Conditioned response

Unconditioned responses happen automatically through hormones, for example salivation at the sight of food. Conditioned response involves creating a new behavioral pattern by associating an unrelated stimulus with a natural reaction. As an example of conditioned response, Pavlov trained dogs to salivate in response to the ringing of a bell.
 Ivan Pavlov Russia 1907 Conditioned response

Unconditioned responses happen automatically through hormones, for example salivation at the sight of food. Conditioned response involves creating a new behavioral pattern by associating an unrelated stimulus with a natural reaction. As an example of conditioned response, Pavlov trained dogs to salivate in response to the ringing of a bell.