Diplophonia

Diplophonia, also known as diphthongia, is a phenomenon in which a voice is perceived as being produced with two concurrent pitches.^[1] Diplophonia is a result of vocal fold vibrations that are quasi-periodic in nature.^[2] It has been reported from old days, but there is no uniform interpretation of established mechanisms.^[3] It has been established that diplophonia can be caused by various vocal fold pathologies, such as vocal folds polyp, vocal fold nodule, recurrent laryngeal nerve paralysis^[3] or vestibular fold hypertrophy.^[4]

References[edit | edit source]

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↑ ^3.0 ^3.1 吉岡博英 (1987). "二重声の成立機序に関する音響的側面について" (in Japanese). 筑波大学. Retrieved 2015-12-26.{{cite web}}: CS1 maint: unrecognized language (link)
↑ "仮声帯肥大" (in Japanese). sickness-dictionary.jp. Archived from the original on 2016-03-04. Retrieved 2015-12-26.{{cite web}}: CS1 maint: unrecognized language (link)

Resources[edit source]

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Source: Data courtesy of the U.S. National Library of Medicine. Since the data might have changed, please query MeSH on Diplophonia for any updates.

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[1] ↑

[2] ↑

[Yoshioka_1987-3] 3.0 ^3.1 吉岡博英 (1987). "二重声の成立機序に関する音響的側面について" (in Japanese). 筑波大学. Retrieved 2015-12-26.{{cite web}}: CS1 maint: unrecognized language (link)

[sickness-dictionary-4] "仮声帯肥大" (in Japanese). sickness-dictionary.jp. Archived from the original on 2016-03-04. Retrieved 2015-12-26.{{cite web}}: CS1 maint: unrecognized language (link)

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