Tactile marking is a common means of communication used by people with visual and hearing impairments (deafblindness) which is based on a standard system of manual signs for the deaf.
Several methods of communicating with people who are deafblind can be referred to as tactile cues, including:
* Manual transmission (also known as "hands-on signing"): The receiving hand is placed lightly behind the signer's hand to read characters by touch and gesture. The sign language used for handwriting is often a slightly modified version of the local sign language. You can find the tactile sign language services via the web.
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* Tracking: The receiver holds the signer's wrist to keep an eye on the sign and get information from the signer's movements. This is sometimes used when the receiver has a limited field of vision.
* Tactile fingerprint (deaf-mute alphabet): Each word is written with the handwritten alphabet. A variety of handwritten alphabets can be used, such as the ASL one-handed alphabet or the two-handed alphabet, which is often used in an adapted form to communicate with the deafblind.
* Co-signing: The sender moves and manipulates the hand and arm of the deaf-mute to create symbolic shapes or words with their fingers. It is often used in children who are deaf and dumb to teach them to write and in people with intellectual disabilities.
* Body Signs: The body of a deaf-blind person is used to complete sign formation with other people. For example chin, palms, chest. It is often used in people with intellectual disabilities.