Definition of hearing - What it is, Meaning and Concept

Listen is a term that refers to the sensory faculty to achieve the perception of a sound .The concept is usually associated with the verb listen , although this mentions the fact of attending to what has been heard.In colloquial language, however, both are used as synonyms.

For example: “ I could not hear what you said, could you repeat it? ", " I will not hear more reproaches: I do what I want with my life ", " After hearing the noise, the man went out into the street and found his car shattered ”.

The faculty of hearing constitutes the sense of hearing , formed by various physiological and psychological procedures that allow people to hear and capture sounds.A sound , meanwhile, is a sensation that occurs in the ear from certain vibrations.

When the sound waves pass through the air and reach the ears, a process begins in the human being that involves various bones, nerves, cells and membranes.Ultimately, the vibrations generated by sound waves become nerve impulses that are interpreted by the brain .

Suppose there is a woman sitting on the bench of a square.Behind her, a friend appears who calls her by name, without the woman seeing her.The person who is sitting achieves hear her name (since she perceives the sound in question) and, through a psychic and cognitive process, warns that they are calling her and even recognizes her friend's voice.When she turns around, she observes her friend through her sense of vision.

Ear diseases

While hearing is something that most human beings do with satisfactory results, there are various disorders that affect or cancel hearing.To hear, we need the inner, middle and outer ear to function properly.Sound waves enter through the outer ear, they reach the middle and produce vibrations in the tympanum that are transmitted to the inner one through the ossicles (very small bones); finally, the nerve impulses travel from the inner ear to the brain, where they are identified as sounds.

When any of these parts is affected, the hearing process cannot be carried out with precision.Some of the diseases and most common disorders are:

* infections : They occur especially in children, but also in a small percentage of the adult population.They usually affect the middle ear and are called otitis media .of fluid and mucus makes hearing difficult, since it prevents the passage of sound.It is very important to detect this type of infections in children who have not yet learned to speak, to avoid cognitive problems;

* tinnitus : This is a condition characterized by the perception of rumors, hissing or ringing in the ears.It is a disease that causes frequent or constant discomfort, according to the severity, and that affects many people worldwide.When tinnitus is severe, difficulties appear to perform daily tasks such as work or study, to hear normally and even to sleep;

* Meniere's disease : affects the inner ear and usually appears on only one side.It is one of the common causes of deafness and may also be accompanied by tinnitus.Among its Symptoms Severe dizziness, pain and pressure in the ear and intermittent hearing loss are found.Depending on the severity with which this disease occurs, sudden attacks may occur that cause the absolute loss of balance, with the consequent fall to the ground;

* barotrauma : is the damage that causes water or air changes (barometric) to the body.For example, a change in altitude can produce a characterized barotrauma due to the pain of hearing, something very common in air travel or in mountain routes.Among the most common symptoms of barotrauma are the difficulty of hearing, pain, dizziness and plugging of the ears.It is without place to you doubt a disorder that doesn't It has serious consequences, but it must be properly addressed.