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141.
We assessed the ability of a combined contingent reinforcement and intensive monitoring procedure to promote and sustain temporary smoking cessation among 34 hired research volunteers, and the ability of a smoking reduction test to predict the subsequent initiation of abstinence. During the 5-day cutdown test, subjects were paid from $0 to $6 per day depending on the extent of reduction from baseline CO levels. During the abstinence test, breath samples were obtained three times daily and subjects were paid $4 for each CO reading ≤11 ppm. Sixty-eight percent of subjects initiated abstinence. Of the breath samples collected during the abstinence test (91% of scheduled samples), 96.5% were ≤11 ppm and 80.5% were ≤8 ppm. Subjects who earned more money during the cutdown test were more likely to abstain (r = ?0.51, p < .001). Contingent reinforcement and intensive monitoring procedures appear to have usefulness for analog studies of smoking reduction and cessation.  相似文献   
142.
3─6岁儿童层级类概念发展的实验研究   总被引:1,自引:0,他引:1  
以3-6岁儿童为被试,以7个常见物体种类的图片为实验材料,按概念水平(基本类概念及上级类概念)以及选择图与目标图的感知相似程度(高、中、低)将实验材料分为四种类型,对3-6岁儿童层级类概念的发展过程进行了研究。结果表明:(1)3岁幼儿已能按基本类概念标准进行正确的种类匹配;对于上级类概念,3-5岁儿童的匹配能力尚较差,6岁基本达到掌握水平。(2)实验材料的感知相似程度对3-5岁儿童的上级类概念匹配操作有显著性影响,6岁儿童才摆脱了这种制约作用。  相似文献   
143.
3─6岁儿童层级类概念发展的实验研究   总被引:4,自引:1,他引:3  
以3-6岁儿童为被试,以7个常见物体种类的图片为实验材料,按概念水平(基本类概念及上级类概念)以及选择图与目标图的感知相似程度(高、中、低)将实验材料分为四种类型,对3-6岁儿童层级类概念的发展过程进行了研究。结果表明:(1)3岁幼儿已能按基本类概念标准进行正确的种类匹配;对于上级类概念,3-5岁儿童的匹配能力尚较差,6岁基本达到掌握水平。(2)实验材料的感知相似程度对3-5岁儿童的上级类概念匹配操作有显著性影响,6岁儿童才摆脱了这种制约作用。  相似文献   
144.
Health-care providers are relying increasingly on printed materials to educate patients and their families about varous aspects of their health or mental health conditions. For the target audience to be able to read and understand health brochures, they should be written at or about the 8th-grade level and incorporate variables that facilitate comprehension. The purpose of this study was to analyze brochures related to Attention-Deficit Hyperactivity Disorder to determine (a) if they were written at a level appropriate for the target audience, and (b) the extent to which they incorporated variables identified in the research literature as facilitating comprehension. The results showed that the brochures were written at a reading level beyond that of the target audience. Further, although the brochures incorporated a large number of variables which facilitate comprehension, many were not used to the extent necessary to ensure that readers would be able to understand the brochures. These results clearly indicated the need for health care materials to be written in such a way that they can be read and understood by the target audience.  相似文献   
145.
One World War II Jewish ghetto that revolted, the Warsaw Ghetto, is compared to one that did not, the Lodz Ghetto, in order to examine the causes of violent resistance. This structured focused comparative method (George, 1979) illuminates problems with previous explanations for revolt and nonrevolt in Jewish ghettos and suggest psychological variables that might have led to or precluded organized violence. Specifically, it appears that these two ghettos differed in their perceptions about their future. The residents of the Warsaw Ghetto believed they had no hope of survival while residents of the Lodz Ghetto remained optimistic. These differing perceptions seem to have led to the different outcomes. Possible causes of these percetpions are also discussed.  相似文献   
146.
The study explored the association between team‐level social capital and individual‐level work engagement. Questionnaire data were collected from six companies in the dairy industry. Seven hundred seventy‐two participants divided into 65 teams were included. In confirmatory factor analyses, we found a superior model fit to a four dimensional model of social capital: bonding social capital, bridging social capital and two types of linking social capital. The results showed a positive association between all subtypes of social capital at the team level and work engagement at the individual level. However, this association only remained significant for linking social capital in relation the workplace as a whole when we adjusted for psychosocial working conditions. The level of intra‐team agreement in social capital score did not moderate the association between social capital and work engagement. In conclusion, the results provide further support for previous findings suggesting a positive association between social capital and work engagement. They add to the existing knowledge by suggesting that linking social capital in relation to the workplace is the most important explanatory variable for work engagement, thus emphasizing the need to distinguish between subtypes of social capital in research and practice.  相似文献   
147.
糖尿病与睡眠的相互关系   总被引:2,自引:0,他引:2  
人一生中有1/3的时间在睡眠中度过,睡眠质量直接关系到一个人的身体健康。睡眠时间过少或过多的人糖尿病患病率大大增加。糖尿病本身的病理、生理特点,严重影响患者的睡眠质量,睡眠质量又可以反过来影响糖尿病患者的血糖水平。有研究显示,糖尿病患者最佳睡眠时间为8小时。同时糖尿病患者中睡眠呼吸暂停综合征(OSAS)患病率高,0SA...  相似文献   
148.
引入数量比较信息,采用移动窗口阅读技术对文本阅读中推理的过程与内容进行研究。实验1探讨当文本阅读中存在数量比较信息时,是否能够进行即时整合,实验2和实验3分别探讨了数量比较信息即时整合的过程与内容。结果发现:当文本阅读中存在数量比较信息时,读者能够进行即时的信息整合,这种整合是自下而上的,支持记忆基础文本加工理论,如果时间足够,这种整合能够达到量化程度。  相似文献   
149.
This experiment investigated the role of context in the expression of conditioned flavour preferences. Rats were trained on a mixture of almond and sucrose and were then given intermixed exposures to almond in one context (Context A) and to sucrose in a second context (Context S). Finally, choice tests were given in both contexts, with one group given almond-versus-water tests and the other almond + sucrose-versus-sucrose tests. Preference for almond over water was greater in Context A than in Context S. Conversely, preference for almond + sucrose over sucrose was greater in Context S than in Context A. These results suggest that the perceived sweetness of a flavour depends on the context in which it is presented and confirm that expression of a flavour preference depends on the type of test employed.  相似文献   
150.
This study examined the effects of deprivation on engagement in activities for 3 adult men with developmental disabilities. First, an assessment was conducted to identify a high- and a low-preference activity for each participant. Second, the high-preference activity was made available following three amounts of deprivation of the activity (15 min, 2 hr, and 1 to 4 days); the low-preference activity was made available following the schedule of deprivation that produced the highest level of engagement by each participant in the high-preference activity. The results were that 1 to 4 days of deprivation produced the highest average amounts of engagement in the high-preference activity for each participant; this amount of deprivation did not produce high engagement in the low-preference activities. Third, the deprivation procedures and results were replicated when high-preference activities were presented by teachers during the participants' daily activities when their engagement had been quite low.  相似文献   
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