Abstract DISTORTED hearing deserves early recognition and careful evaluation. Diplacusis and poor pitch discrimination frequently produce disturbing emotional reactions in patients unaware of their own defective harmonics. Culpepper1 discovered that a congenital form of diplacusis was the main cause of "off-key" singers. He was able to obtain consistent diplacusis curves in repeated testing of these "tone-deaf" children 10 years of age with normal audiograms. Musicians are the first ones to recognize malfunction of their finely-tuned ears. Inability to register proper pitch made one vocal soloist stop a performance. This patient had a temporary diplacusis for six weeks following a stapedectomy. An emotional upset of a Catholic sister resulted when she was unable to play her violin without discord or direct a choir harmoniously. An acute cochlear hydrops due to a sudden descent of a jet-airliner resulted in a severe diplacusis of more than one octave in another patient. Diplacusis Testing References 1. Culpepper, L.: A Study of the Hearing Impairments in Defective Singers, thesis, Nashville, Tenn: George Peabody College for Teachers, 1961. 2. Shambaugh, G.E., Sr.: " Labyrinthine Deafness With Diplacusis , in The Surgical Clinics of Chicago , Philadelphia: W. B. Saunders, Co, 4:695-696, 1920. 3. MacFarlan, D.: An Unusual Type of Diplacusis , Arch Otolaryng 7:41-43, 1928.Crossref 4. Shambaugh, G.E., Jr.: Syndrome of Diplacusis and Nerve Deafness for Low Tones , Arch Otolaryng 21:694-702, 1935.Crossref 5. Fumeaux, J.: Diplacusis binaurale: Nouveau test de fidelite lors de lesion de l'orange de Corti , Acta Otolaryng 49:28-37, 1958.Crossref 6. Hallpike, C.S., and Cairns, H.: Observations on Pathology of Meniere's Syndrome , J Laryng 53:625-654, 1938.Crossref 7. Schuknecht, H.F.: Meniere's Disease: A Correlation of Symptomatology and Pathology , Laryngoscope 73:651-665, 1963.Crossref 8. Lawrence, M.: Effects of Interference With Terminal Blood Supply on Organ of Corti , Laryngoscope 76:1318-1337, 1966.Crossref 9. Simonton, K.M.: Diplacusis Binauralis Dysharmonica and Recruitment of Loudness: Their Clinical Significance, course no 476 , Amer Acad Ophth Otolaryng 1951. 10. Bracewell, A.: Diplacusis Binauralis: Complication of Stapedectomy , J Laryng 80:55-60, 1966.Crossref
Archives of Otolaryngology – American Medical Association
Published: Jun 1, 1968
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