Speech perception and phonological short-term memory capacity in language impairment: preliminary evidence from adolescents with specific language impairment (SLI) and autism spectrum disorders (ASD).

International Journal of Language & Communication Disorders
T LoucasGillian Baird

Abstract

The cognitive bases of language impairment in specific language impairment (SLI) and autism spectrum disorders (ASD) were investigated in a novel non-word comparison task which manipulated phonological short-term memory (PSTM) and speech perception, both implicated in poor non-word repetition. This study aimed to investigate the contributions of PSTM and speech perception in non-word processing and whether individuals with SLI and ASD plus language impairment (ALI) show similar or different patterns of deficit in these cognitive processes. Three groups of adolescents (aged 14-17 years), 14 with SLI, 16 with ALI, and 17 age and non-verbal IQ matched typically developing (TD) controls, made speeded discriminations between non-word pairs. Stimuli varied in PSTM load (two- or four-syllables) and speech perception load (mismatches on a word-initial or word-medial segment). Reaction times showed effects of both non-word length and mismatch position and these factors interacted: four-syllable and word-initial mismatch stimuli resulted in the slowest decisions. Individuals with language impairment showed the same pattern of performance as those with typical development in the reaction time data. A marginal interaction between group and...Continue Reading

Citations

Oct 25, 2012·PloS One·Meng-Chuan LaiSimon Baron-Cohen
Oct 26, 2011·International Journal of Speech-language Pathology·Maggie Vance, Nicola Martindale
Mar 19, 2016·International Journal of Language & Communication Disorders·Tom LoucasVicky Slonims
Dec 4, 2014·International Journal of Pediatric Otorhinolaryngology·Safinaz Nagib Azab, Heba Ashour
Dec 17, 2014·Autism : the International Journal of Research and Practice·F Richard Ferraro
Jun 21, 2017·Journal of Speech, Language, and Hearing Research : JSLHR·Tyler K PerrachioneIoulia Kovelman
Mar 19, 2021·Journal of Autism and Developmental Disorders·Vardan ArutiunianOlga Dragoy

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