THE LOSS IN VARIOUS DEGREES of vision and hearing, i.e. the Deafblindness, affects the immediate knowledge of everything that happens around, since it is pretty more restricted the scope of sensory perception, and this limits the interaction with the physical, intellectual and emotional environment.
In the extreme cases, as is the total/complete Deafblindness, the world is restricted to only what they can achieve with the tip of their fingers. And it is from the tip of their fingers, where it is possible to re-grow their world again.
The adaptation and integration of the Deafblind people is based on the intensive use of all sensory resources that still remain: visual and/or hearing remnants, touch, smell, taste, but it is the sense of touch which acquires a special significance for their communication needs, knowledge acquisition and learning.
Touch is a sense that can develop and offer more benefits than what is generally believed and can also help us to gather more information. Of the five traditional senses, touch is in fact the only one without which we could not live. Imagine yourself, for example, do not holding the spoon at dinner, the chair in which you sit down, the bed where you tend or the ground beneath our feet. Touch is the sense that keeps us in constant contact with reality. While the view depends on the eyes, the hearing depends on the hearing organs, the smell on the nose and the taste on the tongue, touch, on the other hand, is extended throughout all our skin.
Through the skin, we receive sensations of pressure, heat, cold, etc. Curiously, the most sensitive part of our body is the tip of the tongue. If we do the test, you’ll find that it is even able to capture more accurately the points of the Braille system than the tip of the fingers. All we have proof that the touch is used as a way of obtaining information already from a very early age, if you remember that very young children often “explore” the objects luring them to the mouth.
After the tip of the tongue, the area of greatest sensitivity is the tip of your fingers, and this sensitivity is the greatest treasure of a person who is both blind and deaf.
The human hand is a wonderful instrument, which has been calculated that it is capable of performing 300 million positions potentially useful with only its five fingers.
Evidence of this is the large amount of manual alphabets that exist in the world, different from one country to another.
Not only communication is possible through the hand, but that is an excellent mean of obtaining information. Perhaps we can be aware of this, if we stop thinking about the countless number of things that we played for a day. Certainly, few of us remember having had contact with a particular object, but Deafblind people will develop the touch as an information center. This process involves such important elements, such as memory and mind.
On the other hand, we have the Braille system, an excellent way for access to information and culture, as blind people do. In addition, it can be in some cases, the vehicle to communicate and share information in distance.
Deafblind people never cease to discover new ways to use their hands, and through practice the concentration and mental interpretation increases, developing new muscle, nerve and brain habits, which will facilitate the ability to communicate with others and get contact with their environment.