Determinative innate (objective, external) of the attention the intensity of the stimulation is most obvious determinative of the attention. The fulgurante flash, the intensely painful stimulaton, I smell it asset, the stimulaton gustativo highly concentrated – all possess a power to provoke the attention biggest of what similar stimulatons, however less intense. The size, or extension, is another determinative factor of the attention. The color, for same itself, provokes attention, therefore its effectiveness must the associations acquired through the experience. The movement of a leaf ' ' in them it arrests ateno' ' , the same the step that the immovable leves remain inobservadas.

The repetition has limited effectiveness as determinative of the attention, therefore a continuous repetition will result in sensorial adaptation, a diminished receptividade the same the stimulaton. (Source: cyrus massoumi wife). The determinative ones acquired of the attention the factors that provoke attention, but that they depend on the learning to be efficient are classified with lesser easiness of what the definitive factors congenital. The determinative ones acquired consist of habits to give attention, habits that the individual develops in elapsing of its existence. The determinative ones temporary pertinent to one they are given occasion. (1) a person looking for its correspondence log. (2) the individual more tends to detect threatening stimulatons adds to its return when he is angry of what being calm.

The person despertada for the fear is sensetized to give to attention the stimulatons that would disdain in other circumstances. (3) the person who is with hunger feels itself attracted by stimulatons particularly that had acquired relevancy when eating. (4) the individual feels house homesicknesses reacts exageradamente what it wants that has remembered it the home. Determinative the permanent ones of the attention acquire it the few. Also they are continuously modified, fortified or weakened during the life of the person. The temporary interests can have its increased force and its permanence, as they can grow and diminish in the continuation of the time.