Avoidance response
![The Kellet's whelk does not display an avoidance response in the presence of the sea star Pisaster giganteus.[1] The sea star is eating the bivalve Chama pellucida while three Kelletia kelletii are attempting to get to the prey.](/uploads/202412/22/Kelletia_kelletii_and_Pisaster_giganteus_25907.png)
An avoidance response is a response that prevents an aversive stimulus from occurring. It is a kind of negative reinforcement. An avoidance response is a behavior based on the concept that animals will avoid performing behaviors that result in an aversive outcome. This can involve learning through operant conditioning when it is used as a training technique. It is a reaction to undesirable sensations or feedback that leads to avoiding the behavior that is followed by this unpleasant or fear-inducing stimulus.