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Hearing
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APD
APD is a disorder called auditory processing disorder, which is a symptom of not being able to understand what the other person is saying even though there is no hearing problem.
It is not a well-known disorder, but many people suffer from it.
This section introduces APD in detail.
Tinnitus
With tinnitus, only you can hear a high pitched sound like a keening or a low pitched sound like a gurgling.
This sound is heard only by you and is not recognized by those around you.
Simply put, tinnitus is a virtual sound created by the brain.
Here are some details about tinnitus.
Aphasia
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MUSIC
Sign language
Sign language is often thought of as a gesture.
In reality, however, sign language is not a gesture, but a language in its own right. Therefore, it has its own grammar.
Let us explain in detail about this kind of sign language.