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fMRI在利手、非利手简单运动模式下手运动区脑功能研究中的应用 被引量:3
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作者 王晓东 夏鹤春 +2 位作者 马辉 黄耀武 朱凯 《山东医药》 CAS 北大核心 2010年第2期14-15,共2页
目的探讨脑功能磁共振成像(fMRI)在利手、非利手简单运动模式下手运动区脑功能研究中的应用价值。方法选择17例健康志愿者,均为右利手,分别行简单手指运动—拇指对掌运动,采用3.0T MRI扫描机,平面回波成像(EPI)技术,应用主机自带分析软... 目的探讨脑功能磁共振成像(fMRI)在利手、非利手简单运动模式下手运动区脑功能研究中的应用价值。方法选择17例健康志愿者,均为右利手,分别行简单手指运动—拇指对掌运动,采用3.0T MRI扫描机,平面回波成像(EPI)技术,应用主机自带分析软件进行数据处理。将MRI信号图重叠在常规MRI T1 FLAIR序列横断面或矢状位图像上,得到fMRI图像,通过与常规MRI图像对比,观察运动皮层活化区出现的形式、位置、数目。结果在利手及非利手运动模式下,17例均获得良好对侧初级运动区(M1)区及部分双侧辅助运动区(SMA)和运动前区(PMA)激活图像,非利手者有部分获得同侧M1区激活图像。结论fMRI可用于利手、非利手简单运动模式下手运动区脑功能的研究。 展开更多
关键词 利手模式 利手模式 皮层运动区 磁共振成像技术
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When Newspapers Go Mobile: Utilizing the Third Screen to Make a Profit
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作者 Sabryna L. Cornish 《Journalism and Mass Communication》 2012年第6期667-673,共7页
This paper examines the effect of adding the third screen to current newspaper business models. Newspapers have begun to employ such technologies to bolster audience numbers and to attract more advertisers. The compar... This paper examines the effect of adding the third screen to current newspaper business models. Newspapers have begun to employ such technologies to bolster audience numbers and to attract more advertisers. The comparison of the old revenue model of newspapers with a new emerging business model utilizing newer technologies allows a framework of a possibly new model to be applied to older models. Media are desperate to gain audiences lost in the past decade and trying to reformulate their current business models to reflect new technology. The way media are framing the third screen as a possible savior to their current business model shows that the media realize the old model of revenue through advertising and subscriptions is antiquated. This paper presents a new business model for media by embracing new technologies and adds to current scholarship of media management in a new technologically inclined world. 展开更多
关键词 CONVERGENCE NEWSPAPERS online economic model
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