Karen Forrest

Karen Forrest

Emeritus Professor, Speech, Language and Hearing Sciences


  • Ph.D., Speech Pathology and Audiology, University of Iowa, 1983
  • A.B., Washington University, 1974

Research interests

  • Motor speech disorders in adults and children, including deficits associated with development and those that accompany neurological disease (e.g., Parkinson’s, dysarthria, apraxia)
  • Variability and consistency of speech production in children and adults, from sensory and motor aspects of speech
  • Sources of variation that emanate from both sensory and motor aspects of speech
  • Speech learning and the effects of auditory perception on speech production

Selected publications

Evaluation of a combined treatment approach for childhood apraxia of speech. Iuzzini J, Forrest K. Clin Linguist Phon. 2010 Jan;24(4-5):335-45.

A comparison of oral motor and production training for children with speech sound disorders. Forrest K, Iuzzini J. Seminars in Speech Lang. 2008 Nov;29(4):304-11.

Diagnostic criteria of developmental apraxia of speech used by clinical speech-language pathologists. Forrest K. Am J Speech Lang Pathol. 2003 Aug;12(3):376-80.

Are oral-motor exercises useful in the treatment of phonological/articulatory disorders? Forrest K. Semin Speech Lang. 2002 Feb;23(1):15-26.

Feature analysis of segmental errors in children with phonological disorders. Forrest K, Morrisette ML. J Speech Lang Hear Res. 1999 Feb;42(1):187-94.

Dynamic aspects of lower lip movement in parkinsonian and neurologically normal geriatric speakers' production of stress. Forrest K, Weismer G. J Speech Hear Res. 1995 Apr;38(2):260-72.

Listeners' familiarity and perception of an idiosyncratic phonologic pattern. Powell TW, Elbert M, Forrest K. Percept Mot Skills. 1990 Jun;70(3 Pt 1):859-64.

Statistical comparison of movement amplitudes from groupings of normal geriatric speakers. Forrest K, Weismer G, Adams S. J Speech Hear Res. 1990 Jun;33(2):386-9.

Kinematic, acoustic, and perceptual analyses of connected speech produced by parkinsonian and normal geriatric adults. Forrest K, Weismer G, Turner GS. J Acoust Soc Am. 1989 Jun;85(6):2608-22.

Acoustic and perceptual analysis of word-initial stop consonants in phonologically disordered children. Forrest K, Rockman BK.J Speech Hear Res. 1988 Sep;31(3):449-59.

Statistical analysis of word-initial voiceless obstruents: preliminary data. Forrest K, Weismer G, Milenkovic P, Dougall RN. J Acoust Soc Am. 1988 Jul;84(1):115-23.

Effects  of white noise masking and low pass filtering on speech kinematics. Forrest K, Abbas PJ, Zimmermann GN. J Speech Hear Res. 1986 Dec;29(4):549-62.