Bouyer J J, Rougeul A, Buser P
Arch Ital Biol. 1982 May;120(1-3):95-110.
A microelectrode study was performed in n. ventralis posterior (VP) of the fully alert cat, to study the correlation between thalamic unit activity and the cortical synchronized 14 c/sec rhythms that develop in the somatic area I for forepaw and wrist projections, when the animal is in a state of "quiet waking". (i) Only a small proportion of VP cells underwent changes during the studied cortical rhythms. (ii) None of these cells were typical thalamo-cortical relay cells carrying tactile messages to the cortex. (iii) Cells altering their discharge were of two types, rhythmic (R) cells, discharging at the frequency of the cortical rhythms, and tonic (T) cells, displaying an overall, sustained change during the whole sequence of cortical 14 c/sec. (iv) Among R cells, some were long axon thalamo-cortical cells and others, likely to be interneurones. (v) Some T cells increased their firing rate during rhythmic trains, others came into silence during the same period. (vi) The thalamic circuitry responsible for this particular set of "quiet waking rhythms" is discussed.
在完全清醒的猫的腹后核（VP）进行了一项微电极研究，以探讨丘脑单位活动与躯体感觉I区前爪和腕部投射所产生的皮质同步14赫兹节律之间的相关性，此时动物处于“安静觉醒”状态。（i）在研究的皮质节律期间，只有一小部分VP细胞发生了变化。（ii）这些细胞中没有一个是向皮质传递触觉信息的典型丘脑 - 皮质中继细胞。（iii）放电发生改变的细胞有两种类型，节律性（R）细胞，以皮质节律的频率放电，以及紧张性（T）细胞，在整个皮质14赫兹的序列中表现出整体持续的变化。（iv）在R细胞中，一些是长轴突丘脑 - 皮质细胞，另一些可能是中间神经元。（v）一些T细胞在节律性放电序列中增加了放电频率，另一些在同一时期则停止放电。（vi）讨论了负责这组特定“安静觉醒节律”的丘脑神经回路。
