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屈光参差性弱视Brodmann17、18、19区的功能磁共振研究 被引量:4
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作者 李传明 王健 +4 位作者 余琼武 汪辉 周杨 谢兵 邱明国 《第三军医大学学报》 CAS CSCD 北大核心 2006年第9期987-989,共3页
目的利用血氧水平依赖性功能性磁共振成像(b lood oxygen level dependent-functionalm agnetic resonance im-aging,bold-fMR I)技术,探索屈光参差性弱视对不同级别大脑视觉皮层功能的影响。方法以1.5 T磁共振成像系统采集10例屈光参... 目的利用血氧水平依赖性功能性磁共振成像(b lood oxygen level dependent-functionalm agnetic resonance im-aging,bold-fMR I)技术,探索屈光参差性弱视对不同级别大脑视觉皮层功能的影响。方法以1.5 T磁共振成像系统采集10例屈光参差性弱视及8例正常志愿者枕叶视皮层兴趣区BOLD-fMR I数据,比较屈光参差性弱视组弱视眼与对侧眼,及弱视眼屈光矫正前后皮层神经元活动范围的不同,并与正常组对比,分析其改变特点及机制。结果弱视眼皮层神经元的活动范围在B rodm ann17、18、19区均明显小于对侧眼。弱视眼矫正屈光不正后皮层活动水平明显增高,激活范围明显增大。结论屈光参差性弱视矫正屈光不正可部分提高弱视眼所属视觉皮层的活动能力,但其应高级别纹周皮层、纹旁皮层及低级别纹状皮层仍存在明显的功能损害。 展开更多
关键词 屈光参差性弱视 brodmann17 18 19区 皮层损害 功能磁共振
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基于激活似然估计meta分析的神经性厌食症大脑功能活动差异性研究
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作者 王彦博 卜玉莲 +5 位作者 沈天笑 张伊冰 占世坤 孙伯民 张璟 胡柯嘉 《中国神经精神疾病杂志》 北大核心 2025年第6期363-369,共7页
目的通过激活似然估计(activation likelihood estimation,ALE)meta分析探寻神经性厌食症(anorexia nervosa,AN)患者与健康对照(healthy controls,HC)神经活动差异性,及其与AN患者临床症状的关联性。方法检索2000年至2025年3月发表的关... 目的通过激活似然估计(activation likelihood estimation,ALE)meta分析探寻神经性厌食症(anorexia nervosa,AN)患者与健康对照(healthy controls,HC)神经活动差异性,及其与AN患者临床症状的关联性。方法检索2000年至2025年3月发表的关于AN神经活动影像学研究的meta分析文献,从识别出的588篇文献中筛选并纳入4篇专注于AN组与HC组神经活动差异的meta分析,共包含212名受试者和21组坐标。采用ALE meta分析方法,通过GingerALE软件对报告的脑区改变及其峰值坐标进行系统性分析,以探究AN组与HC组在大脑功能活动方面的差异。结果与HC组相比,AN组患者在左海马旁回/杏仁核(ALE值=0.39×10^(-2))、右海马旁回/杏仁核(ALE值=0.39×10^(-2))和枕下回(ALE值=0.39×10^(-2))的激活增强(P<0.01,FWE校正),而在布罗德曼17区(ALE值=0.61×10^(-2))的激活减弱(P<0.01,FWE校正)。结论AN患者的关键脑区(如海马旁回、枕下回和杏仁核)表现出显著的功能激活异常。 展开更多
关键词 神经性厌食症 激活似然估计 META分析 海马旁回 杏仁核 布罗德曼17区 视觉信息处理 情绪调节 记忆形成
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Brain activation and inhibition after acupuncture at Taichong and Taixi: resting-state functional magnetic resonance imaging 被引量:10
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作者 Shao-qun Zhang Yan-jie Wang +7 位作者 Ji-ping Zhang Jun-qi Chen Chun-xiao Wu Zhi-peng Li Jia-rong Chen Huai-liang Ouyang Yong Huang Chun-zhi Tang 《Neural Regeneration Research》 SCIE CAS CSCD 2015年第2期292-297,共6页
Acupuncture can induce changes in the brain. However, the majority of studies to date have focused on a single acupoint at a time. In the present study, we observed activity changes in the brains of healthy volunteers... Acupuncture can induce changes in the brain. However, the majority of studies to date have focused on a single acupoint at a time. In the present study, we observed activity changes in the brains of healthy volunteers before and after acupuncture atTaichong (LR3) andTaixi (KI3) using resting-state functional magnetic resonance imaging. Fifteen healthy volunteers underwent resting-state functional magnetic