结论生物体存在多种频率的生物节律，其节律的特征受到光-暗循环的影响。
Conclusion Multi-frequency biological rhythms do exist in mice and they are affected by different L-D cycle.
而幽暗地域并不知道春夏秋冬四季变幻，也没有光与暗的往复循环，但是卓尔仍然根据古代早已被遗忘的地表生活祖先们的规律生活着。
The Underdark did not know seasons and had no cycle of light and dark, but the drow still went about their business according to the ancient, forgotten rhythms of their light-dwelling ancestors.
这种光暗循环有助于我们的身体适应环境的变化。
This light-dark cycle is good for our bodies to predict changes in the environment.
目的研究不同光暗循环周期对小鼠学习记忆的影响。
Objective To study the effect of different light-dark cycles on learning and memory in mice.
结果小鼠自发运动活动周期与光暗循环周期一致；不同光暗周期对小鼠外周血白细胞计数及分类计数有不同影响。
Their activities were recorded continuously. Result the change of spontaneous locomotor activity and leukocyte count were synchronized with the light-dark cycle.
目的探讨不同周期光暗循环对小鼠生长的影响。
Objective To investigate the effect of different light-dark cycles on the growth and activity of mice.
结果小鼠活动性周期与光暗循环周期一致，短周期光暗循环能够提高小鼠的学习记忆能力。
Result The locomotor activity rhythm was consistent with the light-dark cycle. The period of light-dark cycle shorter than 24 h such as 10 h could effect on the ability of learning and memory in mice.
结果小鼠活动性周期与光暗循环周期一致，短周期光暗循环能够提高小鼠的学习记忆能力。
Result The locomotor activity rhythm was consistent with the light-dark cycle. The period of light-dark cycle shorter than 24 h such as 10 h could effect on the ability of learning and memory in mice.
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