Auditory Temporal Processing as a Specific Deficit among Dyslexic Readers

Autor/inn/en	Fostick, Leah; Bar-El, Sharona; Ram-Tsur, Ronit
Titel	Auditory Temporal Processing as a Specific Deficit among Dyslexic Readers
Quelle	2 (2012) 2, S.77-88 (12 Seiten)Infoseite zur Zeitschrift PDF als Volltext kostenfreie Datei Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	2159-5542
Schlagwörter	Dyslexia; Visual Stimuli; Reading Difficulties; Auditory Perception; Short Term Memory; Adults; Auditory Stimuli; Comparative Analysis; Language Processing; Phonology; Correlation; Feedback (Response); Auditory Discrimination; Perceptual Impairments; Cognitive Processes; Foreign Countries; Israel; Wechsler Adult Intelligence Scale + Suchen Sie Ihr Suchwort? Dyslexics; Legasthenie; Lese-Rechtschreib-Schwäche; Reading difficulty; Leseschwierigkeit; Auditive Wahrnehmung; Akustische Wahrnehmung; Akustik; Kurzzeitgedächtnis; Auditive Stimulation; Sprachverarbeitung; Fonologie; Korrelation; Perceptual handicaps; Wahrnehmungsstörung; Cognitive process; Kognitiver Prozess; Ausland
Abstract	The present study focuses on examining the hypothesis that auditory temporal perception deficit is a basic cause for reading disabilities among dyslexics. This hypothesis maintains that reading impairment is caused by a fundamental perceptual deficit in processing rapid auditory or visual stimuli. Since the auditory perception involves a number of mechanisms and temporal processing is only one of them, in the current paper, we tested, in addition to auditory temporal processing, also auditory intensity and spectral processing among dyslexic and normal readers. In addition, we examined whether poor performance of dyslexic readers in auditory temporal processing tasks results from a difficulty in working memory, by testing differences in auditory processing, controlling for working memory. Thirty-seven adult dyslexic readers and 40 adult normal readers performed a battery of tests measuring auditory temporal processing (gap detection and dichotic temporal order judgment), auditory intensity processing (absolute threshold and intensity discrimination), auditory spectral processing (spectral temporal order judgment) and working memory (backward digit span). Performance on auditory spectral and temporal processing task was poorer among dyslexic readers, as compared to normal readers, even after controlling for working memory, but no difference was found in intensity processing tasks. These results suggest that dyslexic readers exhibit a specific deficit in auditory temporal processing, which cannot be attributed either to general perceptual deficit in auditory processing, or to working memory. (Contains 2 tables, 3 figures, and 1 footnote.) (As Provided).
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10