Mizunami M, Okada R, Li Y, Strausfeld N J
ARL Division of Neurobiology, The University of Arizona, Tucson 85721, USA.
J Comp Neurol. 1998 Dec 28;402(4):501-19.
This article describes novel attributes of the mushroom bodies of cockroaches revealed by recording from neurons in freely moving insects. The results suggest several hitherto unrecognized functions of the mushroom bodies: extrinsic neurons that discriminate between imposed and self-generated sensory stimulation, extrinsic neurons that monitor motor actions, and a third class of extrinsic neurons that predict episodes of locomotion and modulate their activity depending on the turning direction. Electrophysiological units have been correlated with neurons that were partially stained by uptake of copper ions and silver intensification. Neurons so revealed correspond to Golgi-impregnated or Lucifer yellow-filled neurons and demonstrate that their processes generally ascend to other areas of the protocerebrum. The present results support the idea of multiple roles for the mushroom bodies. These include sensory discrimination, the integration of sensory perception with motor actions, and, as described in the companion article, a role in place memory.
本文描述了通过对自由移动昆虫的神经元进行记录所揭示的蟑螂蘑菇体的新特性。结果表明蘑菇体有几个迄今未被认识到的功能：区分施加的和自身产生的感觉刺激的外在神经元、监测运动动作的外在神经元，以及第三类外在神经元，它们预测运动发作并根据转向方向调节其活动。电生理单元已与通过铜离子摄取和银增强而部分染色的神经元相关联。如此揭示的神经元对应于高尔基浸染或荧光黄填充的神经元，并表明它们的突起通常向上延伸到原脑的其他区域。目前的结果支持蘑菇体具有多种作用的观点。这些作用包括感觉辨别、感觉感知与运动动作的整合，以及如配套文章中所述的在位置记忆中的作用。
