Assertion: caffeine | /r/CapableOf | improve reaction time
Facets:
value: generally
type: DEGREE
Source sentences:
text: At normal doses, caffeine has variable effects on learning and memory, but it generally improves reaction time, wakefulness, concentration, and motor coordination.
text: Mountains of solid research have shown us that caffeine (in doses ranging between 30 and 300 milligrams) improves attention, alertness, reaction time, and mood, especially when we’re tired.
text: At normal doses, caffeine has variable effects on learning and memory, but it generally improves reaction time, wakefulness, concentration, and motor coordination.
text: Finally, caffeine improves psychomotor vigilance, such as reaction time (71–73).
text: Caffeine improves reaction time, vigilance and logical reasoning during extended periods with restricted opportunities for sleep.