最初的实验表明，与向前直视相比，眼部运动提升了觉醒水平。
An initial experiment showed that, relative to staring straight ahead, eye-movements increased arousal levels.
看起来视网膜中这些特化的细胞能够检测到光线，然后把光信息传送到大脑中调节睡眠和觉醒水平的区域。
It seems that these specialised cells in the retina detect light and send brightness information to those regions of the brain that regulate sleep and levels of arousal.
结果表明，双目标监测系统能够实时、准确地监测和识别驾驶员的觉醒水平，具有较高的识别容错性和准确性。
Test results show that the proposed double-objective detection system can monitor and identify accurately a driver's alert level with high fault tolerance provided.
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