Pavlovian Conditioning

Classical conditioning is learning by association: a neutral signal (a bell) is repeatedly paired with an event that naturally triggers a response (food), until the signal alone starts to evoke an expectation of that event. This page demonstrates that expectancy shift with a short simulated pairing phase and a single test tone; it is an educational illustration, not a measurement of your conditioning.

The key elements are: Unconditioned Stimulus (US) - naturally triggers a response; Unconditioned Response (UR) - natural response to US; Conditioned Stimulus (CS) - previously neutral stimulus that becomes associated with US; Conditioned Response (CR) - learned response to CS.

Ivan Pavlov discovered that dogs would salivate not only when food was presented, but also when they heard the footsteps of the lab assistant who fed them. This led to his famous experiments pairing a bell with food, demonstrating that neutral stimuli could become associated with reflexive responses.

Classical conditioning explains phobias, taste aversions, emotional responses to music or places, advertising effectiveness, and many therapeutic techniques like systematic desensitization for treating anxiety disorders.