Crighel E, Kreindler A, Sirian S
Acta Neurobiol Exp (Wars). 1978;38(4):167-78.
Paucisynaptic connections between n. lateralis posterior (LP) and dorsal hippocampus (Hip) have been demonstrated in acute experiments. In the free moving cats, with chronic implanted electrodes on the neocortex, in LP, pulvinar (Pul), VA and VL nuclei of the thalamus and in the dorsal hippocampus (Hip), the theta waves recorded in LP, Pul and Hip were not of the same frequency and origin. In wakefulness and in slow-wave sleep, the theta waves were of 3.5-4 c/s and occurred exclusively or predominantly in Pul-LP, while in paradoxical sleep they were of 5-6 c/s, occurred' in Hip and invaded the Pul-LP. These two types of theta waves represent two distinct modalities of their organization and reflect the involvement of different mechanisms in the different phases of sleep.
在急性实验中已证实丘脑后外侧核（LP）与背侧海马体（Hip）之间存在少突触连接。在自由活动的猫中，在新皮层、LP、丘脑枕（Pul）、丘脑腹前核（VA）和腹外侧核（VL）以及背侧海马体（Hip）上慢性植入电极，在LP、Pul和Hip中记录到的θ波频率和起源不同。在清醒和慢波睡眠状态下，θ波频率为3.5 - 4次/秒，仅在Pul - LP区域出现或主要在此区域出现，而在异相睡眠状态下，θ波频率为5 - 6次/秒，出现在Hip区域并侵入Pul - LP区域。这两种类型的θ波代表了它们组织的两种不同模式，并反映了睡眠不同阶段不同机制的参与情况。
