Cattarelli M, Chanel J
Physiol Behav. 1979 Nov;23(5):831-8. doi: 10.1016/0031-9384(79)90186-0.
In freely moving rats, mitral cells multiunit activity and vigilance states (EEG and neck muscles EMG) were recorded during stimulations by some odorous stimuli known from previous experiments to elicit distinct emotional behaviors. An awaking influence may be pointed out; the greatest awaking influence is noted for the opposite most biologically meaningful stimuli: odor of fox (predator of the rat) and odor of grouped rats. Mitral cells responsiveness is not only modulated by the biological meaning of the olfactory stimulus but is also under the control of the arousal level of the animal; it decreases from wakefulness (W) to slow wave sleep (SWS).
在自由活动的大鼠中，在一些先前实验中已知能引发不同情绪行为的气味刺激下，记录了二尖瓣细胞的多单位活动以及警觉状态（脑电图和颈部肌肉肌电图）。可以指出存在一种唤醒影响；对于最具生物学意义的相反刺激，即狐狸（大鼠的捕食者）的气味和群居大鼠的气味，观察到最大的唤醒影响。二尖瓣细胞的反应性不仅受到嗅觉刺激生物学意义的调节，还受动物唤醒水平的控制；其反应性从清醒（W）状态到慢波睡眠（SWS）状态会降低。
