed in trauma studies using Western samples. Unique predictors of the trajectories included factors observed in previous studies, such as social support, as well as factors of particular relevance to a major disease outbreak, such as SARS-related worry. 相似文献
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D Albarracín R M Ho P S McNatt W R Williams F Rhodes C K Malotte T Hoxworth G A Bolan J Zenilman M Iatesta 《Health psychology》2000,19(5):458-468
To study the structure of beliefs about condom use outcomes, the authors derived and tested 4 psychosocial hypothetical models: (a) a 2-factor model of the personal and social outcomes of condom use; (b) a 2-factor model of the pros and cons of the behavior; (c) a 3-factor model (i.e., physical, self-evaluative, and social) of outcome expectancies; and (d) a thematic 4-factor model of the protection, self-concept, pleasure, and interaction implications of the behavior. All 4 models were studied with a confirmatory factor analysis approach in a multisite study of 4,638 participants, and the thematic solution was consistently the most plausible. Self-concept and pleasure were most strongly associated with attitudes toward using condoms, intentions to use condoms, and actual condom use, whereas protection and interaction generally had little influence. 相似文献
440.
留守儿童心理健康状况影响因素分析及对策思考 总被引:28,自引:0,他引:28
留守儿童是一个需要予以高度重视的群体,其心理健康问题检出率较高,心理健康状况令人堪忧;其心理问题是学校、社会、父母、监护人与留守儿童自身等多种因素交互作用的产物;通过多元互动,即加强社区、学校、父母、监护人与留守儿童的互动,可促进留守儿童心理健康发展。 相似文献