The instance given above is an example of AN INTRINSIC REWARD.
There are two types of reward, intrinsic and extrinsic reward. An intrinsic reward is a type of reward which is personally gained when one achieves a personally set goal. An intrinsic reward is personal to the person who is engaged in a particular activity. For instance, in the scenario given above, the intrinsic reward is the satisfaction and the fulfillment which Casey feels. An extrinsic reward is a type of reward that is given to one by an higher authority as a result of good performance.
