Shlyk G G, Rotenberg V S, Shirvinskaia M A, Koro'lkov V I, Magedov V S
Kosm Biol Aviakosm Med. 1989 Sep-Oct;23(5):12-7.
The data on the sleep structure of two rhesus monkeys, Vernyi and Gordyi, during their 7-day space flight on Cosmos-1667 and a control study staged a month after recovery are discussed. Sleep structure was changed to the greatest extent the night before launch when additional stress factors were involved. During the first night in space Vernyi showed the so-called recoil effect. Later his sleep structure became stabilized: the specific weight of fast sleep diminished and the fast sleep/delta/sleep index in the first two cycles decreased. In the ground-based control study, sleep parameters pointed to a deteriorated health status of the animal: his fast sleep patterns changed and delta-sleep often reached its maximum after a fast sleep episode. In this animal adaptation was associated with fast sleep restructuring. In the second primate, Gordyi, the process of adaptation was extended and took three nights. This animal consistently showed low parameters of delta-sleep during both fright and postflight control study; it exhibited no recoil phenomenon after its reduction in the prelaunch night. The structure of sleep indicated that it played a lesser role in the overall process of adaptation.
本文讨论了两只恒河猴（韦尔尼和戈尔迪）在“宇宙-1667”号上进行7天太空飞行期间的睡眠结构数据，以及恢复一个月后进行的对照研究。发射前一晚，当涉及额外的压力因素时，睡眠结构变化最大。在太空的第一个晚上，韦尔尼出现了所谓的反冲效应。后来它的睡眠结构趋于稳定：快速眼动睡眠的比重下降，前两个周期的快速眼动睡眠/δ睡眠指数降低。在地面对照研究中，睡眠参数表明该动物的健康状况恶化：其快速眼动睡眠模式改变，快速眼动睡眠后δ睡眠常常达到最大值。在这只动物身上，适应与快速眼动睡眠的重组有关。在第二只灵长类动物戈尔迪身上，适应过程延长，持续了三个晚上。在飞行期间和飞行后对照研究中，这只动物的δ睡眠参数一直较低；在发射前一晚减少后，它没有出现反冲现象。睡眠结构表明，睡眠在整个适应过程中所起的作用较小。
