Criteria for Stimulus Preexposure Effects

1. The behavioral modification depends on a form of neural plasticity.

2. The modification depends on the organism's experiential history.

3. (a) The modification outlasts (extends beyond) the environmental contingencies used to induce it. (b) The experience has a lasting effect on performance.

4. Exposure to a stimulus alters the response elicited by the target event, causing a decrement (habituation) or an enhancement (sensitization) in its behavioral and/or psychological consequence