Gentsch C, Lichtsteiner M, Feer H
Experientia. 1983 Dec 15;39(12):1412-4. doi: 10.1007/BF01990131.
Individually and group-housed rats of both sexes were compared in respect to spontaneous rotational movements when exposed to a novel environment. Thereby, individually housed animals showed a higher number of rotational movements than group-housed controls. During an L12:D12 cycle, such movements occurred most frequently at the beginning of the dark phase, when locomotor activity was highest. It is assumed that these rotations are part of the hyperreactivity toward a novel environment induced by long-term individual housing.
将单独饲养和群居的雌雄大鼠置于新环境中，比较它们的自发旋转运动。结果发现，单独饲养的动物比群居对照动物表现出更多的旋转运动。在12小时光照：12小时黑暗的周期中，此类运动最常发生在黑暗期开始时，此时运动活动最为活跃。据推测，这些旋转是长期单独饲养导致的对新环境过度反应的一部分。
