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Anales de Psicología

On-line version ISSN 1695-2294Print version ISSN 0212-9728


ORTIZ, Rosario; ESTEVEZ, Adelina  and  MUNETON, Mercedes. Temporal processing in speech perception of children with dyslexia. Anal. Psicol. [online]. 2014, vol.30, n.2, pp.716-724. ISSN 1695-2294.

Numerous studies show that a phonological deficit causes dyslexia, but the origin of this deficit remains a controversial issue. The present study examines whether perceptual phonological deficit in children with dyslexia can be explained by a temporal processing deficit with a design that controls the demands of the task and linguistic complexity and temporal of contrasts between speech sounds. Thirteen children with dyslexia and phonological deficits (9-11 years) and 13 age-matched normal readers were assessed on temporal order judgment tasks (TOJ) and samedifferent discrimination tasks (S-D). The tasks are based on contrasts of the syllables / ba / -/da / and / fa/-/ la /. We analyze the effects of the complexity of the stimuli (similar versus no similar) and the task (temporal order judgment tasks versus discrimination tasks). The children with dyslexia showed lower performance than the control group in both pairs of syllables. The performance of children with dyslexia in the TOJ tasks was significantly lower than the control group but no differences between groups in the S-D tasks were found. The findings are discussed in terms of temporal processing problems in speech perception in children with dyslexia.

Keywords : Dyslexia; speech perception; temporal processing; rapid auditory processing; phonological deficit.

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