Central auditory system

The central auditory system is responsible for the perception of the captured sound. It is made up of various brain structures:

1. The 30,000 neurons that make up auditory nerves and are responsible for transmitting electrical impulses to the brain for processing.
2. The sectors of our brain dedicated to hearing.

The human auditory system can be divided into two stages: sound capture, which is handled by the peripheral auditory system, and perception, which is handled by the central auditory system.

Physiology

Through the acoustic nerves, the brain receives patterns that contain the characteristic information of each sound and compares them with others stored in memory (past experience) to be able to identify them.

Although the information received does not correspond to the information that the memory has stored, the brain will still try to adapt it to some pattern that is known to it, which it considers most similar.
If it is impossible for the brain to find any pattern that resembles the information received, it has two options: it discards it or stores it. If you store it, you convert it into a new pattern that can be compared.

The brain processes information based on three steps

1. On a first level, the brain identifies the place of origin of sound (their location), for this it takes into account human binary listening, that is, the fact that man receives two simultaneous and different signals of the same sound.
2. On a second level, the brain identifies the sound itself, that is, its shy features.
3. On a third level, the temporary properties of sounds would be determined. Its relevance depending on the sounds that happen or precede it (Haas effect, sound masking and other psychoacoustic processes that affect the way the sound is perceived).

The auditory system is damaged by outside noises.