Waters R S, Li C X, Oladehin A, Johnson E F, Dykes R W
Department of Anatomy and Neurobiology University of Tennessee, Memphis 38163.
Neuroreport. 1990 Nov-Dec;1(3-4):225-8. doi: 10.1097/00001756-199011000-00013.
We studied the distribution of the peripheral nerves innervating the distal forepaw by recording receptive fields from fascicles of the ulnar, radial, and median nerves and compared this result with the peripheral nerve representation in primary somatosensory (SI) cortex of cat. Our findings suggest that SI cortex receives input, in large part, from multiple peripheral nerves even when those nerves do not show a strong overlapping pattern in the periphery. This overlap pattern observed in SI cortex may be responsible, in part, for the immediate reorganization which is known to follow peripheral nerve deafferentation.
我们通过记录尺神经、桡神经和正中神经束的感受野，研究了支配前爪远端的外周神经分布，并将这一结果与猫的初级体感（SI）皮层中的外周神经表征进行了比较。我们的研究结果表明，即使这些神经在外周没有表现出强烈的重叠模式，SI皮层在很大程度上也会从多条外周神经接收输入。在SI皮层中观察到的这种重叠模式可能部分导致了已知的外周神经去传入后立即发生的重组。