resonance imaging of the brain 15 minutes before acupuncture, then received acupuncture atTaichong andTaixi using the nail-pressing needle insertion method, after which the needle was retained in place for 30 minutes. Fifteen minutes after withdrawal of the needle, the volunteers underwent a further session of resting-state functional magnetic res-onance imaging, which revealed that the amplitude of low-frequency lfuctuation, a measure of spontaneous neuronal activity, increased mainly in the cerebral occipital lobe and middle occipital gyrus (Brodmann area 18/19), inferior occipital gyrus (Brodmann area 18) and cuneus (Brodmann area 18), but decreased mainly in the gyrus rectus of the frontal lobe (Brodmann area 11), inferi-or frontal gyrus (Brodmann area 44) and the center of the posterior lobe of the cerebellum. The present ifndings indicate that acupuncture atTaichong andTaixi speciifcally promote blood lfow and activation in the brain areas related to vision, emotion and cognition, and inhibit brain areas related to emotion, attention, phonological and semantic processing, and memory. 展开更多
关键词 nerve regeneration ACUPUNCTURE neuroimaging resting-state functional magneticresonance imaging Taichong (LR3) Taixi (KI3) amplitude of low-frequency fluctuation brodmannarea 11 brodmann area l brodmann area 19 brodmann area 44 posterior lobe of the cerebellum neural regeneration
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感觉语言区(Wernicke区)定位的探讨 被引量:2
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作者 邹叶青 钱春野 +1 位作者 甘瑞华 柳丰萍 《广州医学院学报》 2008年第4期65-66,共2页
关于语言功能定位的认识,始于1861年法国神经病理学家Broca对失语症患者的研究。他发现了大脑中运动语言中枢的Broca区,而且,认为该区的损伤会导致言语能力丧失性失语症。1874年,德国医生Wernicke又作了进一步研究,发现语言理解中... 关于语言功能定位的认识,始于1861年法国神经病理学家Broca对失语症患者的研究。他发现了大脑中运动语言中枢的Broca区,而且,认为该区的损伤会导致言语能力丧失性失语症。1874年,德国医生Wernicke又作了进一步研究,发现语言理解中枢的Wernicke区,并提出了语言包含分离的运动程序和感知程序,这些程序分别由不同的脑区控制。 展开更多
关键词 wernicke区 BROCA区 brodmann分区法 语言理解中枢 运动语言中枢 语言功能定位 言语能力 袁失性失语症
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PET脑视功能区自动提取的研究 被引量:8
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作者 张剑戈 王成 +4 位作者 潘家普 郭万华 李培勇 江旭峰 朱承谟 《上海第二医科大学学报》 CSCD 2003年第1期24-27,共4页
目的建立自动提取脑部功能区的方法。 方法通过非线性的空间变换将PET图像经过图像配准和图像形变两个步骤,归一化到Talairach坐标系,根据图谱中脑功能区的坐标,在3D图像中提取相应的功能区;为验证功能区提取的有效性,对志愿者带眼罩和... 目的建立自动提取脑部功能区的方法。 方法通过非线性的空间变换将PET图像经过图像配准和图像形变两个步骤,归一化到Talairach坐标系,根据图谱中脑功能区的坐标,在3D图像中提取相应的功能区;为验证功能区提取的有效性,对志愿者带眼罩和不带眼罩各14例,加光刺激,提取视区并染色,计算经小脑归一化后的平均密度值。 结果两组视区平均密度值显著性差异(P<0.001);视区位置符合解剖学定义。 结论自动提取功能区的方法是有效的。 展开更多
关键词 视区 配准 空间归一化 PET 断层显像技术
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Acupuncture for ischemic stroke:cerebellar activation may be a central mechanism following Deqi 被引量:29
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作者 Miao-keng Li Yu-jie Li +6 位作者 Gui-feng Zhang Jun-qi Chen Ji-ping Zhang Ji Qi Yong Huang Xin-sheng Lai Chun-zhi Tang 《Neural Regeneration Research》 SCIE CAS CSCD 2015年第12期1997-2003,共7页
