At Pristine Hearing, our test battery includes those that measure deficits that have been proven to relate to listening difficulties and/or poor academic performance. Some clinics offering CAPD assessment offer exhaustive test batteries which can lead to unreliable results as children become fatigued. However, not all these tests have been found to be related to listening difficulty or academic performance and the results can be affected by other problems. Many different types of disorders fall within the ambit of Central Auditory Processing Disorder (CAPD) and therefore CAPD testing can include many different tests. Noise and reverberation in a classroom is like creating distortion on top of distortion for this child and it is no wonder they will exhibit behaviour resembling someone with a hearing loss. However, when faced with the difficult task of extracting important auditory information from their teacher in a noisy (and usually echoey) classroom, a child with Auditory Processing Disorder will struggle. In a quieter environment (like at home), this disorder isn't as obvious. While the auditory signal has no problems arriving at the brain, the neural processes involved in making sense of this information are distorted. Auditory Processing Disorder otherwise known as Central Auditory Processing Disorder affects about 2-3% of children who have normal peripheral hearing and is due to a breakdown in the hearing process usually within the auditory cortex of the brain.
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