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Central Auditory Processing Disorder (CAPD)
By Randi Fredricks
Central Auditory Processing Disorder (CAPD)is a physical hearing impairment that doesn't show up as a hearing
loss on hearing tests (like an audiogram). Instead, it affects the hearing system beyond the ear in the brain. The brains
job with regards to sound is to take sound provided by the ear and separate a meaningful message from non-essential
background sound and deliver that information with good clarity to the intellectual centers of the brain,
the central nervous system. When we receive distorted or incomplete auditory messages due to problems with
the ear and the brain, we lose one of our most vital links with the world and communication becomes difficult.
What does Central Auditory Processing Disorder look like?
The easiest, most efficient way to communicate is to say something and then listen to the other person's reply.
Howwver, this simple process becomes more difficult when your listener has Central Auditory Processing Disorder. Your sentence might come through with
certain words drowned out by other noises, or with some words sounding like different words, or as meaningless strings of
senseless verbiage. You might begin to suspect there is a problem when the person doesn't respond the way you expected.
Some of the ways a person with Central Auditory Processing Disorder might respond to you are as follows:
- The other person's expression doesn't register understanding.
- He or she answers the wrong question - maybe one you posed earlier, or not at all.
- He or she asks you for additional information which most people would have been able to infer from what you just said.
Since most of us aren't familiar with Central Auditory Processing Disorders, we probably would just think that the listener is not very intelligent,
doesn't care about what we're saying, or is simply inattentive or "spaced out". Adults with Central Auditory Processing Disorders, which often
accompany a learning disability (LD), have been embarrassed by situations and reactions like these all their lives.
These short circuits in the wiring of the brain sometimes run in families or as a result from a difficult birth, like other
learning disabilities and disorders. In some cases the disorder is acquired from a head injury or severe illness, such as
frequent ear infections. Often the exact cause is not known. Children and adults whose auditory problems have not been
recognized nor treated are forced to invent their own solutions. Frequently, this involves some form of self-medication.
The resulting behaviors can mask the real problem and complicate school, work, and close relationships, where good
communication skills are vital. If the person chooses to self-medicate, the downward spiral begins. The longer the
person uses, the more difficult it becomes to tell where the disability or disorder begins and where the addiction leaves
off. This is partially due to the fact that the addiction masks the symptoms, but also because of the often elaborate
compensatory skills used to cope, as well as the development of other disorders associated with being an addict.
It takes specialized testing to identify a Central Auditory Processing Disorder. Some of the tests used only give an indication that a Central Auditory Processing Disorder might be
present. These include tests of auditory memory for sentences, nonsense syllables, or numbers backward, sequencing,
tonal pattern recognition or sound blending, and store of general information which is most often acquired through
listening. The most accurate way to sort out Central Auditory Processing Disorders from other problems that mimic them is through clinical audiologic
tests of central nervous system function. These tests are better for locating the site of the problem and reducing the
effects of language sophistication on the test results.
If you have a Central Auditory Processing Disorder, there are many ways professionals can help you streamline your coping abilities.
Also, there may be conditions accompanying the Central Auditory Processing Disorder which are medically treatable such as allergies, Attention Deficit
Disorder, Attention Deficit Hyperactivity Disorder, or nutritional deficiencies.
The list below is common features of Central Auditory Processing Disorder:
- Hears better when watching the speaker.
- Problems with rapid speech.
- Interprets words too literally.
- Talks or likes the television louder than normal.
- Often needs remarks repeated.
- Unusually sensitive to sounds.
- Asks many extra informational questions.
- Confuses similar-sounding words.
- Difficulty sounding out words.
- Ignores people, especially if engrossed.
- Difficulty following directions in a series.
- Speech developed unclearly.
- Late speech development.
- Poor communicator.
- Memorizes poorly.
You need to know how to identify the problem so that you can explain it to
others and ask for what you need. If you grew up at a time or place where your Central Auditory Processing Disorder wasn't recognized you might need a
knowledgeable professional to give you some insight into this. But if you listen to your feelings rather than trying
to talk yourself out of them, you can generally get a good sense of the help you would like. Thus, if noisy people and
places "bug" you, or if your most satisfying school memories were of projects you built or field trips you went on,
you don't need anyone to tell you you'd work best in a quiet place, or that you're a hands-on or experiential learner.
Central Auditory Processing Disorder is a physical disorder under the protection of the ADA (Americans with Disabilities Act). But put yourself in the
other person's place: how can your supervisor or spouse possibly know whether you made a mistake because of impaired
hearing, lack of interest, or sheer ignorance? What can you tell those those at work or home to
help the situation? Here are some ideas.
