Research on speech motor control and its disorders: A review and prospective

Journal/Book: J Commun Disord. 2000; 33: 655 Avenue of the Americas, New York, NY 10010, USA. Elsevier Science Inc. 391-428.

Abstract: This paper reviews issues in speech motor control and a class of communication disorders known as motor speech disorders. Speech motor control refers to the systems and strategies that regulate the production of speech, including the planning and preparation of movements (sometimes called motor programming) and the execution of movement plans to result in muscle contractions and structural displacements. Traditionally, speech motor control is distinguished from phonologic operations, but in some recent phonologic theories, there is a deliberate blurring of the boundaries between phonologic representation and motor functions. Moreover, there is continuing discussion in the literature as to whether a given motor speech disorder (especially apraxia of speech and stuttering) should be understood at the phonologic level, the motoric level, or both of these. The motor speech disorders considered here include: the dysarthrias, apraxia of speech, developmental apraxia of speech, developmental stuttering, acquired (neurogenic and psychogenic) stuttering, and cluttering.

Note: Review Kent RD, Univ Wisconsin, Waisman Ctr, Rm 435, 1500 Highland Ave, Madison,WI 53705 USA

Keyword(s): dysarthria; apraxia of speech; stuttering; speech motor control; speech disorders; TRANSCRANIAL MAGNETIC STIMULATION; AMYOTROPHIC-LATERAL-SCLEROSIS; DEVELOPMENTAL APRAXIA; PARKINSONS-DISEASE; DIFFERENTIAL-DIAGNOSIS; LANGUAGE IMPAIRMENT; TREATMENT EFFICACY; VOCAL-TRACT; NONWORD REPETITION; AUDITORY-FEEDBACK

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