Hearing / Listening:
If hearing is due to a physical sound, an ear to capture it , a nervous system to receive it, listening is an active process.
Aims:
Solicited by several sounds, the ear can choose that which it wants to recieve. In a sound mass, one can privilege or not the listening to a sound.
The posture of listening:
That supposes unconscious preferences and repulsions for a particular sound or sound sequence. It is what is called our posture of listening, a reflection of our sonic history.
Indeed, listening is a primitave experience: before seeing and even being born one is surrounded, penetrated by sounds.

The ear has functions of balance, of space-time organization, analyses of the sounds, dynamization of the brain.
It intégrates all sensory information that the body perceives.
The brain "is nourished" by this sensory entry, 90% of which comes from the inner ear.
If the ear does not function correctly, the brain cannot send the suitable instructions to the body.
The voice can produce only what the ear perceives.
The ear is the first body of the foetus to be developed.

Laterality:
The right ear is a director. It is that which is able to ensure auditive and retro-vocal control.
For example, if you prevent a musician from hearing on the right. He becomes unable to follow the tempo; under the same conditions, the voice of the singer thickens, tarnishes, loses its accuracy.
It even arrives that the subject begins to stammer !