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排序方式: 共有137条查询结果,搜索用时 31 毫秒
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中枢白细胞介素-1在应激升压反应中的作用 总被引:1,自引:0,他引:1
分别在乌拉坦麻醉及清醒的雄性SD大鼠观察到:(1)脑室注射IL-113出现升压效应,(2)条件恐惧应激刺激、足电击及脑室注射IL-1β诱发的升压反应均被脑室注射0.5pg的白细胞介素-1拮抗剂IL-1ra明显衰减;(3)静脉注射0.5μgIL-1ra对足电击引起的升压反应无明显影响。以上结果提示中枢IL-1介导条件恐惧应激刺激、及足电击诱发的升压反应。 相似文献
74.
应激的缓冲器:人格坚韧性 总被引:4,自引:0,他引:4
过去30年来,关注身心保健和组织行为的心理学家都对人格心理学中的一个概念发生了兴趣,就是人格坚韧性(hardiness),大量实证研究证明人格坚韧性可以有效地缓解生活应激给人们带来的身心不适,并有助于提高人们在各领域的工作表现。该文在回顾西方以往研究的基础上,介绍这一概念,以及这方面研究的不足之处,并提出在中国开展此项研究的思路。作为整体人格结构的一部分,人格坚韧性应该从人格“大五”或“大七”结构中探索。在中国已有研究发现,人格“大七”维度对身心健康有不同的影响,哪些维度构成人格坚韧性,这些问题有待进一步的研究 相似文献
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Both humans and non‐human animals exhibit sensitivity to the approximate number of items in a visual array, as indexed by their performance in numerosity discrimination tasks, and even neonates can detect changes in numerosity. These findings are often interpreted as evidence for an innate ‘number sense’. However, recent simulation work has challenged this view by showing that human‐like sensitivity to numerosity can emerge in deep neural networks that build an internal model of the sensory data. This emergentist perspective posits a central role for experience in shaping our number sense and might explain why numerical acuity progressively increases over the course of development. Here we substantiate this hypothesis by introducing a progressive unsupervised deep learning algorithm, which allows us to model the development of numerical acuity through experience. We also investigate how the statistical distribution of numerical and non‐numerical features in natural environments affects the emergence of numerosity representations in the computational model. Our simulations show that deep networks can exhibit numerosity sensitivity prior to any training, as well as a progressive developmental refinement that is modulated by the statistical structure of the learning environment. To validate our simulations, we offer a refinement to the quantitative characterization of the developmental patterns observed in human children. Overall, our findings suggest that it may not be necessary to assume that animals are endowed with a dedicated system for processing numerosity, since domain‐general learning mechanisms can capture key characteristics others have attributed to an evolutionarily specialized number system. 相似文献
76.
《侈靡》是《管子》中一篇重要文章,以难懂著称。本文从《管子》全书出发,探讨《侈靡》真意,并对全篇作一综合性研究。 相似文献
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为了考察中学生师生关系现状,并探讨中学生的情绪智力、社会问题解决技能与师生关系之间的内在联系,本研究采用《中学生情绪智力量表》、《中学生社会问题解决技能量表》和《中学生师生关系量表》对2172名中学生进行调查。结果发现:(1)中学生的师生关系的总体状况良好,且存在显著的年级和性别差异:初一、高一年级的师生关系好于初二、高二年级。在亲密性和支持性方面,不存在显著的性别差异,在冲突性方面,男生显著高于女生,在满意感方面,女生显著高于男生。(2)情绪智力的不同维度对中学生师生关系的预测作用各不一样。情绪感知对师生关系的亲密性具有显著的负向预测作用,对师生关系的冲突性具有显著的正向预测作用。情绪运用、理解和管理都能够显著预测师生关系,其中情绪运用对师生关系的亲密性、支持性和满意度的预测作用最为突出,情绪管理对师生冲突的负向预测作用最强。(3)社会问题解决技能在中学生情绪智力与师生关系之间起部分中介作用。 相似文献
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Mimi Xu Lilian Zou Alex Wilde Bettina Meiser Kristine Barlow-Stewart Bibiana Chan Philip B. Mitchell Mariana S. Sousa Peter R. Schofield 《Journal of genetic counseling》2013,22(5):613-624
The aim of this study was to explore cultural differences in causal attributions and beliefs about heritability of major depressive disorder (MDD). Face-to-face interviews with Anglo-Celtic- and Chinese-Australians community members with a family history of MDD were conducted and subjected to a rigorous qualitative analysis, using the computer software NVivo. Sixteen Anglo-Celtic-Australians and 16 Chinese-Australians were interviewed. Both groups believed that a combination of genetic and environmental factors contributed to MDD, that stress was an important cause of MDD, and that coping factors were significant moderators of the impact of stress on MDD. Both cultural groups believed that the causes of MDD affecting multiple family members included a shared family environment and a “contagion effect”, in addition to genetics. Unique to the Chinese-Australian group was the beliefs that parental pressures to exceed academically contributed to MDD; this cultural group also reported beliefs that depression was due to God’s will or alternatively fate, which in turn was related to attributions to feng shui and auspicious dates. This study documented key culture-specific differences in beliefs about causes and inheritance of MDD; such differences have major implications for clinician-patient communication about genetic risk associated with having a family history of MDD. 相似文献
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Motivational cues: The role of perceived senders' self‐control ability in raters' deception judgements
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Song Wu Hong Zou Wei Cai Xue Wang Shenghua Jin 《International journal of psychology》2014,49(2):123-130
Previous studies have found that senders' personal traits may be used by others to make judgements about the senders' truthfulness. Two studies were conducted to examine whether perceived self‐control ability has an effect on deception judgement. Perceived self‐control was hypothesized to act as a motivational cue that participants would use to assess the sender's motivation to lie, which in turn would influence their deception judgement. Results revealed that when participants assessed the sender as having higher self‐control ability, they would consider the sender to be less motivated to lie in daily life (Study 1), and judge the sender more truthful in a text‐based deception judgement task (Study 2). However, the effect of perceived self‐control ability disappeared in a video‐based task (Study 2), likely due to the multitude of various cues available in audio‐visual stimuli. The theoretical and applied implications of the results are discussed. 相似文献