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131.
An experimental test was made of Hull's (1943) notions that reactive inhibition is effector-specific and that it has primary negative motivational properties. Four groups of 20 subjects (10 males and 10 females in each) executed two segments of continuous right-hand practice on a mirror-tracking task. The two segments were separated either by 0 min rest, 5 min rest, 5 min continuous right-hand practice on rotary pursuit, or 5 min continuous left-hand practice on rotary pursuit. Effects of interpolated conditions were measured in terms of main-task reminiscence arid initial post-treatment performance. When interpolated practice was conducted with the right hand, reminiscence and post-treatment performance were significantly depressed relative to the rest effect, but not when interpolated practice was conducted with the left hand. Thus, Hull's views were supported, while competing views, such as the task specificity concept of lr and the consolidation theory of reminiscence, were impugned.  相似文献   
132.
在暗适应条件下对11名正常视力的男性受试者测定了进入眼内的闪光能量与恢复时间的关系。当闪光时间为0.1—5毫秒,积分亮度为0.07—1.69熙提秒时,人眼辨别一6’视角的蓝道环缺口所需的恢复时间仅取决于亮度和曝光时间的乘积,即Bloch律成立。文章并对防闪光盲护目镜应具的关闭时间进行了讨论。  相似文献   
133.
中国优秀运动员6项心理技能研究   总被引:5,自引:0,他引:5  
本研究采用标准化《运动心理技能问卷》并结合其它测试数据,对151名中国优秀运动员作了研究,结果表明:1.中国优秀运动员已初步掌握了焦虑控制(AX)、集中注意力(CC)、提高自信心(CF)、提高动机水平(MV)和加强集体意识(TM)的心理技能,他们在自信心和集体意识方面表现非常突出,而在心理准备(MP)方面则表现欠缺;2.除运动动机方面外,中国优秀运动页未表现出心理技能的差异性;3.运动等级(技术水平)不同,运动员的心理技能有差别;4.根据中国优秀运动员心理技能可以把他们分成4种类型,它们是心理技能发展水平较低的心理准备型和自信心型;心理技能发展水平较高的自信心——集体意识型和自信心——集中注意力型。  相似文献   
134.
年轻成年被试在现代人类觉醒期间“标准环境温度”(standard ambient tem-perature)(~20℃)和人体产生和散发热量保持最佳平衡状态的睡眠期间“热中性”(thermal neutrality)环境温度(~30℃)条件下。24-h昼夜测量体(口腔)和皮肤(中背,耳后,肘,手背,足背)温度。皮肤温度借助特制WMSX-01巡回检测温度仅远距离连续测温和自动打印。结果表明;(1)在“标准环境温度”(~20℃)和“热中性”环境温度[~30℃间可见四肢(特别足部)]皮肤温度呈现显著相位性倒转。(2)“非午睡组”和“午睡组”均可见在14:00左右呈现一个体温“钟”的“次要低谷”(Minor nadir),从而表示成年人的体温“钟”也可能具有“半24-h昼夜节律”(Circasemidian rhythm)的内源性特征。  相似文献   
135.
This paper argues for a multidimensional approach to the study of the social support networks of mothers and fathers of young children. Network structure (e. g. size, density, member characteristics), support content (e. g. emotional, informational, economic and child care) and support quality (e. g. helpfulness, satisfaction with support, conflict associated with support and willingness to access support in future need) are distinguished. The goals of the study were: (1) to empirically test the multidimensionality of parental support networks; (2) to assess the relations among these three dimensions for mothers and for fathers; and (3) to examine how couples' support networks are interrelated. Individual at-home interviews were conducted with 100 parents to derive measures of parental support structure, content and quality. Fathers (N = 31) were compared to their spouses (N = 31) and to a comparison group of demographically similar married mothers (N = 38). For all three groups, the same three predicted dimensions emerged in the factor structure of their networks; in general, few gender differences were found. However, relations among structure, content and quality differed by gender, with network structure predicting support content and quality only for mothers. The network structure of couples was positively correlated, and overlap in network members was related to own and spouse's network helpfulness, satisfaction and child care support.  相似文献   
136.
Memory limitations and probabilistic expectations are two key factors that have been posited to play a role in the incremental processing of natural language. Relative clauses (RCs) have long served as a key proving ground for such theories of language processing. Across three self-paced reading experiments, we test the online comprehension of Hungarian subject- and object-extracted RCs (SRCs and ORCs, respectively). We capitalize on the syntactic properties of Hungarian that allow for a variety of word orders within RCs, which helps us to delineate the processing costs associated with memory demand and violated expectations. Results showed a processing cost at the RC verb for structures that have longer verb-argument distances, despite those structures being more frequent in the corpus. These findings thus support theories that attribute processing difficulty to memory limitations, rather than theories that attribute difficulty to less expected structures.  相似文献   
137.
The influence of social class on prosocial behaviour has long been a focus of intense research interest. The present research involved four studies that covered four moral exemplars (villains, victims, heroes, and beneficiaries) to test whether people of different social classes are treated equally in moral judgements. We described moral events experienced by different agents of varying social classes and asked participants to rate the morality of the events and their emotional responses. The results revealed that compared with the low-class condition, high-class individuals had an overall moral disadvantage when they were regarded as villains, victims, and beneficiaries. For the exemplar of hero, the high-class condition was no different from the low-class condition except that high-class heroes evoked less elevation than low-class heroes. The results reveal that people hold a biased moral attitude toward individuals in different social classes.  相似文献   
138.
Poverty impedes children's executive function (EF). Therefore, it is necessary to mitigate the negative effect of poverty by developing efficient interventions to improve poor children's cognitive function. In three studies, we examined whether high-level construals can improve EF among poor children in China. In Study 1, we observed a positive relationship between family socioeconomic status and children's EF, which was moderated by construal level (n = 206; Mage = 9.71; 45.6% girls). In Study 2a, we experimentally induced high- versus low-level construals and found that poor children with high-level construals exhibited better EF than those with low-level construals (n = 65; Mage = 11.32; 47.7% girls). However, the same intervention did not affect the performance of affluent children in Study 2b (n = 63; Mage = 10.54; 54% girls). Moreover, we found that the interventional effects of high-level construals improved the ability of children living in poverty to make healthy decisions and delayed gratification in Study 3 (n = 74; Mage = 11.10; 45.9% girls). These findings may have implications for using high-level construals as an effective intervention to improve poor children's EF and cognitive capacity.  相似文献   
139.
Yaowen Hsu 《Psychometrika》2000,65(4):547-549
The relationship between the EM algorithm and the Bock-Aitkin procedure is described with a continuous distribution of ability (latent trait) from an EM-algorithm perspective. Previous work has been restricted to the discrete case from a probit-analysis perspective. The author is grateful to Bradley A. Hanson for valuable discussion and comments. Thanks also go to Terry A. Ackerman, Meichu Fan, Subrata Kundu, and Robert K. Tsutakawa for their help and encouragement in this study.  相似文献   
140.
在新医学模式指导下预防碘缺乏病   总被引:1,自引:1,他引:0  
碘缺乏病严重危害人类健康,是最大的、可预防的智力损伤因素。通过“社会动员”,推动防治碘缺乏病(IDD)“轮子”运转,使我国消除IDD事业有了巨大进步。目前存在的问题可能会影响到该事业的可持续发展。对此,提出一些建议。  相似文献   
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