SVIBOR - Project code: 5-12-110


Strossmayerov trg 4, HR - 10000 ZAGREB
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SVIBOR - Collecting Data on Projects in Croatia

Project code: 5-12-110

Ethiology of Articulation Disorders, and Syistematization and Rehabilitation of Voice

Main researcher: ŠKARIĆ, IVO (47243)

Type of research: applied
Duration from: 01/01/91. to 12/31/93.

Papers on project (total): 21
Institution name: Filozofski fakultet - Humanističke znanosti, Zagreb (130)
Department/Institute: Departement of phonetics
Address: Ivana Lučića 3
City: 10000 - Zagreb, Croatia
Phone: 385 (0)1 6120-092,6120-096
Fax: 385 (0)1 513-834
Phone: 385 (0)1 532-607

Summary: Audiological, phoniatric, psychological, psychiatric, neurological, orthodontic, logopedic and phonetic data (40 variables) are being collected on a sample of 75 children with articulation disorders, between the ages 6 to 8. Data analysis is expected to address the problem of causes of functional articulation disorders in order to improve differential diagnostic techniques and create new, also differential, procedures during therapy. Voice will be studied through perceptual description and categorization of voices and dysphonic disorders, which is a process of psychosomatic summations and averaging of the modulated speech sound. In this way, objective acoustic correlates will be determined on electroacoustic computer operated apparatus. This apparatus will also measure average fundamental frequency values and voice intensity, and display average spectrum for 60-second speech segments. This objective procedure will be applied in monitoring voice changes as well, which will be perceived auditorily, induced by control of a healthy voice or rehabilitation of a dysphonic one.

Keywords: Articulation, voice, articulation disorder, voice disorder, orthodontics.

Research goals: Articulation errors are the most frequent speech disorders which, according to some authors, can be found in 35% of preschool children and in 12 to 15 % children of school age. The aim of this research is to determine the factors causing articulation disorders, in order to apply suitable treatment for their elimination. We believe that this would have better effects on related disorders, among which reading and writing disorders are the most frequent. Nearly 20% of population have voice disorders, which differ in their phenomenology and etyology. This research will attempt to isolate the hereditary factor, whereas phenomenology will be more strictly determined through a classification based on three objectively measurable factors: average speech fundamental, average speech loudness (of normal speech and maximally loud speech) and average spectral form of speech. The results of this investigation may create a basis for preventive measures and design of health protection programs, as well as a basis for different approaches to treatment of articulation and voice disorders.

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Last update: 10/20/95