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Hyperacusis

hyperacusis, hyperacusis treatment
Hyperacusis or hyperacousis is a debilitating hearing disorder1 characterized by an increased sensitivity to certain frequency and volume ranges of sound a collapsed tolerance to usual environmental sound A person with severe hyperacusis has difficulty tolerating everyday sounds, some of which may seem unpleasantly or painfully loud to that person but not to others23

It can be acquired as a result of damage sustained to the hearing apparatus, or inner ear There is speculation that the efferent portion of the auditory nerve olivocochlear bundle has been affected efferent meaning fibers that originate in the brain which serve to regulate hearing This theory suggests that the efferent fibers of the auditory nerve are selectively damaged, while the hair cells that allow the hearing of pure tones in an audiometric evaluation remain intact In cases not involving aural trauma to the inner ear, hyperacusis can also be acquired as a result of damage to the brain or the neurological system In these cases, hyperacusis can be defined as a cerebral processing problem specific to how the brain perceives sound In rare cases, hyperacusis may be caused by a vestibular disorder This type of hyperacusis, called vestibular hyperacusis, is caused by the brain perceiving certain sounds as motion input as well as auditory input

Although severe hyperacusis is rare, a lesser form of hyperacusis affects musicians, making it difficult for them to play in the very loud environment of a rock band or orchestra which previously gave them no problems It also makes attendance at loud discos or live events difficult for a portion of the population, given that sound levels at such events usually exceed recommended safe levels of exposure This is a problem which may be caused by genetic differences, stress or ill-health, or by abnormal responses in the tensor tympani tonic tensor tympani syndrome and stapedius muscles, which function in the normal acoustic reflex response that protects the inner ear from loud sounds4

25% of people with tinnitus report mild hyperacusis5

Contents

  • 1 Signs and symptoms
  • 2 Causes
  • 3 Treatment
  • 4 Notable cases
  • 5 See also
  • 6 References
  • 7 Further reading
  • 8 External links

Signs and symptomsedit

In hyperacusis, the symptoms are ear pain, annoyance, and general intolerance to many sounds that most people are unaffected by Crying spells or panic attacks may result from the experience of hyperacusis Hyperacusis may affect either or both ears6 As many as 86% of people with hyperacusis also have tinnitus37 Hyperacusis can result in anxiety, stress and phonophobia Avoidant behaviour is often a response to prevent the effects of hyperacusis and this can include avoiding social situations

A person with hyperacusis might be startled by very low sound levels Everyday sounds like shutting doors, ringing phones, television, running water, ticking clocks, chewing gum, cooking, normal conversation, eating, dishes, and other sounds will cause varying levels of annoyance and can potentially pain the ears In many people with hyperacusis, an increased activity develops in the tensor tympani muscle in the middle ear as part of the startle response to some sounds This lowered reflex threshold for tensor tympani contraction is activated by the perception or even anticipation of loud sound, and is called tonic tensor tympani syndrome TTTS In some people with hyperacusis, the tensor tympani muscle can contract just by thinking about a loud sound Following exposure to intolerable sounds, this contraction of the tensor tympani muscle tightens the ear drum, which can lead to the symptoms of ear pain/a fluttering sensation/a sensation of fullness in the ear in the absence of any middle or inner ear pathology

Sometimes hyperacusis can affect the vestibular system giving problems of balance, and this is referred to as vestibular hyperacusis Vestibular hyperacusis, can also involve feelings of dizziness, nausea, or a loss of balance when sounds of certain pitches are present For instance, people with vestibular hyperacusis may feel like they are falling and as a result involuntarily grimace and clutch for something to brace themselves with The degree to which a person is affected depends on not only the overall severity of the symptoms but also whether the person can detect sounds in that frequency range at the volume in question, as well as on the person's preexisting muscle tone and severity of startle response

Causesedit

The most common cause of hyperacusis is overexposure to excessively high decibel levels or sound pressure levels8 Some come down with hyperacusis suddenly as a result of acoustic shock as by firing a gun, having an airbag deploy in their car, experiencing any extremely loud sound,9 taking ear sensitizing drugs, Lyme disease, Ménière's disease, temporomandibular joint disorder, head injury, or surgery Others are born with sound sensitivity, develop Superior Canal Dehiscence Syndrome, have had a history of ear infections, or come from a family that has had hearing problems The Diagnostic and Statistical Manual of Mental Disorders DSM that is published by the American Psychiatric Association lists hyperacusis as one of the possible signs indicating phencyclidine PCP or Angel-dust intoxication

Causes include, but are not limited to:

Treatmentedit

The most common treatment for hyperacusis is retraining therapy which uses broadband noise Tinnitus retraining therapy, a treatment originally used to treat tinnitus, uses broadband noise to treat hyperacusis Pink noise can also be used to treat hyperacusis By listening to broadband noise at soft levels for a disciplined period of time each day, patients can rebuild ie, re-establish their tolerances to sound When seeking treatment, it is important that the physician determine the patient's Loudness Discomfort Levels LDL so that hearing tests can be adjusted accordingly brainstem auditory evoke response If people have access to medical care, steroids are used to treat hyperacusis within 72 hours of the onset of the conditioncitation needed

