There is a theory that states that the principal reason that motivates people to make an action is to keep an optimal level of physiological arousal. This optimal level of arousal is different according to the person, as well as it is a very important aspect related to attention and information process.
Thus, maintain the optimal level of arousal is very important concerning the performance that a person can have in a specific task. Research has demonstrated that the psychological factor that is in charge of arousal of motivation is also related to the performance.
