How to Train a Brain: Crash Course Psychology #11

What did Ivan Pavlov initially study before his famous experiments on classical conditioning?

• Quantum physics

• Human psychology

• The behavior of rats

• The digestive system of dogs

What triggers the unconditioned response in Pavlov's experiment?

• The sound of a bell

• A touch on the leg

• The smell of food

• A flashing light

Who is known for the concept of operant conditioning?

• Sigmund Freud

• John B. Watson

• Ivan Pavlov

• B.F. Skinner

What does negative reinforcement do?

• Increases a behavior by removing an unpleasant stimulus

• Decreases a behavior by adding an unpleasant stimulus

• Increases a behavior by adding a pleasant stimulus

• Decreases a behavior by removing a pleasant stimulus

Which of the following is an example of a conditioned reinforcer?

• A cookie

• A paycheck

• A loud noise

• A flashing light