Performance of dyslexic children on speech perception tests

Impaired Speech Perception in Poor Readers: Evidence from Hearing and Speech Reading

“…Godfrey et al (1981) used synthetic stop consonant continua varying in place of articulation (/ba/-/da/ and /da/-/ga/) and found that poor readers were less consistent in the identification of the stimuli as their identification slopes were less steep than those of the better readers. The same findings were obtained independently by Werker and Tees (1987) and Reed (1989).…”

“…In a preliminary report of the data presented below we also found impairments in speech processing (de Gelder & Vroomen, 1988). The latter study, like the ones by Godfrey et al (1981), Werker andTees (1987), andDe Weirdt (1988), used a categorical speech perception paradigm. So did Irasquin and de Gelder (1997) in a study that found impaired perception for a place of articulation continuum.…”

Development of structure and function in the infant brain: Implications for cognition, language and social behaviour

“…Across laboratories, research investigating basic auditory processing in individuals with specific language impairment (SLI) or dyslexia suggests that impaired perception and discrimination of auditory stimuli involving two or more rapidly presented transient elements hinders the development of normal language and reading abilities (Tallal and Piercy, 1974;Godfrey et al, 1981;Werker and Tees, 1987;Snowling et al, 1986;Stark and Heinz, 1996;McAnally and Stein, 1997). Further, several studies have suggested that efficient rapid auditory processing (RAP) ability is important for later language skill; performance on RAP tasks in infancy have been shown to relate to later language performance, both in normally developing infants and in those with a family history of language impairment (Benasich and Tallal, 2002;Molfese and Molfese, 1997;Trehub and Henderson, 1996).…”

Auditory word identification in dyslexic and normally achieving readers

“…However, an isolated phoneme categorization problem alone is unlikely to be the sole explanation for reading problems among dyslexic children. Although several studies have reported categorical speech perception deficits in dyslexics as a group (Chiappe, Chiappe, & Siegel, 2001;Godfrey, Syrdal-Lasky, Millay, & Knox, 1981;Maassen, Groenen, Crul, Assman-Hulsmans, & Gabreëls, 2001;Reed, 1989;Serniclaes, SprengerCharolles, Carré, & Demonet, 2001;Werker & Tees, 1987), many individual dyslexics show normal speech perception (Adlard & Hazan, 1998;Joanisse, Manis, Keating, & Seidenberg, 2000;Manis & Keating, 2005;Manis et al, 1997;Pennington, Van Orden, Smith, Green, & Haith, 1990;Ramus et al, 2003).…”