Assistive devices for hearing impairment

Assistive devices for hearing impairment

1. Assistive Devices for Hearing Impairment Muhammad Faizan

2. Objectives of this topic After the session students must be able to know about Definition of hearing impairment. What is total communication. What is cued speech. What are assistive learning devices. What is oral and aural approach.

3. Hearing Impairment An impairment in hearing, whether permanent or fluctuating, that adversely affects a child’s educational performance but is not included under the definition of ‘deafness’ [IDEA]

4. Total Communication Total Communication (TC) is philosophy of educating children with hearing loss that incorporates all means of communication; formal signs, natural gestures, fingerspelling, body language, listening, lipreading and speech.

5. Total communication starts in 1967 Originally developed by David Denton at the Maryland School for the Deaf Total communication is the combination of oralism , manualism , auditory training and visual aids. Total Communication welcomes all methods in one classroom Total communication refers to an educational phiolosphy as well as to a mode of communication History of T otal Communication

6. Characteristics of total communication Fundamental to this approach is the recognition that children have different styles of learning Provide alternate mode to choose from Helps to ensure that each child will find ways to meet his or her own communication needs Total communication is used to bridge the gap between strict oralism and strict manualism

7. Cued Speech Cued Speech is a visual mode of communication that uses handshapes and placements in combination with the mouth movements of speech to make the phonemes of a spoken language look different from each other . [National Cude Speech Association]

8. Cued speech is composed of three elements Shape of the hand Indicate the consonant group Location or position of the hands Indicate the vowel group M outh shapes Show which vowel or consonant sound within each group is said

9. Mouth= ea (flat mouth) Chin= o (round mouth ), e (flat mouth), Throat= u ( round mouth ), I (flat mouth), a (open mouth) Side= o as in love (flat mouth), o as in mom (open mouth) Mouth shapes

10. Benefits of C ued S peech Once every sound is made visible deaf children can gain an understanding of spoken language Lip reading becomes accurate Helps listening—research has shown that deaf children familiar with cued speech use their residual hearing to greater effect (B.L. Charlier & D.palissen,1986)

11. Basic principles of cued speech Every sound in the language must look different either in the hand or in the moth When sound looks alike on the lips they are cued differently example meat, beat

12. Assistive devices For H.I.C The terms  assistive device  or  assistive technology  can refer to any device that helps a person with hearing loss or a voice, speech, or language disorder to communicate. These terms often refer to devices that help a person to hear and understand what is being said more clearly or to express thoughts more easily.

13. T ypes of assistive devices Assistive listening devices (ALDs)  help amplify the sounds you want to hear, especially where there’s a lot of background noise . Augmentative and alternative communication (AAC) devices  help people with communication disorders to express themselves. Alerting devices  connect to a doorbell, telephone, or alarm that emits a loud sound or blinking light to let someone with hearing loss know that an event is taking place.

14. FM system Use radio signals to transmit sound They are often used in classroom where the instructor wears a small microphone connected to a transmitter and the students wears the reciever . Assistive listening devices (ALDs)

15. Hearing loop system Hearing loop (or induction loop) systems  use electromagnetic energy to transmit sound. A hearing loop system involves four parts: A sound source, such as a public address system, microphone, or home TV or telephone An amplifier A thin loop of wire that encircles a room or branches out beneath carpeting A receiver worn in the ears or as a headset

16. The simplest AAC device is a picture board or touch screen that uses pictures or symbols of typical items and activities that make up a person’s daily life . Speech-generating devices go one step further by translating words or pictures into speech . For many years, people with hearing loss have used text telephone or telecommunications devices, called TTY or TDD machines, to communicate by phone. Augmentative and alternative communication (AAC) devices

17. Alerting devices Alerting or alarm devices use sound, light, vibrations, or a combination of these techniques to let someone know when a particular event is occurring . When the phone rings, the visual alert signaler will be activated and will vibrate or flash a light to let people know.

18. ORAL APPROCH “ An approach that teaches a child to use his/her residual hearing through amplification and the use of speechreading /natural gesture/ visual cues to aid the child’s understanding of language. ’’ The use of any form of sign language communication is not encourged .

19. GOALS OF ORAL APPROACH There are some primary goals of oral approach: To develop spoken language through listening and visual cues To develop spoken language and communication skills necessary for school success and integration into the hearing community . The ultimate goal is to be able to respond quickly and accurately.

20. METHODS FOR DEVELOPING SPOKEN LANGUAGE To help develop spoken language, different methods can be used: An auditory-oral approach An auditory-verbal therapy

21. AURAL APPROACH The Aural Approach focuses on developing listening and speaking with the effective use of  hearing technology , to make the most of a child’s residual hearing. 

22. HOW DOES AURAL APPROACH WORK? Uses hearing and listening to develop communication skills. Relies on the use of amplification including  hearing aids and implants  and other technology that supports their use. Doesn’t use sign language. Discourages children from relying on  lip-reading  (although the use of natural gestures and facial expressions is encouraged)

23. Thankyou