1. A computerized training program to systematically drive neurological changes to treat an addiction, wherein a plurality of addiction-related stimuli stimulate craving for the object of the addiction, the training program comprising: a computerized reverse conditioning game configured to: present a plurality of target and distractor stimuli, wherein a subset of the distractor stimuli are addiction-related stimuli; prompt a game participant to respond to the target stimuli and ignore the distractor stimuli; receive the game participant's input through a game piece; provide an indication to the game participant of whether the game participant's input was accurate or apt; provide a signal indicative of the game participant's performance or game difficulty; and repeat the presenting through providing a signal steps over multiple repetitions while adapting one or more difficulty parameters to target maintenance of a success rate within a predetermined range; and a computerized game manager configured to administer the game, manipulate the target and distractor stimuli, and receive input from a game piece; wherein the addiction is an over-eating disorder, and the distractor stimuli comprise images of food.