An exaggerated startle reflex and hypervigilance are listed as symptoms of PTSD (DSM-IV, D.5), and individuals with PTSD have been shown to produce heightened autonomic responses (eg increased heart rate) to acoustic stimuli that would not be expected to produce a startle response. My clinical observation of over 85 ASD clients shows that once TTTS has become established, auditory hypervigilance and an exaggerated startle reflex can lead to the escalation of hyperacusis, where the range of sounds that elicit this involuntary response increases to include more everyday sounds. These sounds become increasingly intolerable when TTTS symptoms are exacerbated following exposure. Phonophobia, headache, fatigue, anxiety, and depression can result, particularly if an inadequate explanation or diagnosis of TTTS symptoms is not offered.
^ Langguth B, Goodey R, Azevedo A, et al. (2007). "Consensus for tinnitus patient assessment and treatment outcome measurement: Tinnitus Research Initiative meeting, Regensburg, July 2006". Tinnitus: Pathophysiology and Treatment. Progress in Brain Research. 166. pp. 525–36. doi:10.1016/S0079-6123(07)66050-6. ISBN 978-0444531674. PMC 4283806. PMID 17956816.
Most tinnitus is subjective, meaning that only you can hear the noise. But sometimes it's objective, meaning that someone else can hear it, too. For example, if you have a heart murmur, you may hear a whooshing sound with every heartbeat; your clinician can also hear that sound through a stethoscope. Some people hear their heartbeat inside the ear — a phenomenon called pulsatile tinnitus. It's more likely to happen in older people, because blood flow tends to be more turbulent in arteries whose walls have stiffened with age. Pulsatile tinnitus may be more noticeable at night, when you're lying in bed and there are fewer external sounds to mask the tinnitus. If you notice any new pulsatile tinnitus, you should consult a clinician, because in rare cases it is a sign of a tumor or blood vessel damage.
An outer ear infection is sometimes called swimmer’s ear. That’s because it often starts as a result of water that remains in your ear after swimming or bathing. The moisture becomes a breeding ground for bacteria. If your outer ear is scratched or if you irritate the outer lining of your ear by putting your fingers or other objects in your ear, a bacterial infection can occur.
Most cases of hearing loss are due to conductive disturbances. The passage of sounds waves are either obstructed within the ear canal or the transmission across the middle ear is impaired. Depending on the cause, the appropriate treatment may allow for a complete restoration of the hearing ability. The buildup and impaction of earwax, trauma, infections (acute or chronic) and fluid build up in the middle ear (effusion) are more common causes of conductive hearing loss.
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'Acoustic shock' is a term used in connection with incidents involving exposure to short duration, high frequency, high intensity sounds through a telephone headset. Some sources suggest that these incidents are associated with a range of physiological and psychological symptoms that have been reported amongst headset wearers. It has not been established whether the reported symptoms are caused directly by exposure to these unexpected sounds. There is no clear single cause of these incidents, but one cause may be interference on the telephone line. Although call handlers may be shocked or startled by the sounds, exposure to them should not cause hearing damage as assessed by conventional methods.
Ototoxic drugs also may cause subjective tinnitus, as they may cause hearing loss, or increase the damage done by exposure to loud noise. Those damages may occur even at doses that are not considered ototoxic.[28] More than 260 medications have been reported to cause tinnitus as a side effect.[29] In many cases, however, no underlying cause could be identified.[2]
Post-lingual deafness is hearing loss that is sustained after the acquisition of language, which can occur due to disease, trauma, or as a side-effect of a medicine. Typically, hearing loss is gradual and often detected by family and friends of affected individuals long before the patients themselves will acknowledge the disability.[41] Post-lingual deafness is far more common than pre-lingual deafness. Those who lose their hearing later in life, such as in late adolescence or adulthood, face their own challenges, living with the adaptations that allow them to live independently.
