Mooney R D, Klein B G, Jacquin M F, Rhoades R W
Brain Res. 1984 Dec 24;324(2):361-5. doi: 10.1016/0006-8993(84)90050-7.
Intracellular recording and horseradish peroxidase (HRP) injection techniques were used to delineate the structural and functional properties of superior collicular (SC) neurons in hamsters. Of 34 cells recovered from the deep laminae (those ventral to the stratum opticum--SO), 26 were exclusively somatosensory and 10 of these extended dendrites into the superficial layers, the stratum griseum superficiale (SGS) and SO. In 2 instances, dendrites extended only to the SO, but in 8 others they reached the SGS. Three of the latter cells had dendrites which terminated just beneath the pial surface. These findings show that an anatomical substrate for communication from superficial to deep layer cells exists in the hamster SC, but that such communication may not necessarily be reflected in the response of deep layer neurons.
采用细胞内记录和辣根过氧化物酶（HRP）注射技术来描绘仓鼠上丘（SC）神经元的结构和功能特性。在从深层（视层——SO腹侧的那些层）回收的34个细胞中，26个仅对躯体感觉有反应，其中10个细胞的树突延伸至浅层，即浅灰色层（SGS）和SO。在2个实例中，树突仅延伸至SO，但在其他8个实例中，它们到达了SGS。后一组细胞中有3个细胞的树突在软脑膜表面下方终止。这些发现表明，仓鼠上丘中存在从浅层细胞到深层细胞进行通信的解剖学基础，但这种通信不一定会在深层神经元的反应中体现出来。
