Explain Several Different Theories of Speech Sound Disorder. Essay

1368 WordsNov 20, 20146 Pages
Department Of Psychology Developmental Disorders & Exceptional Talents: Neuropsychology, Neuroscience & Cognition Coursework Essay Explain several different theories of speech sound disorder. Date: 07/11/2014 Word count: 1138 Speech and language disorder describes abnormal language development. Delayed speech or language development is the most common developmental problem. Children with specific language impairment (SLI) very seldom show a homogeneous delay in language acquisition (Parisse & Maillart, 2009). It affects five to ten percent of preschool kids. Developmental speech and language disorder is a common reason for speech/language problems in kids. This is a learning disability that is caused by the brain working differently. These kids may have trouble producing speech sounds, using spoken language to communicate, or understanding what other people say. Speech and language problems are often the earliest sign of a learning disability. In order to understand developmental disorders of phonological discrimination we should take a deeper insight into theoretical background by Tallal (1980), Bird and Bishop (1992) and Chiat (2001). Although theories mainly focus on phonological disorders but they are not mutually exclusive: Tallal (1980) addressed issues in auditory temporal processing, while Bird and Bishop (1992) highlighted problems in constancy of phonemes across words and Chiat (2001) provided with mapping theory. Tallal and Piercy (1973, 1974, 1975) compared dysphasic children with normal controls on tests of discrimination and temporal order judgment (TOJ) for pairs of stimuli presented with "long" (428 msec) and "short" (8-305 msec) interstimulus intervals (lSI). The stimuli included (1) short (75 msec) and long (250 msec) complex tones differing in fundamental frequency (100 vs.

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