Functional Mapping of the Human Somatosensory Cortex with Echo‐Planar MRI
Functional Mapping of the Human Somatosensory Cortex with Echo‐Planar MRI
复制标题
利用平面回波 MRI 绘制人类体感皮层的功能图
DOI:
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发表时间:
1995
影响因子:
3.3
通讯作者:
Y. Miyashita
中科院分区:
文献类型:
--
作者:
K. Sakai;E. Watanabe;Y. Onodera;H. Itagaki;E. Yamamoto;H. Koizumi;Y. Miyashita
The somatotopical organization of the human somatosensory cortex was analyzed with echo‐planar imaging at 1.5 Tesla, utilizing deoxyhemoglobin as an endogenous contrast medium. Scrubbing stimulation at a frequency of 3 Hz was applied to one of three cutaneous areas: toes, fingertips, and tongue tip. Parasagittal echo‐planar slices were obtained every 2 s. We found focal bands of increased signal intensity (4% on average) during the stimulation, with a rise time of 2–6 s. These activated bands were located on the contralateral postcentral gyrus. The cortical responses from the three stimulation sites were anatomically distinct and organized medially‐to‐laterally in the order of toes, fingertips, and tongue tip.
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DOI:
10.1073/pnas.83.4.1140
发表时间:
1986-02-01
影响因子:
11.1
作者:
FOX, PT;RAICHLE, ME
通讯作者:
RAICHLE, ME
DOI:
10.1073/pnas.89.12.5675
发表时间:
1992-06-15
影响因子:
11.1
作者:
KWONG, KK;BELLIVEAU, JW;ROSEN, BR
通讯作者:
ROSEN, BR
DOI:
10.1073/pnas.89.22.11069
发表时间:
1992-11-15
影响因子:
11.1
作者:
BLAMIRE, AM;OGAWA, S;SHULMAN, RG
通讯作者:
SHULMAN, RG
DOI:
10.1073/pnas.89.13.5951
发表时间:
1992-07-01
影响因子:
11.1
作者:
OGAWA, S;TANK, DW;UGURBIL, K
通讯作者:
UGURBIL, K