![What is an audiogram?](http://s1.studyres.com/store/data/007972082_1-22fcf2934f2faed92cfee7221fa9ca23-300x300.png)
What is an audiogram?
... Really loud rock concerts can measure 110 to 120 dB HL. Many people find sounds over 100 dB HL unpleasantly loud. ...
... Really loud rock concerts can measure 110 to 120 dB HL. Many people find sounds over 100 dB HL unpleasantly loud. ...
View PDF
... to the right, this has been attributed to the left cerebral dominance becoming manifest due to the degenerative changes affecting the auditory pathway. The loss of cochlear neurons is the most consistent pathologic change seen in these patients. It has been calculated that loss of cochlear neurons o ...
... to the right, this has been attributed to the left cerebral dominance becoming manifest due to the degenerative changes affecting the auditory pathway. The loss of cochlear neurons is the most consistent pathologic change seen in these patients. It has been calculated that loss of cochlear neurons o ...
reading an audiogram and explaining it to a child or adult
... Categories of degree of hearing loss are shown on the audiology resource sheet “Audiograms – An Explanation”. The pure tone average is usually calculated from the thresholds for hearing at 500, 1000 and ...
... Categories of degree of hearing loss are shown on the audiology resource sheet “Audiograms – An Explanation”. The pure tone average is usually calculated from the thresholds for hearing at 500, 1000 and ...
Activity 8.2.3 Hearing Loss Introduction
... 1. Either with a partner or individually visit the Better Hearing Institute’s website http://www.betterhearing.org to search for the answers to conclusion questions ...
... 1. Either with a partner or individually visit the Better Hearing Institute’s website http://www.betterhearing.org to search for the answers to conclusion questions ...
23-Audition
... • They then chart how much your hearing threshold differs from that of a “normal” listener at those frequencies in an audiogram. • Noise-induced hearing loss tends to affect higher frequencies first. • (especially around 4000 Hz) ...
... • They then chart how much your hearing threshold differs from that of a “normal” listener at those frequencies in an audiogram. • Noise-induced hearing loss tends to affect higher frequencies first. • (especially around 4000 Hz) ...
Theories of Hearing
... • Vestibular senses provide information about equilibrium and body position • Fluid moves in two vestibular sacs • Vestibular organs are also responsible for motion sickness • Motion sickness may be caused by discrepancies between visual information and vestibular sensation ...
... • Vestibular senses provide information about equilibrium and body position • Fluid moves in two vestibular sacs • Vestibular organs are also responsible for motion sickness • Motion sickness may be caused by discrepancies between visual information and vestibular sensation ...
Kein Folientitel
... inner ear. (The impedance of water 3600 times higher: 1 480 000 kg*m-2*s-1) The impedance transformation is 1: 20 2) Protection from high sound levels: The acoustical reflex. The ossicles reduce the sound level by 6 –10 dB. This is known as temporaray hearing attenuation ofter hearing loud sounds. ...
... inner ear. (The impedance of water 3600 times higher: 1 480 000 kg*m-2*s-1) The impedance transformation is 1: 20 2) Protection from high sound levels: The acoustical reflex. The ossicles reduce the sound level by 6 –10 dB. This is known as temporaray hearing attenuation ofter hearing loud sounds. ...
Hearing Aid Technology
... Conventional Analog - this is the oldest hearing aid technology available today. This type of circuit will amplify everything that enters the microphone, whether it is speech or background noise. It is basic hearing aid technology. Programmable - this more advanced technology has a computer chip ins ...
... Conventional Analog - this is the oldest hearing aid technology available today. This type of circuit will amplify everything that enters the microphone, whether it is speech or background noise. It is basic hearing aid technology. Programmable - this more advanced technology has a computer chip ins ...
Sensorineural hearing loss
![](https://commons.wikimedia.org/wiki/Special:FilePath/Cochlea-crosssection.png?width=300)
Sensorineural hearing loss (SNHL) is a type of hearing loss, or deafness, in which the root cause lies in the inner ear (cochlear), vestibulocochlear nerve (cranial nerve VIII), or central processing centers of the brain. Sensorineural hearing loss can be mild, moderate, severe, profound, or total.The great majority of human sensorineural hearing loss is caused by abnormal structure or function of the hair cells of the organ of Corti in the cochlea. There are also very unusual sensorineural hearing impairments that involve the eighth cranial nerve (the vestibulocochlear nerve) or the auditory portions of the brain. In the rarest of these sorts of hearing loss, only the auditory centers of the brain are affected. In this situation, cortical deafness, sounds may be heard at normal thresholds, but the quality of the sound perceived is so poor that speech cannot be understood.Sensory hearing loss is due to poor hair cell function. The hair cells may be abnormal at birth, or damaged during the lifetime of an individual. There are both external causes of damage, like noise trauma and infection, and intrinsic abnormalities, like deafness genes.Neural hearing loss occurs because of damage to the cochlear nerve (CVIII). This damage may affect the initiation of the nerve impulse in the cochlear nerve or the transmission of the nerve impulse along the nerve. Hearing loss that results from abnormalities of the central auditory system in the brain is called central hearing impairment. Since the auditory pathways cross back and forth on both sides of the brain, deafness from a central cause is unusual.Sensory hearing loss can also be caused by prolonged exposure to very loud noise, for example, being in a loud workplace without wearing protection, or having headphones set to high volumes for a long period. Exposure to a very loud noise such as a bomb blast can cause noise-induced hearing loss.