Absence of penile erections during paradoxical sleep. Peculiar penile events during wakefulness and slow wave sleep in the armadillo
Absence of penile erections during paradoxical sleep. Peculiar penile events during wakefulness and slow wave sleep in the armadillo
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DOI：
10.1046/j.1365-2869.2001.00259.x
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发表时间：
2001-09-01
影响因子：
4.4
通讯作者：
Marcos, HJA
中科院分区：
文献类型：
--
作者：
Affanni, JM;Cervino, CO;Marcos, HJA
对长毛毛鞭犰狳的坐骨海绵体肌、球海绵体肌和阴茎提肌的脑电图（EEG）和肌电图（EMG）在不同行为状态下进行了长期监测。这种动物有一个非常长的阴茎，在觉醒（W），慢波睡眠（SWS）和反常睡眠（PS）期间表现出显着的现象。在W期间，它保持缩回在皮肤容器内。在SWS期间，可以观察到阴茎突出以及非常复杂的运动。阴茎勃起是一种非勃起事件，在此期间，阴茎保持在其插座之外，但没有刚性。阴茎勃起仅在SWS期间观察到。与其他哺乳动物相比，PS期间不发生勃起。在这一阶段，阴茎肌肉共享该阶段的身体肌肉组织特征的张力不足。对这些阴茎事件的机制提出了一些思考。
The electroencephalogram (EEG) together with electromyogram (EMG) of the ischiocavernosus, bulbocavernosus and levator penis muscles were chronically monitored across behavioral states of the armadillo Chaetophractus villosus. This animal has a very long penis, which exhibits remarkable phenomena during wakefulness (W), slow wave sleep (SWS) and paradoxical sleep (PS). During W it remains retracted within a skin receptacle. During SWS penile protrusion can be observed together with very complex movements. Protrusion is a non erectile event during which the penis remains out of its receptacle but without rigidity. Penile erections are observed only during SWS. Contrasting with other mammals, no erections occur during PS. During this phase the penile muscles share the atonia of the body musculature characteristic of that phase. Some reflections on mechanisms of those penile events are presented.