Mariño J, Martinez L, Canedo A
Department of Physiology, Faculty of Medicine, Santiago de Compostela, Spain.
Neurosci Lett. 1996 Nov 22;219(2):107-10. doi: 10.1016/s0304-3940(96)13184-0.
Simultaneous recordings were obtained from cuneothalamic (extracellular) and thalamocortical (intracellular) cells in chloralose anesthetized cats. It was found that cuneothalamic neurons present slow rhythmicity (0.1-1 Hz) tightly coupled to slow oscillations of thalamocortical neurons. This coupling was not due to a direct synaptic linkage but rather produced by other (s) structure (s) probably the cortex. Furthermore, the cuneothalamic neurons also showed delta rhythms (1-4 Hz) coherently oscillating with the delta rhythms of thalamocortical cells which suggests that these rhythms are more widespread than previously thought, and may be a general phenomenon characterizing quiet sleep in multiple structures.
在水合氯醛麻醉的猫中，同时记录楔丘脑（细胞外）和丘脑皮质（细胞内）细胞的活动。研究发现，楔丘脑神经元呈现缓慢的节律性（0.1 - 1赫兹），与丘脑皮质神经元的缓慢振荡紧密耦合。这种耦合并非由于直接的突触连接，而是可能由其他结构（可能是皮质）产生。此外，楔丘脑神经元还表现出与丘脑皮质细胞的δ节律（1 - 4赫兹）相干振荡，这表明这些节律比之前认为的更为广泛，可能是多个结构中安静睡眠的一种普遍现象。
