WIERSMA C A G, TURNER R S
J Gen Physiol. 1950 Nov;34(2):137-45. doi: 10.1085/jgp.34.2.137.
It has been shown that stimulation of synapses of the giant motor fibers of the third roots of Cambarus clarkii can block transmission at other synapses located on the same fiber. Peripherally located synapses block most synapses which are more centrally located. The reverse is true in a small number of cases. Possible reasons for this difference are discussed. It was further found that the two medial giant fibers in fresh, carefully dissected, preparations show a functional connection in the brain. It is probable that, under natural conditions, both medial giant fibers are always active at the same time.
已经表明，刺激克氏原螯虾第三对根的巨大运动纤维的突触可以阻断位于同一纤维上的其他突触的传递。外周突触会阻断大多数更靠近中枢的突触。在少数情况下则相反。讨论了这种差异的可能原因。进一步发现，在新鲜、仔细解剖的标本中，两条内侧巨大纤维在脑中显示出功能联系。在自然条件下，两条内侧巨大纤维很可能总是同时活跃。
