Bauer R
Exp Brain Res. 1982;48(2):245-55. doi: 10.1007/BF00237220.
On the postlateral gyrus of the cat striate cortex the cells' preferred orientation was measured as a function of cortical depth in penetrations as parallel as possible to the radial fibre bundles. According to the penetration angle and in agreement with the current model of orientation columns, there was a low orientation drift in layers 2-4. At the transition between layers 4 and 5 an orientation shift of 45-90 deg was found in most penetrations. The orientation differences between adjacent recording sites in lower layers was normally low too, but clearly higher than in upper layers. The results are discussed in terms of more independent orientation mechanisms in upper and lower layers.
在猫纹状皮质的后外侧回上，尽可能平行于放射状纤维束进行穿刺，测量不同皮质深度细胞的偏好取向。根据穿刺角度并与当前的取向柱模型一致，在第2 - 4层存在低取向漂移。在第4层和第5层之间的过渡处，大多数穿刺中发现取向偏移45 - 90度。较低层中相邻记录位点之间的取向差异通常也较小，但明显高于上层。根据上下层中更独立的取向机制对结果进行了讨论。
