paracusis

paracusis
   Also known as paracousis. Both terms stem from the Greek words para (beside, near, resembling, accessory to, beyond, apart from, abnormal) and akouein (to hear). They translate loosely as disordered hearing. The term paracusis is used in a broad sense to denote any kind of false acoustic perception. In a more restricted sense, it refers to a group of disturbances in the perception of isolated notes. Paracusis in the broad sense is commonly divided into three types, i.e. paracu-sis loci (a disturbance of spatial hearing, entailing the false localization of acoustic sources), * paracusis of Willis (also known as paradoxical deafness), and paracusis duplicata (characterized by an audible echo, as sometimes experienced in Ménière's disease). Paracusis in the restricted sense is divided into four subclasses, which partly overlap with the category paracusis duplicata. These subclasses are diplacusis binau-ralis echotica (in which sounds are heard twice, due to the time that may lapse between hearing with a healthy ear and with a diseased ear), dipla-cusis monauralis echotica (in which sounds are echoed within the diseased ear), diplacusis bin-auralis disharmonica (in which a dissonant double clang is produced, due to the disordered processing of sounds by a diseased ear), and diplacu-sis qualitatis (in which the diseased ear changes the quality of notes, without altering their pitch).
   References
   Ninio, J. (2001). The science ofillusions.Trans-lated by Philip, F. Ithaca, NY: Cornell University Press.
   Révész, G. (2001). Introduction to the psychology ofmusic. Translated by de Courcy, G.I.C. Mineola, NY: Dover Publications.

Dictionary of Hallucinations. . 2010.

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  • Paracusis — vgl. Parakusie …   Das Wörterbuch medizinischer Fachausdrücke

  • paracusis — noun see paracusia * * * paracusic, /par euh kyooh zik, sik/, adj. /par euh kyooh sis/, n. Pathol. defective hearing. Also, paracusia /par euh kyooh zheuh, zhee euh, zee euh/. [1650 60; PAR + Gk ákousis hearing; see ACOUSTIC, SIS] * * * paracusis …   Useful english dictionary

  • Paracusis Loci — Paracusis Loci,   Parakusie …   Universal-Lexikon

  • paracusis of Willis —    Also known as paracusis Willisii, paracusis Willisiana, false paracusis, paradoxical hearing loss, and paradoxical deafness. The term paracusis of Willis refers to the British physician Thomas Willis (1621 1675), who is credited with having… …   Dictionary of Hallucinations

  • paracusis duplicata —    A term used to denote a type of * paracusis characterized by an audible echo. Paracusis duplicata is associated primarily with Ménière s disease.    References    Révész, G. (2001). Introduction to the psychology ofmusic. Translated by de… …   Dictionary of Hallucinations

  • paracusis loci —    A term used to denote a type of * paracusis in which spatial hearing is disturbed, entailing the false localization of acoustic sources.    References    Révész, G. (2001). Introduction to the psychology ofmusic. Translated by de Courcy, G.I.C …   Dictionary of Hallucinations

  • paracusis Willisiana —    see paracusis of Willis …   Dictionary of Hallucinations

  • paracusis Willisii —    see paracusis of Willis …   Dictionary of Hallucinations

  • paracusis — paracusic, /par euh kyooh zik, sik/, adj. /par euh kyooh sis/, n. Pathol. defective hearing. Also, paracusia /par euh kyooh zheuh, zhee euh, zee euh/. [1650 60; PAR + Gk ákousis hearing; see ACOUSTIC, SIS] * * * …   Universalium

  • paracusis — par·acu·sis .par ə k(y)ü səs n, pl acu·ses .sēz a disorder in the sense of hearing par·acu·sic sik adj or n * * * n. any distortion of hearing. * * * par·acu·sis (par″ə kuґsis) paracusia …   Medical dictionary

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