" It is worth recalling here that the injudicious use of rewards and praise can be pressure tactics no less than verbal or physical coercion. As we have seen, there are three dangers with motivating by means of reward and praise. First, they feed the anxiety that not the person but the desired achievement is what is valued by the parent. They directly reinforce the insecurity of the ADD child. Second, since children can sense the parents’ will pushing them, even if under benign disguises such as gifts or warm words, counterwill will be strengthened. Third, praise and reward will themselves become the goal, at the expense of the child’s interest in the actual process of what he is doing. Children thus motivated will sooner or later learn to get by with the least amount of effort necessary to earn the praise or the reward. Short cuts and cheating often follow. Accepting "

― Gabor Maté , Scattered Minds: The Origins and Healing of Attention Deficit Disorder