vigilance

n.

警觉；警惕；警戒；失眠症

1. In spite of vigilance a polar bear escaped from the zoo.
   尽管警戒很严，北极熊还是逃出了动物园。
2. Police's vigilance was eventually rewarded.
   警方时时警戒终有所获。
3. We must maintain keen vigilance at all times.
   任何时候我们都要保持高度的警惕。
4. You cannot afford to relax your vigilance for a moment.
   警惕性是万万不可放松的。

The amygdala: vigilance and emotion.
Vigilance requires hard mental work and is stressful.
Why individual vigilance declines as group size increases
Real-time system for monitoring driver vigilance
Fear, Vigilance, and Ambiguity: Initial Neuroimaging Studies of the Human Amygdala
Automatic Vigilance: The Attention-Grabbing Power of Negative Social Information
Postmarketing surveillance--lack of vigilance, lack of trust
Davis M, Whalen PJ. The amygdala: vigilance and emotion. Mol Psychiatr 6: 13-34
Real-Time Eye, Gaze, and Face Pose Tracking for Monitoring Driver Vigilance
Selective attention to threat in the dot probe paradigm: differentiating vigilance and difficulty to disengage.