The psychomotor vigilance task (https://en.wikipedia.org/wiki/Psychomotor_vigilance_task https://en.wikipedia.org/wiki/Psychomotor_vigilance_task) is the gold s

The psychomotor vigilance task (https://en.wikipedia.org/wiki/Psychomotor_vigilance_task https://en.wikipedia.org/wiki/Psychomotor_vigilance_task) is the gold standard for alertness testing. It's practical for the police to administer it during a traffic stop.