【摘要】 本文观察了九只损毁视交叉上核(SCN)的树鼩在正常光照和颠倒光照条件下的运动性活动节律的变化。结果发现当损毁SCN后树鼩的昼夜活动节律有变化:活动高峰期有改变;活动量减少,与光照的同步能力减弱。表明SCN系树鼩近似昼夜活动节律的振荡器之一。更多还原

【Abstract】 Effects Were Studied in 9 Tree shrew after SCN Isolation on the Circadian rhythm 1、The Change of the Circadian rhythms was Occured. The locomotor quantity decreased in the light period and increased in the dark period. 2、The Change in locomotor peak period Was Occured. The peak period at the beginning had disappered. 3、After the SCN Was Isolation on eight Tree shrew. The locomotor quantity average reduced 84.7% Comparing with the normal. 4、When the light-dark was reversed The locomotor rhythms desynchronized with the light after SCN Isolation The results indicate That SCN is one of the circadian rhythms pacemakers of the Tree Shrew更多还原