Meaning : The process of paying close and continuous attention.
Example :
Wakefulness, watchfulness, and bellicosity make a good hunter.
Vigilance is especially susceptible to fatigue.
Synonyms : vigilance, wakefulness, watchfulness
Meaning : A state of readiness to respond.
Example :
Alerting was indicated by the desynchronization of the EEG.
Synonyms : alerting
Meaning : Lively attentiveness.
Synonyms : on the qui vive, sharp-sightedness