Mukhametov L M, Lyamin O I, Chetyrbok I S, Vassilyev A A, Diaz R P
Severtsov Institute of Evolutionary Morphology, USSR Academy of Sciences, Moscow.
Experientia. 1992 Apr 15;48(4):417-9. doi: 10.1007/BF01923447.
For the first time, sleep was studied in a representative of the order of Sirenia. Slow wave sleep occupied 27%, and paradoxical sleep 1% of the total recording time in the Amazonian manatee. Trichechus inunguis. The circadian rhythmicity of sleep was pronounced. During the sleep period, the manatee woke up for a short time for each respiratory act. Interhemispheric asynchrony of the electrocortical slow wave activity was found.
首次对海牛目动物的睡眠进行了研究。在亚马逊海牛（Trichechus inunguis）中，慢波睡眠占总记录时间的27%，异相睡眠占1%。睡眠的昼夜节律明显。在睡眠期间，海牛每次呼吸动作都会短暂醒来。发现了电皮层慢波活动的半球间异步性。
