rebound effect

n. A change in the opposite direction as a previous change in behavior or other process which occurs after a force has altered the course of behavior or other process from its usual pattern. Thus taking calcium carbonate reduces the level of acid in the stomach, an effect that is followed by an increase in acid production in the stomach, which increases acid level to above the normal level. When many organisms have a normal pattern of behavior prevented or suppressed through punishment, that pattern of behavior often shows an increase above expected levels when the situation allows or the punishment ceases.