Spatiotopic organization in human superior colliculus observed with fMRI
Spatiotopic organization in human superior colliculus observed with fMRI
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DOI：
10.1006/nimg.2000.0590
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发表时间：
2000-07-01
期刊：
影响因子：
5.7
通讯作者：
Cohen, MS
中科院分区：
文献类型：
--
作者：
DuBois, RM;Cohen, MS
空间复制是视觉大脑的基本组织原则。使用功能性磁共振成像，我们已经证明了可靠的数据，与人类上级丘的空间组织一致。五名受试者进行心脏触发的回波平面图像采集，在此期间，他们看到交替的左，右视觉半野刺激。从变量TR的强度变化被删除，并评估数据与偏侧刺激的相关性。这些数据表明，强烈的优先反应的左侧上级丘的右侧的视觉空间，反之亦然。这与以前在动物系统中的发现是一致的，并证实了人类上级丘中存在空间映射。(C)北京大学出版社.
Spatiotopy is a fundamental organizing principle of the visual brain. Using functional magnetic resonance imaging, we have demonstrated reliable data, consistent with spatiotopic organization in the human superior colliculi. Five subjects underwent cardiac-triggered echo-planar image acquisition, during which they viewed alternating left and right visual hemifield stimulation. Intensity variations from the variable TR were removed, and the data were evaluated for correlation with the lateralized stimulus. The data indicate a strongly preferential response of the left superior colliculus to the right side of visual space, and vice versa. This is consistent with previous findings in animal systems and confirms the existence of spatiotopy in the human superior colliculus. (C) 2000 Academic Press.