Danielsson I, Norrsell U
Acta Physiol Scand. 1986 Dec;128(4):579-86. doi: 10.1111/j.1748-1716.1986.tb08015.x.
Sampling of unitary, neural activity was made with tungsten electrodes in the mesencephalon of cats anaesthetized with chloralose. Possible activation was studied with adequate somatosensory, visual and acoustic stimuli as well as electrical nerve stimulation via electrodes embedded in each forelimb and the contralateral hindlimb. Fifty units or about 10% of the total population were found in clusters of strictly somatosensory units which were activated by light tactile stimulation and with short latency from the contralateral body half. Some of these units had small receptive fields, but others showed convergence of information from large receptive fields which sometimes included parts of the ipsilateral body half. The different clusters appeared to constitute parts of a coherent structure which is located between 3-5 mm lateral to the midline at the anterior/posterior level of the trochlear nucleus, and with slanted dorsal-ventral distribution with the caudal parts above and the rostral parts below the Sylvian aqueduct. A somatotopical arrangement was found with the forelimb rostral to the hindlimb, and the suggested structure may be the somatosensory intercollicular nucleus which has been described by others.
在用氯醛糖麻醉的猫的中脑，用钨电极对单一神经活动进行采样。通过适当的体感、视觉和听觉刺激以及通过嵌入每个前肢和对侧后肢的电极进行神经电刺激，研究了可能的激活情况。在严格的体感单元簇中发现了50个单元，约占总数的10%，这些单元由轻触觉刺激激活，并且从对侧身体半部的潜伏期很短。其中一些单元具有小的感受野，但其他单元显示来自大感受野的信息汇聚，这些感受野有时包括同侧身体半部的部分。不同的簇似乎构成了一个连贯结构的部分，该结构位于滑车神经核前后水平中线外侧3 - 5毫米处，并且具有倾斜的背腹分布，尾部部分在中脑导水管上方，头部部分在中脑导水管下方。发现了一种躯体定位排列，前肢在尾肢的前方，所提示的结构可能是其他人所描述的体感间丘核。