Hyperacusis escalation is common with ASD so that an increasing range of sounds become intolerable, with a corresponding escalation in TTTS symptoms, potentially leading to TMD. For this reason, a detailed history is essential in tracking the order of development and escalation of symptoms, and their relationship to acoustic incidents/headset use, prior to making a responsible and considered diagnosis of ASD.
Globally, hearing loss affects about 10% of the population to some degree.[50] It caused moderate to severe disability in 124.2 million people as of 2004 (107.9 million of whom are in low and middle income countries).[13] Of these 65 million acquired the condition during childhood.[15] At birth ~3 per 1000 in developed countries and more than 6 per 1000 in developing countries have hearing problems.[15]
No. The worst case scenario is that the ringing in your ears may suggest you have permanent tinnitus and this may have a negative impact on your day to day life affecting your concentration, sleep and work performance which may lead to insomnia or depression for example. However, this can be controlled through certain therapies such as sound therapy and other self-help methods, which helps a person cope with tinnitus if it happens to be permanent.

Post-lingual deafness is hearing loss that is sustained after the acquisition of language, which can occur due to disease, trauma, or as a side-effect of a medicine. Typically, hearing loss is gradual and often detected by family and friends of affected individuals long before the patients themselves will acknowledge the disability.[41] Post-lingual deafness is far more common than pre-lingual deafness. Those who lose their hearing later in life, such as in late adolescence or adulthood, face their own challenges, living with the adaptations that allow them to live independently.
Disorders responsible for hearing loss include auditory neuropathy,[57][58] Down syndrome,[59] Charcot–Marie–Tooth disease variant 1E,[60] autoimmune disease, multiple sclerosis, meningitis, cholesteatoma, otosclerosis, perilymph fistula, Ménière's disease, recurring ear infections, strokes, superior semicircular canal dehiscence, Pierre Robin, Treacher-Collins, Retinitis Pigmentosa, Pedreds, and Turners syndrome, syphilis, vestibular schwannoma, and viral infections such as measles, mumps, congenital rubella (also called German measles) syndrome, several varieties of herpes viruses,[61] HIV/AIDS,[62] and West Nile virus.
Hearing loss is defined as diminished acuity to sounds which would otherwise be heard normally.[15] The terms hearing impaired or hard of hearing are usually reserved for people who have relative inability to hear sound in the speech frequencies. The severity of hearing loss is categorized according to the increase in intensity of sound above the usual level required for the listener to detect it.
Post-lingual deafness is hearing loss that is sustained after the acquisition of language, which can occur due to disease, trauma, or as a side-effect of a medicine. Typically, hearing loss is gradual and often detected by family and friends of affected individuals long before the patients themselves will acknowledge the disability.[41] Post-lingual deafness is far more common than pre-lingual deafness. Those who lose their hearing later in life, such as in late adolescence or adulthood, face their own challenges, living with the adaptations that allow them to live independently.
Deaf culture refers to a tight-knit cultural group of people whose primary language is signed, and who practice social and cultural norms which are distinct from those of the surrounding hearing community. This community does not automatically include all those who are clinically or legally deaf, nor does it exclude every hearing person. According to Baker and Padden, it includes any person or persons who "identifies him/herself as a member of the Deaf community, and other members accept that person as a part of the community,"[114] an example being children of deaf adults with normal hearing ability. It includes the set of social beliefs, behaviors, art, literary traditions, history, values, and shared institutions of communities that are influenced by deafness and which use sign languages as the main means of communication.[115][116] Members of the Deaf community tend to view deafness as a difference in human experience rather than a disability or disease.[117][118] When used as a cultural label especially within the culture, the word deaf is often written with a capital D and referred to as "big D Deaf" in speech and sign. When used as a label for the audiological condition, it is written with a lower case d.[115][116]
The use of sound therapy by either hearing aids or tinnitus maskers helps the brain ignore the specific tinnitus frequency. Although these methods are poorly supported by evidence, there are no negative effects.[3][86][87] There are several approaches for tinnitus sound therapy. The first is sound modification to compensate for the individual's hearing loss. The second is a signal spectrum notching to eliminate energy close to the tinnitus frequency.[88][89] There is some tentative evidence supporting tinnitus retraining therapy, which is aimed at reducing tinnitus-related neuronal activity.[3][90][89] There are preliminary data on an alternative tinnitus treatment using mobile applications, including various methods: masking, sound therapy, relaxing exercises and other.[91][92] These applications can work as a separate device or as a hearing aid control system.[93]
Fatigue can be described in various ways. Sometimes fatigue is described as feeling a lack of energy and motivation (both mental and physical). The causes of fatigue are generally related to a variety of conditions or diseases, for example, anemia, mono, medications, sleep problems, cancer, anxiety, heart disease, and drug abuse.Treatment of fatigue is generally directed toward the condition or disease that is causing the fatigue.
