Incubation of Craving is cue induced craving that gets stroner overtime during abstinence. There are 2 types of abstinance : forced abstince and social based voluntary abstinance. In forced Abstinance rats are kept in their homecage, and incubation of craving increases with forced abstinence. For social based voluntary abstinence resident rats and partner rats press levers to socially interact, when compared with forced abstinence incubation of craving increases. In previous studies the Resident is the one to initiate social interaction while the partener is just there, but for our experiment the partner is the one to initiate social interaction we did this because we had a question "Is the Resident choices (social interaction or Drug) dependent on the partner's behavior. For our approach we had 5 days of mutuals social interaction, 14 days of self drug (heroin) administration, 1 test day of incubation, 14 days of voulntary abstinence, and 1 test day of incubation.
