脑科学与外语学习策略   总被引：1，自引：0，他引：1  

代玉华  段宇晖 《黄河科技大学学报》2006,8(2):118-120

教育工作应重视运用脑科学的知识来探索学习方法,尤其是第二语言的学习。将神经语言学最新成果运用于外语教育,是提高我们外语学习效率的有效途径。  相似文献   

Asynchrony of visual-orthographic and auditory-phonological word recognition processes: An underlying factor in dyslexia     

Zvia Breznitz 《Reading and writing》2002,15(1-2):15-42

This study investigated whether asynchrony ofspeed of processing (SOP) betweenvisual-orthographic and auditory-phonologicalmodalities can account for word recognitiondeficits among dyslexic readers. SOP amongelementary school dyslexic readers was comparedto that of chronologically age-matched normalreaders. SOP was assessed using nonlinguisticand linguistic auditory and visual low-leveltasks and higher-level orthographic andphonological tasks. Behavioral andelectrophysiological (ERP) measures of SOP wereobtained. Data indicated that dyslexic readerswere significantly slower than control readersin most of the experimental tasks. Moreover,dyslexics revealed a systematic SOP gap betweenthe auditory-phonological and thevisual-orthographic modalities. This gap wasfound in both P200 and P300 latencies, andexplained most of the variance in wordrecognition. A theory is proposed suggestingthat asynchrony between the processing rates ofthe visual and the auditory modalities may bean underlying cause of dyslexia.  相似文献   

Oxidative stress is the primary event: Effects of ethanol consumption in brain     

Subir Kumar Das  Hiran K. R.  Sukhes Mukherjee  D. M. Vasudevan 《Indian journal of clinical biochemistry : IJCB》2007,22(1):99-104

Damaging effects of reactive oxygen species on living systems are well documented. They include oxidative attack on vital cell constituents. Chronic ethanol administration is able to induce an oxidative stress in the central nervous system. In the present study, 16–18 week-old male albino rats of Wistar strain were exposed to different concentration of ethanol for 4 weeks. This exposure showed profound effect on body weight. Ascorbic acid level; and activities of alkaline phosphatase and aspartate transaminase in the brain are dependent on the concentration of ethanol exposure. Chronic ethanol ingestion elicits statistically significant increase in thiobarbituric acid reactive substances level and decrease in gluatathione level in the brain. It reduces superoxide dismutase, catalase, glutathione peroxidase, and glutathione reductase activities in a dose dependent manner. However, histological examination could not reveal any pathophysiological changes. Therefore, we conclude that biochemical alterations and oxidative stress related parameters respond early in alcoholism than the histopathological changes in brain.  相似文献   

Evaluation of microsatellite instability in tumors of central nervous system: A pilot study     

Minal Vaish  Raj Kumar  R. D. Mittal  Balraj Mittal 《Indian journal of clinical biochemistry : IJCB》2004,19(2):156-162

Microsatellite instability (MSI) characterized by alterations at simple repetitive genomic sequences is a distinct mechanism in tumorogenesis. Central nervous system (CNS) tumors have been reported to exhibit MSI, indicator of defective mismatch repair system with controversies. The present study was undertaken to examine sixteen primary brain and two spinal tumors for MSI at six mono: BAT-26, BAT-40, BAX, TGFßRII, IGFIIR and hMSH3 and four dinucleotide loci: D2S123, D9S1851, D9S283 and D18S58. Polymerase chain reaction (PCR) was done to amplify tumour and blood DNA, analyzed on 8% denaturing Polyacrylamide gel followed by autoradiography. Out of 18 CNS tumors examined, 39% exhibited MSI at BAT-26, BAT-40, D9S1851, D9S283 and D18S58 in tumoral DNA. However, no alteration was observed at BAX, TGFßRII, IGFIIR, hMSH3 and D2S123 loci. Low incidence of MS1-high hypothesizes role of MSI in evolution of CNS tumors but not in cancer initiation or progression.  相似文献   

