When light stimulus was weaker and concentrated on central vision, there was no significant difference between a red light and a green light in the aspect of dark adaptation.

光刺激作用主要集中在视网膜中央窝的条件下，等亮度较弱的红光与绿光之间暗适应时间无显著差异。

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Here we demonstrate by in vivo time-lapse imaging of optic tectal cells in Xenopus laevis tadpoles that enhanced visual activity driven by a light stimulus promotes dendritic arbor growth.

在此，我们使用视觉非洲爪蟾蝌蚪顶盖细胞活体延时成像证明，轻微刺激下增强的视觉活动促进树突棘生长。

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The researchers also tested the flies' saliva for enzymes that signal sleepiness and measured the flies' ability to associate a light with an unpleasant stimulus.

研究人员还检测了果蝇唾液中显示困倦程度的酶，还测试了果蝇将光亮与令人不快的刺激联系起来的能力。

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Market participants are waiting to see if he will conduct another stimulus program in light of slowing economic growth.

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Going forward, we believe that growth in the Chinese auto market will remain bumpy until the government renews its stimulus program in light of worrying global economic environment after reigning in inflation.

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Researchers said that result doesn't rule out the possibility that short-wavelength light also could be an alerting stimulus in the afternoon.

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