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Protactile is a language used by deafblind people using tactile channels. Unlike other sign languages, which are heavily reliant on visual information, protactile is oriented towards touch and is practiced on the body.
As the decades progressed, deafblind people began to form communities where tactile language were born. Just as deaf people brought together in communities first used invented forms of spoken language and then created their own natural languages which suited the lives of deaf-sighted people (i.e. visual languages), so too, deafblind people in communities first used modified forms of visual ...
For example, someone who grew up deaf and experienced vision loss later in life is likely to use a sign language (in a visually modified or tactile form). Others who grew up blind and later became deaf are more likely to use a tactile mode of spoken/written language. Methods of communication include:
Tactile defensiveness: negative reaction to tactile stimuli; Visual perceptual deficits: poor form and space perception and visual motor functions; Somatodyspraxia: poor motor planning (related to poor information coming from the tactile and proprioceptive systems) Auditory-language problems
It is sometimes referred to as tactile lipreading, as the listener feels the movement of the lips, the vibrations of the vocal cords, expansion of the cheeks and the warm air produced by nasal phonemes such as 'N' and 'M'. [3] Hand positioning can vary, and it is a sometimes also used by hard-of-hearing people to supplement their remaining hearing.
TACPAC (derived from "tactile approach to communication package") [1] is a sensory communication resource using touch and music to develop communication skills.It helps those who have sensory impairment or communication difficulties.
Nonetheless, there is a difference in these various areas within the brain when comparing the blind to the sighted, which is that shape discrimination causes a difference in brain activity, as well as tactile gnosis. The visual cortices of blind individuals are active during various vision related tasks including tactile discrimination, and the ...
In blind persons, it is seen that while they are only receiving tactile information, their visual cortex is also activated as they perceive sight objects. [9] Touch-to-touch sensory substitution is also possible, wherein information from touch receptors of one region of the body can be used to perceive touch in another region.
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