Speech Disorders

speech defect

speech defect, any condition that interferes with the mental formation of words or their physical production. Speech defects in children generally become apparent in the early school years. Speech problems may arise from organic or functional abnormalities, but in practice the two are often hard to differentiate. Organic defects include deafness, cleft palate, dental abnormalities, and brain damage; most functional problems are basically psychological. Speech defects are generally categorized as disorders of sound production; disorders of voicing, e.g., loudness, pitch, and quality deviations; disorders of rhythm, such as stuttering and stammering; and disorders of language formulation and expression, including aphasia, the inability to use words as symbols of ideas. Treatment of a speech defect may include correction of organic conditions, psychotherapy, and training in proper articulation; it is rarely limited to a single type of therapy.

The Columbia Encyclopedia, 6th ed. Copyright© 2018, The Columbia University Press.

Speech Disorders: Selected full-text books and articles

Treatment of Severe Childhood Apraxia of Speech: A Treatment Efficacy Study By Strand, Edythe A.; Stoeckel, Ruth; Baas, Becky Journal of Medical Speech - Language Pathology, Vol. 14, No. 4, December 2006
Impact of Prosodic Strategies on Vowel Intelligiblity in Childhood Motor Speech Impairment By Connaghan, Kathryn P.; Patel, Rupal Journal of Medical Speech - Language Pathology, Vol. 20, No. 4, December 2012
Classification of Developmental Language Disorders: Theoretical Issues and Clinical Implications By Ludo Verhoeven; Hans Van Balkom Lawrence Erlbaum Associates, 2004
Librarian's tip: Chap. 7 "Speech Output Disorders" and Chap. 17 "Benefits of Speech Manipulation for Children with Langauge Disorders"
Advanced Abnormal Child Psychology By Michel Hersen; Robert T. Ammerman Lawrence Erlbaum Associates, 2000 (2nd edition)
Librarian's tip: Chap. 18 "Learning, Motor, and Communication Disorders"
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