Habituation and sensitization are two forms of learning that involve a change in the intensity of a response to a stimulus.

Habituation can be defined simply as a reduction in behavioral response during repeated presentations of the same stimulus. It is a form of learning that is observed in invertebrates and in all vertebrate species including humans.



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Sources and Resources

• Habituation and Prepulse Inhibition of Acoustic Startle in Rodents
  If you hear a loud noise you are startled. If you hear that noise again within the present, you will, again, be startled, but not as much. Again, and you will be startled even less. This is habituation. Now, researchers are beginning to explore the molecular mechanisms underlying it. In this case, for habituating sounds.