Tricas T C, Highstein S M
Washington University School of Medicine, Department of Otolaryngology, St. Louis, MO 63110.
Exp Brain Res. 1990;83(1):233-6. doi: 10.1007/BF00232215.
The activity of single lateral line afferent neurons was chronically recorded in free-swimming toadfish. CNS efferent neurons, known to be inhibitory upon peripheral lateral line mechanoreceptors, were activated by stroboscopic and natural visual stimuli. Discharges from irregular-type afferents caused by water movement relative to lateral line neuromasts decreased following stroboscopic stimulation of unrestrained and behaving fish. Visual presentation of natural prey also decreased mechanically evoked afferent firing rates. We show that visual stimuli can activate the efferent system and function in the peripheral processing of mechanical stimuli to the lateral line in biologically relevant contexts.
在自由游动的蟾鱼中，长期记录单个侧线传入神经元的活动。已知对周围侧线机械感受器具有抑制作用的中枢神经系统传出神经元，可通过频闪和自然视觉刺激激活。在对不受约束且正常活动的鱼进行频闪刺激后，由水相对于侧线神经丘的运动引起的不规则型传入神经元的放电减少。天然猎物的视觉呈现也降低了机械诱发的传入放电率。我们表明，视觉刺激可以激活传出系统，并在生物学相关背景下对外周侧线机械刺激的处理中发挥作用。
