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Protactile: Sharing some qualities with hand-over-hand signing, protactile involves the use of signs on the hands, wrist, elbow, arm, upper back, and when in a seated position, knees and the top of the thigh. Invented by deafblind people, protactile communicates not just words but also information about emotions and the environment.
Unlike other sign languages, which are heavily reliant on visual information, protactile is oriented towards touch and is practiced on the body. Protactile communication originated out of communications by DeafBlind people in Seattle in 2007 and incorporates signs from American Sign Language. Protactile is an emerging system of communication in ...
Braille is read by people who are blind, deafblind or who have low vision, and by both those born with a visual impairment and those who experience sight loss later in life. Braille may also be used by print impaired people, who although may be fully sighted, due to a physical disability are unable to read print. [39]
This is a variation on the above alphabet, modified for tactile use by those communicating with people who are deafblind. The sender holds the wrist of the receiver. The receiver's hand is relaxed, with the palm open and fingers slightly apart. The signer uses their dominant hand like a pen to sign on the non-dominant hand of the receiver.
Either the left or right hand can be dominant. In a modified tactile form used by deafblind people the signer's hand acts as the dominant hand and the receiver's hand becomes the subordinate hand. Some signs, such as the sign commonly used for the letter C, may be one-handed.
Hand positioning can vary, and it is a sometimes also used by hard-of-hearing people to supplement their remaining hearing. [ citation needed ] In some cases, especially if the speaker knows sign language , the deafblind listener may use the Tadoma method with one hand on the speaker's face, and their other hand on the speaker’s signing hand ...
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It was designed as a TTY for deaf-blind people and is also useful for face-to-face conversation. It has two components: The sighted component is a modified SuperCom TTY device. It has a qwerty keyboard and a single-line LED display. The display is regular size and is not particularly suited to people with low vision.