The needling sensation of Deqi during acupuncture is a key factor of influencing acupuncture outcome.Recent studies have mainly focused on the brain function effects of Deqi in a physiological state.Functional magneti... The needling sensation of Deqi during acupuncture is a key factor of influencing acupuncture outcome.Recent studies have mainly focused on the brain function effects of Deqi in a physiological state.Functional magnetic resonance imaging(f MRI)on the effects of acupuncture at Waiguan(SJ5)in pathological and physiological states is controversial.In this study,12 patients with ischemic stroke received acupuncture at Waiguan(SJ5)and simultaneously underwent f MRI scanning of the brain,with imaging data of the activated areas obtained.Based on the patient's sensation,imaging data were allocated to either the Deqi group or non-Deqi group.In the Deqi group,the activated/deactivated areas were the left superior temporal gyrus(BA39)/right anterior lobe of the cerebellum and left thalamus.In the non-Deqi group,the activated areas included the medial frontal gyrus of the right frontal lobe(BA11),right limbic lobe(BA30,35),and left frontal lobe(BA47),while the only deactivated area was the right parietal lobe(BA40).Compared with the non-Deqi group,the Deqi group exhibited marked activation of the right anterior lobe of the cerebellum and right limbic lobe(BA30).These findings confirm that the clinical effect of Deqi during acupuncture is based on brain functional changes.Cerebellar activation may be one of the central mechanisms of acupuncture in the treatment of ischemic stroke. 展开更多
关键词 nerve regeneration traditional Chinese medicine ACUPUNCTURE functional magneticresonance imaging ischemic stroke brodmann area Waiguan (SJ5) acupoint DEQI non-Deqi 973Program neural regeneration
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Acupuncture at Waiguan(SJ5) and sham points influences activation of functional brain areas of ischemic stroke patients: a functional magnetic resonance imaging study 被引量:22
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作者 Ji Qi Junqi Chen +5 位作者 Yong Huang Xinsheng Lai Chunzhi Tang Junjun Yang Hua Chen Shanshan Qu 《Neural Regeneration Research》 SCIE CAS CSCD 2014年第3期293-300,共8页
Most studies addressing the specificity of meridians and acupuncture points have focused mainly on the different neural effects of acupuncture at different points in healthy individuals. This study examined the effect... Most studies addressing the specificity of meridians and acupuncture points have focused mainly on the different neural effects of acupuncture at different points in healthy individuals. This study examined the effects of acupuncture on brain function in a pathological context. Sixteen patients with ischemic