Health Sciences 2000A/B Lecture Notes - Lecture 2: Disabilities Affecting Intellectual Abilities, Incus, Auditory Processing Disorder

• School: Western University
• Department: Health Sciences
• Course: Health Sciences 2000A/B
• Professor: Leichelle Little

Document Summary

Types of hearing loss: vary based on onset, congenital hl occurs at birth. Prevalence: 1. 1 per 1000 live births: progressive hl progresses over time. Conductive vs. sensorineural: difference between conductive and sensorineural is where the issue arises, prior to the cochlea where conductive hl occurs (incus, malleus, ear canal) anywhere from the pinna to the stapes. If hearing loss is the only clinical feature, it is considered non- syndromic hl: example: alport. Syndrome some symptoms include: abnormal urine color, ankle, feet, and leg swelling, decreased or loss of vision, loss of hearing. Central auditory processing disorder: normal hearing thresholds, difficulty processing sound challenge in surroundings with noise, affects approximately 5% of school-aged children, hearing loss vs. Impairment can sense it normally, but impaired in processing sound. In the cochlea, air conduction of the sound are translated based on the fluids: when sound comes in, it travels and vibrates off the eardrum, distinct region of cochlea vibrates based on the sound.