Week_7_-_deafness

Week_7_-_deafness - Deafness: Novel treatment approaches...

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Click to edit Master subtitle style 6/13/11 Deafness: Novel treatment Psychology 115, Spring 2011 Week 7
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6/13/11 Deafness Damage to any point along the auditory pathway can lead to auditory processing
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6/13/11 Deafness Can be classified into three types: Conduction Sensorineural Central
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6/13/11 Conduction deafness Damage to the outer or middle ear prevents auditory signals from making to the cochlea. E.g., ossicles can fuse and fail to vibrate the
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6/13/11 Sensorineural deafness Caused by damage of auditory receptor cells (hair cells) or auditory nerve (cranial nerve VIII). Olfactory receptors can be regenerated, but cochlear hair cells cannot (special case discussed later). Loud sounds can damage hair cells – stereocilia are shattered Also can cause tinnitus (perpetual
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6/13/11 Central deafness Hearing loss caused by brain lesion Word deafness - ability to hear normally but cannot understand words Caused by damage to cortex (specifically
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Week_7_-_deafness - Deafness: Novel treatment approaches...

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