Effects of rearing environments upon sleep-waking parameters in rats
Effects of rearing environments upon sleep-waking parameters in rats
复制标题
饲养环境对大鼠睡眠觉醒参数的影响
DOI：
10.1016/0031-9384(81)90164-5
复制
发表时间：
1981
影响因子：
2.9
通讯作者：
M. Shibagaki
中科院分区：
文献类型：
--
作者：
S. Kiyono;M. Seo;M. Shibagaki
研究了不同饲养条件对笼大鼠睡眠-觉醒参数的影响。在50-60日龄时，将雄性幼崽分为富裕（EC）、标准群体（SC）和贫困条件（IC），每种条件下饲养30-50天。测波记录显示，在夜间（18.00-06.00小时），与SC组和IC组相比，EC组的唤醒时间占总记录时间的比例（%Ar）下降，慢波睡眠百分比（%SS）、异态睡眠百分比（%PS）和平均PS持续时间显著增加。三组睡眠时间与总睡眠时间之比（PS/TS）相似。在白天（06.00-18.00小时），除平均PS持续时间外，所有研究项目的EC变化均消失。发现EC-IC差异主要是由于EC而不是IC。
Effects of environmentally different rearing conditions upon sleep-waking parameters were studied in Long-Evans hooded rats. Male littermates were assigned to enriched (EC), standard colony (SC) and impoverished conditions (IC) at 50–60 days old and kept under each condition for 30–50 days. Polygraphic recordings revealed that the ratio of arousal time to total recording time (%Ar) decreased, and that percent slow wave sleep (%SS), percent paradoxical sleep (%PS) and mean PS duration increased significantly in EC animals compared to SC and IC groups during the night (18.00–06.00 hr). The ratio of PS to total sleep time (PS/TS) was similar in the three groups. The EC changes disappeared during the day (06.00–18.00 hr) in all items studied except for the mean PS duration. The EC-IC difference was found to be mainly due to EC and not to IC.