Stimulus

A stimulus is something that causes a response. It may refer to:

• Stimulation
• Stimulus (physiology), something external that influences an activity
• Stimulus (psychology), a concept in behaviorism and perception
• Stimulus (economics)
• For government spending as stimulus, see Fiscal policy
• For an increase in money designed to speed growth, see Monetary policy
• The input to an input/output system, especially in computers

• Stimulus bill (disambiguation), in economics
• Economic Stimulus Act of 2008, United States
• 2008 Chinese economic stimulus plan
• 2008 European Union stimulus plan
• American Recovery and Reinvestment Act of 2009
• Stimulus Package, an add-on for the video game Modern Warfare 2