Multiple tactile areas in cerebellar cortex: another patchy cutaneous projection to granule cell columns in rats
Multiple tactile areas in cerebellar cortex: another patchy cutaneous projection to granule cell columns in rats
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DOI：
10.1016/0006-8993(78)91000-4
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发表时间：
1978-11
期刊：
影响因子：
2.9
通讯作者：
G. M. Shambes;D. Beermann;W. Welker
中科院分区：
文献类型：
--
作者：
G. M. Shambes;D. Beermann;W. Welker
图1.单纯小叶(B叶)的断裂体位。触觉投射到左侧单纯小叶(LS-B)用小雕像(A)和斑块马赛克(B)两种方法显示。答：人偶地图上的数据是根据6次实验整理的。每个雕像上发黑的部分显示了外围感受野(RF)的位置，当受到刺激时，这些感受野激活颗粒细胞(GC)层的反应。每个小雕像在LS上的位置表示记录电极穿孔的位置。LS-B上这一触觉区域的相对位置由D中脑图上的虚线区域表示。LS-B的投射仅起源于面部和口腔内及其周围的区域(牙龈、门牙、嘴唇和触须)。B：这里的每个轮廓贴片都限定了A中具有公共射频的小雕像。这张示意图显示了特定口周和面部部位的射频投影的贴片状阵列。例如，位于B叶中心区域的大的上唇尖(Ul)斑块在形状和大小上与A的Dashedline区域内的12个上嘴唇雕像占据的面积相同。向相邻斑块的RF投影是不同的，显示出分离或断裂的组织模式。然而，斑块内的组织模式是体视性的，至少在A中被虚线包围的上唇斑块中可以看到。缩写：G，牙龈；Li，下门牙；11，下唇；UI，上门牙；UL，上唇；V，触须。C：口周和口内区域示意图，显示突出到LS-B的主要皮肤结构。缩写：与小脑BD图相同，表示单纯小叶B叶LS触觉区域(黑点)的位置。A和B之间的毫米刻度表示叶状图的放大。在D以下的厘米刻度表示脑图的放大因子。
Fig. 1. Fractured somatotopy in lobulus simplex (folium B). Tactile projections to left lobulus simplex (LS-B) are illustrated by both figurine (A) and patchy-mosaic (B) methods. A: data in figurine map is collated from 6 experiments. The blackened portions on each figurine show the locations of peripheral receptive fields (RF's) which, when stimulated, activate responses in the granule cell (GC) layer. The position of each figurine on LS indicates the site of a recording electrode puncture. The relative location of this tactile area on LS-B is indicated by the dotted region on brain diagram in D. Projections to LS-B originate only in regions within and around the face and mouth (gingiva, incisors, lips and vibrissae). B: each outlined patch here circumscribes those figurines in A having a common RF. This schematic drawing illustrates the patch-like array of RF projections from specific perioral and face parts. For example, the large upper tip (ul) patch located in the central region of the folium in B is congruent in shape and size with the same area occupied by the 12 upper lip figurines within the dashedline region of A. The RF projection to adjacent patches are different, demonstrating a disjunctive or'fractured'pattern of organization. However, the pattern of organization within the patches is somatotopic as seen at least in the upper lip patch surrounded by dashed lines in A. Abbreviations: g, gingiva; li, lower incisor; 11, lower lip; ui, upper incisor; ul, upper lip; V, vibrissae. C: diagram of perioral and intraoral regions showing major cutaneous structures that project to LS-B. Abbreviations: same as in BD Drawing of cerebellum indicating location of the LS tactile area (black dots) in folium B of lobulus simplex. Millimeter scale between A and B indicates magnification of folial diagrams. Centimeter scale under D indicates enlargement factor for brain diagram.