This psychic mechanism exists ...

This psychic mechanism exists to ensure that the shortage of good-quality products to be able to switch to a less benign (those that are in existence), causing more irritation. The stronger the motivation of hunger, the more acceptable will be unsafe products (inversion of the perception of excessive taste stimuli) and, on the other hand, is too fresh (inversion of the negative perception of lack of stimuli). The same thing (and avoiding excessive stimuli and too weak) is observed in other examples. We are alarming not only loud sounds, noise, and silence. It happens that the tires are too close contact, but solitude is vtyagost. Here, too, the situation is lack of stimuli perceived as "fresh", and, apparently, only weak signals cause discomfort to capture earlier in its excessive form. An example from the field of visual perception. We agree that a large birthmark does look less attractive. However, a small birthmark gives the exterior a certain piquancy appeal. Complete, the lack of moles and other small blemishes, like after applying powder, makes a face unnatural maskoobraznym. That is, positive emotions is a signal of moderate strength (small mole). Strong signal and very weak signal cause negative emotions. The influence of natural factors, such as a cold rain, strong winds, blizzards, or conversely, heat, and invariably cause negative emotions (action exteroceptor). These same factors have become less force enjoyable: light breeze, warm rain, moderate snow, or when hot weather begins to subside the noonday heat, it is already perceived as the desired coolness. Deprivation of all these factors - for example, long stay in the room - uncomfortable. Example of kinestetiki, proprioception. After physical activity during leisure a state of satisfaction, a pleasant muscular relaxation. On the other hand, muscle tension after prolonged inactivity is also a source of satisfaction (eg, after sleep or prolonged sitting there is a desire to "stretch"). The effect of exercise. After heavy loads easily done that before training was performed with difficulty. Even a slight temporary relief or make the successful completion of difficult and complex work attractive and interesting. In this case, in the days of rest, a man burdened by doing nothing, look back to their work. Certain stimulus (stimulus), providing a different time, the action of different forces and causing a backlash, as it were tested for the degree of danger, "fire". Most appropriate (optimum) level at the moment the stimulating effect is most tangible positive emotion. It is known that the efficiency depends on emotional arousal (P. Friess, Piaget, 1975). It turns out that a very weak and very strong emotional excitement (with the appropriate motivation) leads to a decrease in performance.