Friday, October 25, 2013

Our Sense of Hearing: Facts and Figures

Our sense of hearing is the most delicate of all senses. In terms of every imaginable parameter, the ear is superior to the eye. It is more sensitive, accurate, fast, effective and less prone to deception.


• The eye sees within a visual spectrum. The wavelength of this visual spectrum doubles from 380 nanometers to 760 nanometers. This is equivalent to one octave. The ear is capable of perceiving 10 octaves.  

• Speed: In order to distinguish two stimuli the eye needs 0.02 of a second. The ear only requires 0.003 of a second and is thus almost seven times faster.  

• Dynamics: the ear can process intensities ranging from 10-11 Hz to 116 Hz. Such intensities would blind the eye.  

• Mathematical accuracy: every human is able to recognize an octave and the sound of its 1: 2 wavelength ratio. Students of physiognomy learn that: “The ear measures, the eye estimates.” 

• Sensitivity: the highest concentration of neurons and nerve-endings is in the inner-ear. This creates the highest density of recognition and thus stimulation. Several centuries ago, this function was presumed to be in the sexual organs. The inner ear, however, surpasses these three-fold.  

• Structure: the inner ear and the cochlea is protected by the petrosal bone. This is the toughest bone structure in the human body. This is further evidence for the significance of natural hearing.  

• Energy: It has been discovered that 90% of the energy supplied to the cortex is transmitted via the ear, almost exclusively through high frequencies. As long as this supply is secured, it will lead to vitality, awareness and creativity.  

• Balance organ: We all know that the ear is responsible for our sense of balance. But this is not all. The ear is connected to every muscle of the body and helps to coordinate our movements. Our posture and movement depends on the ear.

• Development of the ear: 7-8 days after insemination a 1cm large cell-mass is recognizable. The microscopically small onset of ears is also visible. 4 ½ months into the pregnancy, the actual acoustic organ, the inner ear and the cochlea are already completely developed and have reached their full size. It is the first organ that develops completely. Without a doubt, hearing is essential to human begins. 



• What does the embryo hear?
- The mother’s voice
- The heartbeat, the primal meter
- Sounds in the abdomen (digestion etc.)
- External sounds (high frequencies are easier to heat than low ones)

In this book, written by Hans Peter Becker, you will find more interesting facts about music and the brain function.

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