Quote:
Quote:
Originally Posted by Rapture
Does anyone know the name of the condition some people have that they can't block out certain noises? For example; if someone in the room is tapping their pen on a desk, the person with the condition can't block it out and it sounds really loud to them. I knew the name but forgot and can't find it on the internet. Thank you!
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I can't recall the name either,
but share the same in this highly irritating disorder
this make be somewhere to start
Sensory dysfunctions
Neurological
Information Processing Disorders
What is Central Auditory Processing?
Hearing is a complex process: as sounds strike the eardrum, the sounds (acoustic signals) are changed into neural signals which are then passed from the ear through complicated neural networks to various parts of the brain for additional analysis, and ultimately, recognition or comprehension. Central Auditory Processing, then, is the ability of the brain (central nervous system) to process incoming auditory signals. The brain identifies sounds by analyzing the distinguishing physical characteristics: frequency, intensity, and temporal features that we perceive as pitch, loudness, and duration. After analyzing the physical characteristics, the brain constructs an "image" of the signal from the component parts for comparison with stored "images." If a match occurs, we can understand what is being said or recognize sounds with important meanings (sirens, doorbells, crying).
Most people think hearing problems are the ears inability to detect sound, yet not all hearing is done in the ear. In fact, the ear merely brings in and delivers environmental sounds unsupported to the brain stem above the spinal cord. As hearing nerves crisscross up several inches, the sorting out or processing begins. This processing includes:
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focusing attention away from other tasks (watching TV, taking test),
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separating out and inhibiting "non-speech-like" sounds (sending down neural messages to reduce nerve activity bringing up traffic or dishwasher noise),
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locating the voice you want to hear (focusing on teacher, ignoring other children)
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conveying speech sounds (not yet words) without distortion to the brain cortex
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organizing sounds into words
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routing information to other centers of thought, action, sight.
For this there must be enough nerve fibers to share the work and no cell loss from lack of oxygen at birth or failure of embryological development. The nerves must all transmit at normal speed, not slower in spots as when the brain is swollen. The brain must produce proper amounts of chemical neurotransmitters for the nerves to carry their messages.
Central Auditory Processing Disorders (CAD) are deficits in information processing of audible stimuli but without hearing or intelligence deficits. It is the inability to attend to, discriminate, recognize or comprehend what is heard. Auditory processing deficits interfere directly with speech and language as well as all areas of learning, especially reading and spelling. Instruction in schools relies primarily on spoken language, so students with CAD may have serious difficulty.
CAD often coexists with other disabilities, including speech and language disorders or delays, learning disabilities, dyslexia, attention deficit disorders, and social and/or emotional problems. CAD are more pronounced when listening to distorted speech, or in poor acoustic environments such as listening in the presence of competing background noise.
Hope this helps to jog your memory
God Bless You
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