Applied Psychophysiology and Biofeedback

, Volume 31, Issue 1, pp 65–83 | Cite as

Effects of Biofeedback in Phonatory Disorders and Phonatory Performance: A Systematic Literature Review

  • Y. Maryn
  • M. De Bodt
  • P. Van Cauwenberge

The purpose of this article was to systematically review the literature on the effects of biofeedback therapy in the domain of phonatory disorders and phonatory performance, using studies in peer-reviewed journals. An extensive definition of biofeedback is given and its place in voice treatment is defined. Eighteen group or case studies or reports considering the effects of electromyographic, laryngoscopic and acoustic biofeedback in dysphonic patients (hyperfunctional voice disorders, hypofunctional voice disorders, psychogenic voice disorder, laryngeal trauma, total laryngectomy, vocal cord dysfunction) and participants with normal voices are included and an analysis of procedure as well as research design and results is presented. The usefulness of biofeedback in phonatory disorders and performance was to be interpreted based on tendencies, since there is a lack of randomized controlled efficacy studies. In only 3 of 18 studies (16.7%) did biofeedback therapy fail to improve voice quality or not result in better results than other forms of therapy. Recommendations for improved methodologies are made, which include the use of acoustic voice quality parameters.


biofeedback voice disorders voice therapy efficacy 



The authors wish to acknowledge librarian Jan Deman for library assistance and article retrieval.


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© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  1. 1.Department of Otorhinolaryngology, Head & Neck Surgery, Speech and Language Pathology and AudiologySint-Jan General HospitalBrugesBelgium
  2. 2.Department of Otorhinolaryngology, Head & Neck Surgery, Department of Communication DisordersUniversity Hospital, UIAAntwerpBelgium
  3. 3.Department of Otorhinolaryngology, Head & Neck Surgery, Department of Speech and Language PathologyUniversity HospitalGhentBelgium
  4. 4.Department of Otorhinolaryngology, Head & Neck Surgery, Speech and Language Pathology and AudiologySint-Jan General HospitalBrugesBelgium

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