Acute Caffeine Intake Does Not Modulate Active or Reactive Inhibition in Non-Clinical Young Adults, and ADHD Symptoms Do Not Moderate Its Effects

Background

Caffeine is consumed for its presumed cognitive benefits, yet controlled studies have repeatedly failed to find effects on inhibitory control. Cross-sectional work suggests that people with elevated attention-deficit/hyperactivity disorder (ADHD) symptoms may benefit from chronic, moderate caffeine consumption, but whether acute intake improves cognition in proportion to symptom severity has not been tested experimentally.