力竭运动后大鼠大脑皮层和下丘脑组织中毛细血管超微结构的定量研究   总被引：1，自引：0，他引：1  

吴燕波  王晓东  张丽玉  吴婵清  陈喜福  杨阳  陈静侬 《体育与科学》2003,24(1):39-40,63

通过力竭运动模型，应用SigmaSan Pro图像分析软件对安静时、运动后即刻、运动后6小时和24小时时大鼠皮层和下丘脑组织中毛细血管的超微结构进行了定量计算。结果发现：力竭运动引起组织内毛细血管管腔发生明显的变化；24小时后其形态基本恢复到运动前水平。此外数据显示力竭运动后皮层和下丘脑组织毛细血管管腔的变化情况不同，我们认为两个脑组织中毛细血管的疲劳和恢复有所不同。  相似文献   

八一女排运动员大脑机能能力及神经类型分布特点初探   总被引：2，自引：1，他引：1  

闫文霞  陈南生 《军事体育进修学院学报》2004,23(1):93-96

通过对八一女排运动员大脑的机能能力和机能特性及神经类型分布特征的分析，发现女排选手的适应性大脑皮质机能活动特征和项目的适宜性神经类型，为排球运动员的科学选材和训练提供了神经类型学的依据。  相似文献   

急性运动对人体细胞免疫功能的影响   总被引：7，自引：0，他引：7  

何伟  黄朝晖 《中国体育科技》2002,38(4):34-36

为探讨运动对细胞免疫功能的影响 ,检测了 7名男子田径运动员 1次急性疲劳性运动前和运动后即刻、3h、2 4 h的外周血 T淋巴细胞转化 (TL T)、白细胞介素 - 2 (IL- 2 )活性和皮质醇及胰岛素浓度的变化。结果 :在运动后即刻 ,TL T显著增强 ,IL- 2活性和血浆皮质醇浓度分别略有上升和下降 ;在运动后 3h,前 2项指标和血浆皮质醇浓度分别明显增强和降低。这 3项指标在运动后 2 4 h均恢复到运动前水平。 IL - 2活性变化与皮质醇浓度变化有显著负相关关系。胰岛素在运动前后无明显变化。提示 :1次急性适度运动可提高人体的细胞免疫功能 ,并可持续数 h。这种变化与血浆皮质醇浓度下降有一定关系  相似文献   

Parents' views of the efficacy of conductive education in Sweden     

Lena Lind 《欧洲特需教育杂志》2013,28(1):42-54

Parents of children who have participated in a conductive education programme in Sweden were asked questions about their reasons for choosing the programme, the expectations they had of it and how they were fulfilled. The results showed that the parents were satisfied with the development of their child, and wanted to continue to take part in further courses with their child. They appreciated the intensive training and found it motivating and enjoyable for the child. They wanted an intensive training for their child because they believed that active training could help the child to develop. The parents learned more about cerebral palsy at the courses and now understood why and how they could train their child. Most of the parents continued the training at home with the child. They experienced financial difficulties in participating in further courses, and found it difficult to stay away from work and family for a long period of time.  相似文献   

Inter-Parietal White Matter Development Predicts Numerical Performance in Young Children     

Cantlon JF  Davis SW  Libertus ME  Kahane J  Brannon EM  Pelphrey KA 《Learning and individual differences》2011,21(6):672-680

In an effort to understand the role of interhemispheric transfer in numerical development, we investigated the relationship between children's developing knowledge of numbers and the integrity of their white matter connections between the cerebral hemispheres (the corpus callosum). We used diffusion tensor imaging (DTI) tractography analyses to test the link between the development of the corpus callosum and performance on symbolic and non-symbolic numerical judgment tasks. We were especially interested in the interhemispheric connections of parietal cortex in 6-year-old children, because regions of parietal cortex have been implicated in the development of numerical skills by several prior studies. Our results revealed significant structural differences between children and adults in the fibers of the corpus callosum connecting the left and right parietal lobes. Importantly, these structural differences were predictive of individual differences among children in performance on numerical judgment tasks: children with poor numerical performance relative to their peers exhibited reduced white matter coherence in the fibers passing through the isthmus of the corpus callosum, which connects the parietal hemispheres.  相似文献   

