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Understanding My Friend’s Hearing Loss
Brief Review of the Ear
There are 3 Parts to the Ear.Sound goes through the outer to the middle to the inner.
Outer Ear
Middle Ear
Inner Ear
(1) Sound Waves pass through the ear canal (2) Sound beats against the eardrum (3) Which causes vibrations of the three small bones in the middle ear (4) When the bones vibrate, sound waves pass through, the inner to the
cochlea. (5) Thousands of hair cells make up the auditory nerve. Movements of the
fluid bend the tiny hairs and stimulates electrical impulses, which are carried up the auditory nerve to the brain.
How your hearing works
Deep in your ear is a remarkable pea-sized structure called the cochlea. The cochlea is fully developed at birth. Tiny, delicate hair cells in the cochlea send sound signals to your brain, so you can hear different pitches and sounds. If these delicate cells are damaged, you can lose some or all of your ability to hear.
The Cochlea
Audiogram
140 dB Gunshot
130 dB Jet Take-off
120 dB Rock Concert
105 dB MP3 at max
95 dB Motorcycle
90 dB Lawn Mower
85 dB Heavy traffic
60 dB Conversation
30 dB Whisper
15 dB Rice Krispies in milk
Measuring the Loudness of Sound
Degrees of Hearing Loss• Mild 20-40dB Can hear without
amplification but will miss parts of words.
• Moderate 40-60dB Will have difficulty hearing spoken conversation
without amplification.• Mod/Severe 50-70dB Conversation must be very
loud to be heard without amplification. Aids will
help person to be aware of spoken language.
• Severe 70-90dB May hear loud sounds close to ear. With amplification
may be able to detect speech.
• Profound 90dB + Amplification may or may not be useful.
Types of Amplification
Behind the ear aid
In the ear aid
Cochlear Implant
Baha System
Multiple Parts even in brief communications.
Ideally, communication is give and take, back and forth.
Problems occur when some part of this breaks down.
The Communication Process
Message
ReceiverFeedback
Sender
Familiarity with speaker
Familiarity with topic
Level of noise in the environment
Factors Within the Receiver
Factors Within the Speaker
Use kid friendly, familiar words, phrases
Use a normal volume when talking
Use a comfortable rate of speech
Tone of voice can make understanding easier or harder(male/female, adult/child)
Length of Message
State topic and make sure student knows when topic is changed
Amount of information, chatting
Do you repeat the message?
Volume of message
Factors Within the Message
Get the person’s attention before you begin speaking
Face the person and maintain eye contact Use body language and facial expression Speak clearly Use open ended questions to see if the
person is understanding Re-phrase a sentence instead of repeating
it over and over
Communication Strategies
Thank You!