stroke were randomly assigned to true point group (true acupuncture at right Waiguan (SJ5)) and sham point group (sham acupuncture). Results of functional magnetic resonance imaging revealed activation in right parietal lobe (Brodmann areas 7 and 19), the right temporal lobe (Brodmann area 39), the right limbic lobe (Brodmann area 23) and bilateral oc-cipital lobes (Brodmann area 18). Furthermore, inhibition of bilateral frontal lobes (Brodmann area 4, 6, and 45), right parietal lobe (Brodmann areas 1 and 5) and left temporal lobe (Brodmann area 21 ) were observed in the true point group. Activation in the precuneus of right parietal lobe (Brodmann area 7) and inhibition of the left superior frontal gyrus (Brodmann area 10) was observed in the sham group. Compared with sham acupuncture, acupuncture at Waiguan in stroke patients inhibited Brodmann area 5 on the healthy side. Results indicated that the altered specificity of sensation-associated cortex (Brodmann area 5) is possibly associated with a central mechanism of acupuncture at Waiguan for stroke patients. 展开更多
关键词 nerve regeneration ACUPUNCTURE Waiguan (SJS) brain injury ischemic stroke function-al magnetic resonance imaging brodmann area sham point 973 Program neural regeneration
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视觉正常人简单图形视觉刺激的视皮层功能定位及定量研究
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作者 王浩 郭冰冰 +2 位作者 陈丽峰 侯文生 阴正勤 《眼科新进展》 CAS 北大核心 2010年第1期1-4,共4页
目的利用功能磁共振成像的方法定位、定量研究视觉正常人简单图形视觉刺激时的视皮层反应模式,为视皮层假体的刺激位置和强度提供参考。方法对3名视觉正常成年志愿者进行圆环形棋盘格视觉任务的功能磁共振成像实验,同一任务对每位志愿... 目的利用功能磁共振成像的方法定位、定量研究视觉正常人简单图形视觉刺激时的视皮层反应模式,为视皮层假体的刺激位置和强度提供参考。方法对3名视觉正常成年志愿者进行圆环形棋盘格视觉任务的功能磁共振成像实验,同一任务对每位志愿者重复3次,以SPM2脑功能专业分析软件包作后期处理,显示视皮层反应模式。结果3名受试者均较好完成视觉任务,平均体素反应总数为5217.3±1110.6。反应最强点坐标x值为(-4.3±8.7)mm,y值为(-83.3±3.7)mm,z值为(-4.0±4.7)mm。平均最大反应强度为15.99±1.58,最大反应脑区为双侧的Brodmann 18区即初级视皮层V2区,解剖上的舌回附近。结论利用功能磁共振成像的方法可以定位、定量的研究视皮层反应模式,这些反应模式信息可以为视皮层假体的刺激位置、强度等参数提供参考。 展开更多
关键词 功能磁共振成像 简单图形 brodmann 18区 视皮层
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脑深部电刺激治疗难治性抑郁症的靶点研究进展 被引量:4
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作者 徐佳婷 张陈诚 汤义平 《中国神经精神疾病杂志》 CAS CSCD 北大核心 2022年第5期310-314,共5页
近年来诸多研究表明深部脑电刺激(deep brain stimulation,DBS)对难治性抑郁症具有一定疗效,但个体最佳刺激靶点选择尚缺乏一致标准。临床研究已证实和尝试的DBS靶点中,胼胝体扣带回、腹侧内囊/腹侧纹状体、伏隔核研究相对成熟,其抗抑... 近年来诸多研究表明深部脑电刺激(deep brain stimulation,DBS)对难治性抑郁症具有一定疗效,但个体最佳刺激靶点选择尚缺乏一致标准。临床研究已证实和尝试的DBS靶点中,胼胝体扣带回、腹侧内囊/腹侧纹状体、伏隔核研究相对成熟,其抗抑郁效果较明确且相对安全,内侧前脑束靶点具有一定潜力,丘脑下脚、外侧缰核和终纹床核等靶点多为小样本病例报告,缺乏重复性研究支持。因难治性抑郁症异质性大,且DBS为有创治疗,目前研究存在一定挑战。而结合临床特点和生物学标识的个体化、精准化刺激靶点是未来值得研究的方向。 展开更多
关键词 脑深部电刺激 难治性抑郁症 重性抑郁障碍 治疗 靶点 胼胝体扣带回 腹侧内囊/腹侧纹 状体 伏隔核
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基于事件前瞻记忆脑神经机制的功能磁共振成像研究 被引量:5
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作者 朱殿明 汤伟军 +2 位作者 杨治良 徐一峰 刘登堂 《中华行为医学与脑科学杂志》 CAS CSCD 北大核心 2012年第10期924-926,共3页
