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脑卒中会破坏运动皮质区域发送给脊髓的下行指令,从而导致手臂和手部的永久性运动缺陷。然而,由于脑卒中属于上运动神经元损伤,故位于损伤下方,控制运动的颈椎脊髓回路仍保持完整,并可能通过神经外科技术恢复运动能力。近期,来自匹兹堡大学和卡内基梅隆大学等机构的研究人员发现,一种称为硬膜外电刺激的神经外科技术,可以增强卒中后偏瘫患者的手臂和手部活动能力,这是该技术首次被应用到卒中患者体内。研究成果发表在《Na...
人类脑图谱是理解脑结构和功能的基石,用于处理分析从不同个体收集的大脑特征。美国北卡罗来纳大学研究团队绘制人脑婴儿阶段的多面图谱。该研究成果于近日发表在《Nature Methods》,题为:Multifaceted atlases of the human brain in its infancy。
2019年10月7日,来自耶鲁大学干细胞中心In-Hyun Park研究组在Nature Methods杂志发表了题为“Engineering of human brain organoids with a functional vascular-like system”的文章,在其前期研究的基础上,利用人类胚胎干细胞建立了具有功能性血管状系统的类脑器官(vhCOs),为研究人类大脑发育与疾病提供...
英国《自然》杂志近日在线发表的一篇神经科学论文称,德国科学家最新实验表明,身体的免疫应答通过免疫记忆,影响了生命后期脑疾病的严重性。这一发现或预示着科学家将由此找到一种可以缓解神经疾病的新方法。
美国莱斯大学的研究人员开发出一种新型装置,可利用快速流动的液体将柔韧的导电碳纳米管纤维插入大脑,以帮助记录神经元活动,这种基于微流体的技术有望改善通过电极感知神经元信号的治疗方法,为癫痫病及其他疾病患者带来福音。研究人员认为,基于纳米管的电极最终将帮助科学家发现认知过程背后的机制,并与大脑建立直接互动界面,使得患者能够看到、听到以及控制假肢。
Until recently, the composition of brain tissue limited researchers' insights into the brain's neural circuitry and function.NSF-funded scientists developed a technique called CLARITY to chemically di...
Scientists have known that areas of the brain with similar functions—even those in different brain hemispheres—connect to share signals when the body rests, but they haven’t known how this “resting-st...
The National Science Foundation (NSF) made 19 awards to cross-disciplinary teams from across the United States to conduct innovative research focused on neural and cognitive systems. Each award provid...
The urge to satisfy hunger is a primal one, but – as any dieter knows – choices about when and what to eat can be influenced by cues in the environment, not just how long it’s been since breakfast. Th...
Researchers have developed a new device to map the brain during surgery and distinguish between healthy and diseased tissues. The device provides higher resolution neural readings than existing tools ...
Chronic pain in any one body part may distort the intensity with which a key brain region perceives pain everywhere else.This is the finding of a study in rats, which was led by researchers at NYU Lan...
Which came first, overall bigger brains or larger brain regions that control specialized behaviors? Neuroscientists have debated this question for decades, but a new Cornell study settles the score.Th...
The synchronization of brainwaves among students during class reflects how much they like the class and each other, a team of neuroscientists has found.“How well our brainwaves sync up with those of a...
近日,一项新研究发现,抗凝栓药的使用或能改变硬脑膜下血肿的发生率。这些抗凝栓药物包括低剂量阿司匹林、维生素K拮抗剂(如华法林)、氯吡格雷及口服抗凝药等。相关论文刊登于《美国医学会杂志》。丹麦大学的David Gaist及同事分析了10010位硬脑膜下血肿患者以及40多万名对照组人员的数据。实验组参与者的年龄为20至89岁,他们在2000年至2015年第一次出现硬膜下血肿,其中有47%的人在服用抗凝...
At a glance, you can recognize a friend's face whether they are happy or sad or even if you haven't seen them in a decade. How does the brain do this — recognize familiar faces with efficiency and eas...

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