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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© 2012, The Columbia University Press.

Selected full-text books and articles on this topic at Questia

Late-Talking Children
Thomas Sowell. Basic Books, 1997
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Developmental Disorders: Diagnostic Criteria and Clinical Assessment
Stephen R. Hooper; George W. Hynd; Richard E. Mattison. Lawrence Erlbaum Associates, 1992
Librarian’s tip: Chap. 7 "Language and Speech Disorders"
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Stuttering: A Short History of a Curious Disorder
Marcel E. Wingate. Bergin & Garvey, 1997
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Classification of Developmental Language Disorders: Theoretical Issues and Clinical Implications
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"
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Advanced Abnormal Child Psychology
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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Motor and Sensory Processes of Language
Eric Keller; Myrna Gopnik. Lawrence Erlbaum Associates, 1987
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Explorations in Nonverbal and Vocal Behavior
George F. Mahl. Lawrence Erlbaum Associates, 1987
Librarian’s tip: Part II "Explorations in Vocal Behavior"
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Speech Correction: Principles and Methods
C. Van Riper. Prentice-Hall, 1939
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Aphasia in Atypical Populations
Patrick Coppens; Yvan Lebrun; Anna Basso. Lawrence Erlbaum Associates, 1998
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Pragmatic Language Intervention for Children with Language and Emotional/behavioral Disorders
Hyter, Yvette D.; Rogers-Adkinson, Diana L.; Self, Trisha L.; Simmons, Brande Friederich; Jantz, Jennifer. Communication Disorders Quarterly, Vol. 23, No. 1, Fall 2001
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