Fourment A, Hirsch J C
Neurosci Lett. 1980 Feb;16(2):149-54. doi: 10.1016/0304-3940(80)90335-3.
Juxtacellular DC recordings from lateral geniculate body (LGB) relay cells were performed in completely undrugged cats during natural sleep. Paradoxical sleep (P) was characterized by a decrease in synaptic (S) potentials and an increase in spike discharge as compared to slow wave sleep. During the P grouped discharges simultaneous with eye movements and cortical waves, a further decrease in S potentials accompanied by an increased cell excitability as indicated by the higher probability to elicit an antidromic spike occurred. The results suggest that the decrease of S potentials in P is not the result of presynaptic inhibition but that most of them reach firing level during the P grouped discharges.
在完全未用药的猫处于自然睡眠状态时，对外侧膝状体（LGB）中继细胞进行了细胞旁直流电记录。与慢波睡眠相比，异相睡眠（P）的特征是突触（S）电位降低，而峰电位发放增加。在与眼球运动和皮层波同时出现的P期成簇放电期间，S电位进一步降低，同时细胞兴奋性增加，这表现为引发逆向峰电位的概率更高。结果表明，P期S电位的降低不是突触前抑制的结果，而是在P期成簇放电期间，大多数S电位达到了发放水平。
