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Phonophobia, also called ligyrophobia or sonophobia, is a fear of loud sounds—a type of specific phobia. It can also mean a fear of voices, or a fear of one's own voice.〔(dictionary.reference.com: Phonophobia )〕 It is a very rare phobia which is often the symptom of hyperacusis. Sonophobia can refer to the hypersensitivity of a patient to sound and can be part of the diagnosis of a migraine. The term ''phonophobia'' comes from Greek φωνή - ''phōnē'', "sound"〔(φωνή ), Henry George Liddell, Robert Scott,''A Greek-English Lexicon'', on Perseus〕 and φόβος - ''phobos'', "fear".〔(φόβος ), Henry George Liddell, Robert Scott, ''A Greek-English Lexicon'', on Perseus〕 Ligyrophobics may be fearful of devices that can suddenly emit loud sounds, such as computer speakers or fire alarms. When operating a home theater system, computer, television, CD player, etc., they may wish to have the volume turned down all the way before doing anything that would cause the speakers to emit sound, so that once the command to produce sound is given, the user can raise the volume of the speakers to a comfortable listening level. They may avoid parades and carnivals due to the loud instruments such as drums. As festive occasions are accompanied by music of over 120 decibels, many phobics develop agoraphobia. Other ligyrophobics also steer clear of any events in which fireworks are to be let off. Another example is watching someone blow up a balloon beyond its normal capacity. This is often an unsettling, even disturbing thing for a person with ligyrophobia to observe, as he or she anticipates a loud sound when the balloon pops. When balloons pop, two types of reactions are heavy breathing and panic attacks. The sufferer becomes anxious to get away from the source of the loud sound. It may also be related to, caused by, or confused with "hyperacusis", extreme sensitivity to loud sounds Phonophobia also refers to an extreme form of misophonia.〔"Decreased sound tolerance: hypersensitivity of hearing (hyperacusis, misophonia, phonophobia)", Jonathan Hazell FRCS, Director, Tinnitus and Hyperacusis Centre, London UK ()〕 ==Acousticophobia== Acousticophobia, fear of noise, is a branch of phonophobia. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「phonophobia」の詳細全文を読む スポンサード リンク
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