依达拉奉治疗脑震荡临床疗效分析     

漆平芳  贺建雄  袁宜荣 《宜春学院学报》2012,34(8):96-97

目的:探讨依达拉奉结合其他常规西医治疗脑震荡临床疗效。方法:对98例脑震荡患者随机分为3组,常规西医治疗组,依达拉奉结合常规西医治疗组,纯中医治疗组。结果:通过临床观察、总结,依达拉奉结合常规西医治疗组临床疗效明显优于对照组,差异有统计学意义(P<0.05)。结论:依达拉奉结合常规西医治疗脑震荡疗程短,疗效佳,不良反应少,值得临床推广。  相似文献   

人工智能支持的课堂教学行为分析:困境与路径     

赵丽  贺玮  王洋 《电化教育研究》2022,43(1):86-92

传统课堂教学行为分析多以人脑分析为主,存在依赖专家、分析效率低、分析不准确等问题。信息化课堂中教学行为分析多通过单一言语行为来考量,手势、眼部表情、身体动作等其他课堂行为难以体现。人工智能技术突破了传统和信息化课堂教学行为分析的局限,实现了分析的自动化和智能化,使得课堂教学行为分析更加精准、全面、真实。研究从舆论造势、技术担忧和安全伦理三方面分析了人工智能技术支持下的课堂教学行为分析的发展困境。研究通过对人工智能技术支持的课堂教学行为分析发展、困境和路径的分析,认为,“人工与人脑的统一”为课堂教学行为分析带来创新突破,将成为人工智能技术支持下的课堂教学行为分析与发展的新路径。  相似文献   

物象·兴象·兴会——中国古代文艺心理学探析     

张子程 《内蒙古师范大学学报(哲学社会科学版)》2014,43(6):21-24

物象由神意的传达到人性光辉的吐露,然后被纯化为人类情感符号。物象是由外在客观事物之像为人所感,进入大脑后被人内在主观情感所浸染,成为一种携带高浓度情感因子的主观物象,这种具有主观情感特性的物象就是兴象。兴象介于物象和意象之间。当这些携带情感因子的兴象聚积于大脑便是兴会。兴会在偶发因素的刺激下实现瞬间的贯通就是会通。人在会通阶段可超越有限生命的束缚,获得极大的审美享受。  相似文献   

Science Letters:Brain metastases of melanoma-mechanisms of attack on their defence system by engineered stem cells in the microenvironment     

DIMITROV Borislav D.  ATANASSOVA Penka A.  RACHKOVA Mariana I. 《Journal of Zhejiang University. Science. B》2007,(9)

This report gives a better emphasis on the role of targeted effectors (e.g. a combination of 5-FC with CD-NSPCs as compared to the application of NSPCs alone) and how such delivery of pro-drug activating enzymes and other tumor-killing substances may overcome melanocytic defence system, interact with and promote the host defence and immune response modulations not only in melanoma but, potentially, in other highly-metastatic cancers.  相似文献   

An exploratory study of Special Educational Needs Co‐ordinators' knowledge and experience of working with children who have sustained a brain injury          下载免费PDF全文

Julia Howe  Heather Ball 《Support for Learning》2017,32(1):85-100

This research aimed to measure Special Educational Needs Co‐ordinators' knowledge of the educational implications of acquired brain injury in children and young people and whether experience of working with pupils with a brain injury or additional training impacts upon this knowledge. Data was collected within one local authority in England using an online survey. The results indicated that the respondents had high levels of uncertainty regarding the impact of a brain injury although they were more confident in those areas which related most closely to their practice. The responses suggested that experience of working with a pupil with a brain injury promoted greater knowledge than receiving training; the results, however, showed that only a minority of SENCos had received any training and those who had tended to have undertaken this independently. This suggests that there is a need for SENCos to be provided with specialist training in order to increase their understanding of the impact of acquired brain injury in children and young people.  相似文献   

高等教育国际化进程中国际学生流向不均衡现象   总被引：7，自引：0，他引：7  

李联明  陈云棠 《比较教育研究》2004,25(2):51-54

高等教育国际化包括许多方面,如在课程中引入国际观念、师生人员的国际交流、学历证书的认可、比较和转换教育信息、技术与设施的跨国交流等内容,其中的学生流动无疑是一个不可或缺的组成部分.本文从流入与流出、所选学科、学生层次、收费政策等四个方面论述了国际学生流动过程中的不均衡现象,呼吁要认真对待人才外流这一严重问题.  相似文献