Waters R S, Favorov O, Mori A, Asanuma H
Exp Brain Res. 1982;48(3):335-44. doi: 10.1007/BF00238609.
The physiological properties of neurons lying along the posterior bank of the ansate sulcus and the projection of these neurons to area 4 gamma of the motor cortex of the cat were studied and the following results were obtained: (1) Short latency antidromic responses were recorded from neurons along the medial-lateral bank of the posterior ansate sulcus following intracortical microstimulation (ICMS) delivered to motor cortex, area 4 gamma. (2) The posterior ansate region projects topographically to the motor cortex. Neurons in the most medial part of the ansate region project to the medial part of 4 gamma, while neurons in the central and lateral parts of the ansate region project to the more lateral parts of area 4 gamma. (3) In 33 cases, receptive field information was available for both the antidromically activated ansate neuron and from neurons around the stimulating site in 4 gamma. In 58% of the cases, both cortical sites received afferent input from within the same part of the periphery. (4) Afferent input to the motor cortex was examined following combined ablations of the primary somatosensory cortex (SI) and third somatosensory cortex (SIII) including all of area 5. We conclude that the integrity of these cortical regions is not necessary for afferent input to reach the motor cortex.
对位于袢沟后缘的神经元的生理特性以及这些神经元向猫运动皮层4γ区的投射进行了研究，获得了以下结果：(1) 向运动皮层4γ区进行皮层内微刺激（ICMS）后，在袢沟后缘的内侧-外侧缘的神经元中记录到了短潜伏期逆向反应。(2) 袢沟后部区域向运动皮层进行拓扑投射。袢沟区域最内侧部分的神经元投射到4γ区的内侧部分，而袢沟区域中央和外侧部分的神经元投射到4γ区更外侧的部分。(3) 在33例中，可获得逆向激活的袢沟神经元和4γ区刺激部位周围神经元的感受野信息。在58%的病例中，两个皮层部位都接受来自外周同一部分内的传入输入。(4) 在联合切除包括5区全部的初级体感皮层（SI）和第三体感皮层（SIII）后，检查了向运动皮层的传入输入。我们得出结论，这些皮层区域的完整性对于传入输入到达运动皮层不是必需的。
