VISUAL TOPOGRAPHY OF STRIATE PROJECTION ZONE (MT) IN POSTERIOR SUPERIOR TEMPORAL SULCUS OF THE MACAQUE
VISUAL TOPOGRAPHY OF STRIATE PROJECTION ZONE (MT) IN POSTERIOR SUPERIOR TEMPORAL SULCUS OF THE MACAQUE
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DOI：
10.1152/jn.1981.46.3.621
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发表时间：
1981-01-01
影响因子：
2.5
通讯作者：
GROSS, CG
中科院分区：
文献类型：
--
作者：
GATTASS, R;GROSS, CG
猕猴颞上沟（MT）后部纹状投影区视野的表征[M]。用多单元电极对束状肌进行定位。这些动物被固定和麻醉，在每只动物中，通常在几个记录过程中进行25-35次电极穿透。MT包含了几乎整个对侧视野的表征。垂直子午线的表现形式是它的腹外侧边界，位于颞上沟（STS）下岸底部附近。横贯横贯化验室地板的水平子午线。上野位于腹侧和前部，下野位于背侧和后部。内侧边界位于STS层与其上岸的交界处。MT与纹状皮层相似，是视野的一阶转换。在这两个区域，接受野的大小和皮质放大随偏心度增加而增加。MT比纹状皮层小得多，在给定的偏心率和粗糙的地形下具有更大的接受野。猕猴的MT与新大陆灵长类动物的视觉区MT明显同源。
The representation of the visual field in the striate projection zone in the posterior portion of the superior temporal sulcus (MT) of the macaque [M. fascicularis] was mapped with multiunit electrodes. The animals were immobilized and anesthetized and in each animal 25-35 electrode penetrations were typically made over several recording sessions. MT contains a representation of virtually the entire contralateral visual field. The representation of the vertical meridian forms its ventrolateral border and lies near the bottom of the lower bank of the superior temporal sulcus (STS). The representation of the horizontal meridian runs across the floor of STS. The upper field is located ventral and anterior and the lower field dorsal and posterior. The medial border lies at the junction of the floor of STS and its upper bank. MT is similar to striate cortex in being a 1st-order transformation of the visual field. In both areas, receptive-field size and cortical magnification increase with eccentricity. MT is much smaller than striate cortex and has much larger receptive fields at a given eccentricity and a cruder topography. MT in the macaque is apparently homologous to visual area MT in New World primates.