A person who suffers from extreme anxiety related to a specific stimulus (such as a person, object, or situation) may benefit from facing that stimulus in a safe environment. What form of therapy is this?
Avery is overusing alcohol, so his psychiatrist suggests he take a medication that will induce nausea every time he drinks an alcoholic beverage. When Avery associates the drinking with stomach pains, he might decide to reduce or even completely stop using alcohol. Such a therapy is based on which of the following concepts?