Sensory Processing Disorders And The Central Nervous System

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Auditory Processing Disorders, also known as Central Processing Disorders, are difficulties in the processing of auditory information in the central nervous system. The definition for an Auditory Processing Disorder is frequently changing and evolving. According to ASHA standards in 2005, a “central processing disorder refers to difficulties in the perceptual processing of auditory information in the central nervous system and the neurobiological activity that underlies the processing and gives rise to the electrophysiological auditory potentials (ASHA 2005).” Recent evidence has declared auditory processing disorders to be a legitimate clinical disorder resulting from confirmation of the link between well-defined lesions of the central nervous system and deficits on behavioral and electrophysiological central auditory measures (Musiek, F. Journal of American Academy of Audiology). An individual is likely to perform normally in tests including clicks and tones, rather than speech. There is a significant difference between the receptors for audition and speech processing. It is imperative that these disorders are diagnosed and treated early in a child’s development to eliminate developmental negative consequences. The physiology of hearing starts with a vibration that occurs in the air which sends an acoustic signal to the ear drum. The signal is transduced into a mechanical signal that transmits through the inner ear and the cochlear nerve. Finally, the signal is

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