- Do you have trouble hearing clearly when it's noisy?
This can be a failure of one or more of the automatic noise-suppression systems of the brain. It is reasonable to
ask for a desk away from the computers or for a sound-absorbent partition. It is both polite and efficient to say,
"I'm interested in what you're saying. Let's move away from this noise so I can hear you better." In addition, a
mild-gain amplifier can help you hear accurately on the phone over the noise of a busy office.
- Do you sometimes make silly mistakes or careless errors?
Intrusions of random sounds which normal-hearing people can ignore may break your concentration so that you
lose your place and skip a task (like carrying a number or writing a small word in the sentence). Take the work
to a quieter place if necessary. Earplugs (sometimes in only one ear which suppresses noise less well) are a
possible emergency solution. You can also have someone else proofread your work, which is actually a good idea even for
people withour Central Auditory Processing Disorder.
- Do you miss important sounds or signals that others hear easily?
Poor noise suppression and sound localization skills can cause important voices or signals to disappear in
the general background. It will save others time if they know to tap you on the shoulder before they launch into
their conversation. Telephone bells and alarms can be adjusted for volume or pitch, or a visual or tactile signal
can be added.
- Do you get important messages wrong?
Sound distortion, sequencing, auditory-visual transfer, and/or short term memory problems may be contributors.
You can ask for the information in writing, double-check later with someone else who was present, or let the
speaker know that she's going too fast. Even normal listeners often ask the person to repeat back infromation,
"Let me read that back to you," or "That's '2932284'?"
- Do you forget instructions?
Inefficient short term auditory and rote memory (or habituation) may figure in this. Get in the habit of
taking notes, set up a logbook for longer-term assignments, and ask that the information be put in a memo. You
might even carry a small tape recorder or dictaphone in some situations. If you often forget to go back to
it later, put the memo or recorder where you must see it, as by your purse or underneath something you use
every day.
- Do you only get parts of more complex directions or lengthy explanations?
Here you may begin to suspect a problem with the subtleties of language, difficulty forming rapid word pictures
to help with concept formation and memory, or failure to consider alternative word definitions so that meaning
is mis-perceived. You can "freeze" it for later analysis by writing or taping. You can say "I learn better if I
do it myself while you watch." Have someone else help you fill in details later.
- Do you have difficulty knowing what to say when, and are puzzled by others' reactions to you?
One possibility is an inefficiency in the part of the brain which registers tonality (expression in the voice)
and gives us "quick fix" on the situation (sometimes referred to with rough accuracy as a "right hemisphere disorder").
A professional can help you learn other cues by which to access how people are feeling about what you said and how
to change what you say accordingly, much as anyone would have to learn about a foreign culture. In the meantime you
might explain the problem to people you trust so their feelings aren't hurt.
If you inherited parts of your Central Auditory Processing Disorder or other learning disability from from your parents, they may
have raised you with some of the harmful "scripts" that were part of the parenting they received in a generation where
professionals and parents knew nothing about Central Auditory Processing Disorders. Chances are your teachers or other professionals as you grew up
were not well-informed about Central Auditory Processing Disorders. You may have been told "You'd do fine if you just apply yourself," or "You'll
never amount to anything," or even worse. If so, you know that those comments were not true or helpful. Work to rid
yourself of those inaccurate parts of your self-image, forgive your parents and others for their lack of knowledge, and
begin to heal yourself. Remember that for you to have evolved to the point where you are educated and employable, you
must have some positive attributes and special talents. These strengths are there to help you through
the rough spots so work to identify them, either on your own or with the help of a good professional.
Randi Fredricks
has a Doctorate in Naturopathy and a Masters in Psychology. She runs her own natural health business,
All Things Well,
and counsels clients at her office in San Jose, California. You can reach her at 800-957-5655 or
contact her online. This article may be taken partially or in whole from Randi Fredricks' book
Healing & Wholeness: Complementary and Alternative Therapies for
Mental Health. Copyright © 2008. All rights reserved.
No part of this article may be reproduced in any form or by any electronic or mechanical means, including information storage and retrieval systems.
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Randi Fredricks ::: 1723 Hamilton Ave Suite D, San Jose, California, 95125 ::: 408-315-0645
Contact Randi Online
This site does not provide medical advice, diagnosis, or treatment. Randi Fredricks is a Marriage Family Therapist Intern IMF 56610 supervised
by Mary Crocker Cook MFC 24835. Randi Fredricks is not licensed with the
California Bureau of Naturopathic Medicine. © 2001-2008 Randi Fredricks All rights reserved.
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