Susić V, Masirević G
Physiol Behav. 1986;37(2):257-61. doi: 10.1016/0031-9384(86)90229-5.
Sleep patterns were studied in Mongolian gerbils and normative values were derived from 48 hour recordings, during a 24-hr light-dark cycle (LD 12:12). Behavioral and electrographic observations confirmed the existence of well defined sleep states: slow-wave sleep (SWS) and paradoxical sleep (PS). During the light period, sleep occupied slightly more than half of the 12 hour period, 57.13 +/- 0.002% out of which 49.64 +/- 0.007% was occupied by SWS and 8.07 +/- 0.007% by PS. There were 23 +/- 0.01 episodes of PS with a mean duration of 2.32 +/- 0.01 min. During the dark period, sleep occupied slightly less than half of the recording time (51.75 +/- 0.01%). They spent 41.62 +/- 0.006% in SWS and 10.12 +/- 0.02% in PS. The number of PS episodes was 32 +/- 0 with a mean duration of 2.28 +/- 0.01 min. Sleep cycle duration was 7.80 +/- 3.76 min. The ratio day/night sleep was 1.17 +/- 0.002 min. We found that the gerbil in captivity, unlike most rodents that are nocturnal, is a crepuscular animal, being more active at the transitions between light and dark.
在蒙古沙鼠中研究了睡眠模式，并在24小时明暗周期（LD 12:12）下通过48小时记录得出了正常数值。行为学和脑电图观察证实了明确的睡眠状态的存在：慢波睡眠（SWS）和异相睡眠（PS）。在光照期，睡眠占12小时时段的略多于一半，即57.13±0.002%，其中49.64±0.007%为慢波睡眠，8.07±0.007%为异相睡眠。异相睡眠有23±0.01次发作，平均时长为2.32±0.01分钟。在黑暗期，睡眠占记录时间的略少于一半（51.75±0.01%）。它们在慢波睡眠中花费41.62±0.006%的时间，在异相睡眠中花费10.12±0.02%的时间。异相睡眠发作次数为32±0次，平均时长为2.28±0.01分钟。睡眠周期时长为7.80±3.76分钟。昼夜睡眠比例为1.17±0.002分钟。我们发现，圈养的沙鼠与大多数夜行性啮齿动物不同，是一种晨昏性动物，在明暗交替时更为活跃。