While the American College of Physicians indicated that there is not enough evidence to determine the utility of screening in adults over 50 years old who do not have any symptoms,[99] the American Language, Speech Pathology and Hearing Association recommends that adults should be screened at least every decade through age 50 and at 3-year intervals thereafter, to minimize the detrimental effects of the untreated condition on quality of life.[100] For the same reason, the US Office of Disease Prevention and Health Promotion included as one of Healthy People 2020 objectives: to increase the proportion of persons who have had a hearing examination.[101]

When there does not seem to be a connection with a disorder of the inner ear or auditory nerve, the tinnitus is called nonotic (i.e. not otic). In some 30% of tinnitus cases, the tinnitus is influenced by the somatosensory system, for instance, people can increase or decrease their tinnitus by moving their face, head, or neck.[25] This type is called somatic or craniocervical tinnitus, since it is only head or neck movements that have an effect.[23]

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^ Jump up to: a b c Han BI, Lee HW, Kim TY, Lim JS, Shin KS (March 2009). "Tinnitus: characteristics, causes, mechanisms, and treatments". Journal of Clinical Neurology. 5 (1): 11–19. doi:10.3988/jcn.2009.5.1.11. PMC 2686891. PMID 19513328. About 75% of new cases are related to emotional stress as the trigger factor rather than to precipitants involving cochlear lesions.
When asked if the 80-year-old mark for qualification was a bit on the high side, and also about “Mrs. Eighty,” Dr. Ramasamy was quick to respond: “That’s not true; we live in Miami, where sex is of paramount importance to all men regardless of their age. We have had irate patients who are 84 and 85 years of age call us asking why the cutoff is 80, and I feel bad for them, but that’s in our clinical trial criteria. Maybe in the next trial, we could design it to go to 90.”
Fetal alcohol spectrum disorders are reported to cause hearing loss in up to 64% of infants born to alcoholic mothers, from the ototoxic effect on the developing fetus plus malnutrition during pregnancy from the excess alcohol intake. Premature birth can be associated with sensorineural hearing loss because of an increased risk of hypoxia, hyperbilirubinaemia, ototoxic medication and infection as well as noise exposure in the neonatal units. Also, hearing loss in premature babies is often discovered far later than a similar hearing loss would be in a full-term baby because normally babies are given a hearing test within 48 hours of birth, but doctors must wait until the premature baby is medically stable before testing hearing, which can be months after birth. [56]The risk of hearing loss is greatest for those weighing less than 1500 g at birth.
Prolonged exposure to loud sounds is the most common cause of tinnitus. Up to 90% of people with tinnitus have some level of noise-induced hearing loss. The noise causes permanent damage to the sound-sensitive cells of the cochlea, a spiral-shaped organ in the inner ear. Carpenters, pilots, rock musicians, street-repair workers, and landscapers are among those whose jobs put them at risk, as are people who work with chain saws, guns, or other loud devices or who repeatedly listen to loud music. A single exposure to a sudden extremely loud noise can also cause tinnitus.
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