感情神经科学研究进展     

李艳杰  许远理  刘耐烦 《兰州教育学院学报》2011,27(1):53-55,88

感情神经科学这一学科关注的是情绪和心境的潜在神经基质。近年来,感情神经科学通过使用功能神经成像、行为实验、电生理记录、动物和人类的损害研究及动物和人类的行为实验等方法和技术,以在神经生物学和心理学水平更好地理解情感和情绪。本文首先对感情神经科学的发展历史进行回顾;接着简要概述了几个主要大脑区域对情绪加工的贡献;最后指出了感情神经科学的未来方向。  相似文献   

运动训练对大鼠大脑、心肌脂褐素含量及自由基代谢的影响   总被引：9，自引：0，他引：9  

张钧  郭勇力  黄叔怀 《山东体育学院学报》1998,(4)

观察了８周中等运动强度训练对大鼠力竭运动后和安静时大脑皮层和心肌脂质过氧化水平,超氧化物歧化酶（ＳＯＤ）活性,还原性谷胱甘肽（ＧＳＨ）和脂褐素含量的影响。结果显示：中等运动强度训练,可降低大鼠大脑皮层和心肌力竭运动后和安静时脂质过氧化水平,减少脂褐素的产生,提高超氧化物歧化酶活性,增加安静时两组织还原性谷胱甘肽含量。此结果表明,适量的运动训练具有一定的抗衰老作用。  相似文献   

An m-health application for cerebral stroke detection and monitoring using cloud services     

《International Journal of Information Management》2019

Over 25 million people suffered from cerebral strokes in a span of 23 years. Many systems are being developed to monitor and improve the life of patients that suffer from different diseases. However, solutions for cerebral strokes are hard to find. Moreover, due to their widespread utilization, smartphones have presented themselves as the most appropriate devices for many e-health systems. In this paper, we propose a cerebral stroke detection solution that employs the cloud to store and analyze data in order to provide statistics to public institutions. Moreover, the prototype of the application is presented. The three most important symptoms of cerebral strokes were considered to develop the tasks that are conducted. Thus, the first task detects smiles, the second task employs voice recognition to determine if a sentence is repeated correctly and, the third task determines if the arms can be raised. Several tests were performed in order to verify the application. Results show its ability to determine whether users have the symptoms of cerebral stroke or not.  相似文献   

触发脑梗死危险因素的Logistic回归分析     

史宝林  武艳华  张杰  孙海鹏  王少兰 《河北北方学院学报(医学版)》2006,23(4):25-27

目的：探讨与脑梗死急性发作有关的触发危险因素，为有效防治突发脑梗死提供依据。方法：采用病例对照研究方法对研究对象进行调查，应用非条件Logistic回归模型完成单因素及多因素分析。结果：多因素非条件Logistic逐步回归显示近期感染OR=7．52，TIA的OR=2．11，情绪波动OR=1．59和预防性治疗OR=0．15与脑梗死猝发有关联，其差别有统计学意义（P〈0.05）。结论：近期感染、TIA、情绪波动是触发脑梗死的独立危险因素，而预防性治疗则是保护因素之一。  相似文献   

提取成功与提取努力的神经机制探讨     

孟迎芳 《宁波大学学报(教育科学版)》2008,30(6):48-53

提取成功和提取努力是情节记忆提取过程中所包含的两个重要加工成分。以往研究表明,在提取过程中所一致激活的脑区包括内例颞叶、前额皮层和后顶皮层,其中内侧颞叶与后顶皮层主要负责成功提取,而前额皮层与提取努力的联系更为密切一些。但不同脑区的不同部位可能对提取加工有着不同的贡献,未来研究将进一步细化它们的具体功能。  相似文献