Notable casesedit

  • Ludwig van Beethoven suffered from hyperacusis, alongside tinnitus and hearing loss14
  • Musician Jason DiEmilio of Azusa Plane suffered from hyperacusis His story was told in BuzzFeed15
  • Musician Stephin Merritt suffers from monaural hyperacusis in his left ear, which influences the instrumentation of his band, The Magnetic Fields, leads him to wear earplugs during performances and to cover his affected ear during audience applause16
  • Musician Laura Ballance of Superchunk suffers from hyperacusis and no longer tours with the band
  • Chess legend Bobby Fischer is saidby whom to have had hyperacusis, and he needed total silence in order to concentrate on his games
  • American politician, LGBT activist, and film producer Michael Huffington has mild hyperacusis and underwent sound therapy after finding that running tap water caused ear pain17
  • Russian communist revolutionary, politician, and political theorist Vladimir Lenin was reported seriously ill by the latter half of 1921, suffering from regular headache, insomnia and hyperacusis18

See alsoedit

  • Misophonia
  • Hearing loss
  • Sensory processing disorder
  • Tinnitus
  • Tinnitus masker

Referencesedit

  1. ^ Salvi, R; et al 2016 "Inner Hair Cell Loss Disrupts Hearing and Cochlear Function Leading to Sensory Deprivation and Enhanced Central Auditory Gain" Frontiers in neuroscience 10: 621 PMID 28149271 CS1 maint: Explicit use of et al link
  2. ^ a b c d e f g h i Baguley DM December 2003 "Hyperacusis" J R Soc Med 96 12: 582–5 PMC 539655  PMID 14645606 doi:101258/jrsm9612582 
  3. ^ a b c d Andersson G, Jüris L, Kaldo V, Baguley DM, Larsen HC, Ekselius L 2005 "Hyperacusis--an unexplored field Cognitive behavior therapy can relieve problems in auditory intolerance, a condition with many questions" Lakartidningen in Swedish 102 44: 3210–2 PMID 16329450 
  4. ^ Westcott M December 2006 "Acoustic shock injury ASI" Acta Otolaryngol Suppl 556: 54–8 PMID 17114144 doi:101080/03655230600895531 
  5. ^ Jastreboff PJ, Jastreboff MM "Tinnitus Retraining Therapy TRT as a Method for Treatment of Tinnitus and Hyperacusis Patients" Journal of the American Academy of Audiology 11 3: 162–177 
  6. ^ "Hyperacusis: An Increased Sensitivity to Everyday Sounds" American Academy of Otolaryngology-Head and Neck Surgery 21 April 2014 
  7. ^ Nelson JJ, Chen K July 2004 "The relationship of tinnitus, hyperacusis, and hearing loss" Ear Nose Throat J 83 7: 472–6 PMID 15372918 
  8. ^ Størmer CC, Stenklev NC March 2007 "Rock music and hearing disorders" Tidsskr Nor Laegeforen in Norwegian 127 7: 874–7 PMID 17435808 
  9. ^ Westcott, M; Sanchez; et al 2013 "Tonic tensor tympani syndrome in tinnitus and hyperacusis patients: a multi-clinic prevalence study" Noise & health 15 63: 117–28 PMID 23571302 CS1 maint: Explicit use of et al link
  10. ^ Anxierty caused hyperacusis
  11. ^ "Ciprofloxacin Related Hyperacusis, From FDA reports" 2017 
  12. ^ Batuecas-Caletrío, A; Pino-Montes, J del; Cordero-Civantos, C; Calle-Cabanillas, M I; Lopez-Escamez, J A 2013-04-01 "Hearing and vestibular disorders in patients with systemic lupus erythematosus" Lupus 22 5: 437–442 ISSN 0961-2033 PMID 23423252 doi:101177/0961203313477223 
  13. ^ Zarchi O, Attias J, Gothelf D 2010 "Auditory and visual processing in Williams syndrome" Isr J Psychiatry Relat Sci 47 2: 125–31 PMID 20733255 
  14. ^ "Molecular Interventions - CLOCKSS" Molintervaspetjournalsorg Retrieved 2012-10-29 
  15. ^ http://wwwbuzzfeedcom/joycecohen/noise-kills-when-everyday-sound-becomes-torture
  16. ^ "The Magnetic Fields in Concert" Creators at Carnegie National Public Radio 2005-05-31 Retrieved 2005-08-27 
  17. ^ http://wwwhuffingtonpostcom/michael-huffington/rejoining-society_b_7488310html
  18. ^ Shub 1966, p 426; Rice 1990, p 187; Service 2000, p 435

Further readingedit

  • Tyler, Richard S; Pienkowski, Martin; et al 1 December 2014 "A Review of Hyperacusis and Future Directions: Part I Definitions and Manifestations" American Journal of Audiology 23 4: 402 doi:101044/2014_AJA-14-0010 
  • Pienkowski, Martin; Tyler, Richard S; et al 1 December 2014 "A Review of Hyperacusis and Future Directions: Part II Measurement, Mechanisms, and Treatment" American Journal of Audiology 23 4: 420 doi:101044/2014_AJA-13-0037 
  • Andersson, David M Baguley, Gerhard 2007 Hyperacusis : mechanisms, diagnosis, and therapies San Diego: Plural Pub ISBN 978-1597561044 
  • "Decreased Sound Tolerance", by Pawel J Jastreboff and Margaret J Jastreboff, in: "Tinnitus: theory and management", ed James Byron Snow, 2004, ISBN 1-55009-243-X

External linksedit

  • "Hyperacusis Focus"  A comprehensive informational website focused on assimilating all research related to hyperacusis
  • "Hyperacusis Research Foundation"  Non-profit established to engage researchers, provide research grants, and increase public awareness
  • "Hyperacusis Network"  An international support group established to care for individuals with a decreased sound tolerance DST

hyperacusis, hyperacusis and tinnitus, hyperacusis causes, hyperacusis in children, hyperacusis meaning, hyperacusis network, hyperacusis pronunciation, hyperacusis research, hyperacusis symptoms, hyperacusis treatment


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Hyperacusis


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