目的应用功能磁共振成像(fMRI)技术探讨前瞻记忆(PM)的脑区激活及神经机制。方法共有15名健康志愿者人组,以基于事件前瞻记忆(双任务范式,包括进行中任务和前瞻记忆任务)作为刺激任务,应用GRE—EPI序列采集血氧水平依赖性(BOL... 目的应用功能磁共振成像(fMRI)技术探讨前瞻记忆(PM)的脑区激活及神经机制。方法共有15名健康志愿者人组,以基于事件前瞻记忆(双任务范式,包括进行中任务和前瞻记忆任务)作为刺激任务,应用GRE—EPI序列采集血氧水平依赖性(BOLD)fMRI信号。应用SPM8软件对图像数据进行预处理和统计分析。结果(1)相对于对照任务,进行中任务主要激活双侧前额叶额极(x,y,z=6/-2,54/42,-8/-12,t=3.71),右侧的体感联合区(x,y,z=14,-62,64,t=4.64)、颞上回(x,y,z=42,-46,16,t=3.95)及旁中央小叶(x,y,z=10,-22,76,t=4.01),差异具有统计学意义俨〈0.01)。(2)前瞻记忆任务主要激活双侧前额叶额极(x,y,z=-2/6,42/54,-12/-12,t=3.28)及旁中央小叶(x,y,z=-30/10,-22/-22,72/76,t=4.25),左侧中央后回(x,y,z=-38,-46,64,t=3.13)及枕叶(x,y,z=-30,-70,0,t=3.97),差异具有统计学意义(P〈0.01)。结论前额叶额极(布罗德曼10区,BA10区)是前瞻记忆的关键激活脑区,BA10区内侧可能参与对外部线索的监控,支持前瞻记忆的BAIO门控假说。 展开更多
关键词 前瞻记忆 前额叶皮质 布罗德曼10区
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A Global Multiregional Proteomic Map of the Human Cerebral Cortex
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作者 Zhengguang Guo Chen Shao +12 位作者 Yang Zhang Wenying Qiu Wenting Li Weimin Zhu Qian Yang Yin Huang Lili Pan Yuepan Dong Haidan Sun Xiaoping Xiao Wei Sun Chao Ma Liwei Zhang 《Genomics, Proteomics & Bioinformatics》 SCIE CAS CSCD 2022年第4期614-632,共19页
The Brodmann area(BA)-based map is one of the most widely used cortical maps for studies of human brain functions and in clinical practice;however,the molecular architecture of BAs remains unknown.The present study pr... The Brodmann area(BA)-based map is one of the most widely used cortical maps for studies of human brain functions and in clinical practice;however,the molecular architecture of BAs remains unknown.The present study provided a global multiregional proteomic map of the human cerebral cortex by analyzing 29 BAs.These 29 BAs were grouped into 6 clusters based on similarities in proteomic patterns:the motor and sensory cluster,vision cluster,auditory and Broca’s area cluster,Wernicke’s area cluster,cingulate cortex cluster,and heterogeneous function cluster.We identified 474 cluster-specific and 134 BA-specific signature proteins whose functions are closely associated with specialized functions and disease vulnerability of the corresponding cluster or BA.The findings of the present study could provide explanations for the functional connections between the anterior cingulate cortex and sensorimotor cortex and for anxiety-related function in the sensorimotor cortex.The brain transcriptome and proteome comparison indicates that they both could reflect the function of cerebral cortex,but show different characteristics.These proteomic data are publicly available at the Human Brain Proteome Atlas(www.brain-omics.com).Our results may enhance our understanding of the molecular basis of brain functions and provide an important resource to support human brain research. 展开更多
关键词 brodmann area PROTEOMICS Cerebral cortex Cingulate cortex Sensorimotor cortex
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