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Speech-perception-in-noise deficits in dyslexia.
Dev Sci. 2009 Sep; 12(5):732-45.DS

Abstract

Speech perception deficits in developmental dyslexia were investigated in quiet and various noise conditions. Dyslexics exhibited clear speech perception deficits in noise but not in silence. Place-of-articulation was more affected than voicing or manner-of-articulation. Speech-perception-in-noise deficits persisted when performance of dyslexics was compared to that of much younger children matched on reading age, underscoring the fundamental nature of speech-perception-in-noise deficits. The deficits were not due to poor spectral or temporal resolution because dyslexics exhibited normal 'masking release' effects (i.e. better performance in fluctuating than in stationary noise). Moreover, speech-perception-in-noise predicted significant unique variance in reading even after controlling for low-level auditory, attentional, speech output, short-term memory and phonological awareness processes. Finally, the presence of external noise did not seem to be a necessary condition for speech perception deficits to occur because similar deficits were obtained when speech was degraded by eliminating temporal fine-structure cues without using external noise. In conclusion, the core deficit of dyslexics seems to be a lack of speech robustness in the presence of external or internal noise.

Authors+Show Affiliations

Département de Psychologie, Aix-Marseille Université, Marseille, France. Johannes.Ziegler@univ-provence.frNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19702766

Citation

Ziegler, Johannes C., et al. "Speech-perception-in-noise Deficits in Dyslexia." Developmental Science, vol. 12, no. 5, 2009, pp. 732-45.
Ziegler JC, Pech-Georgel C, George F, et al. Speech-perception-in-noise deficits in dyslexia. Dev Sci. 2009;12(5):732-45.
Ziegler, J. C., Pech-Georgel, C., George, F., & Lorenzi, C. (2009). Speech-perception-in-noise deficits in dyslexia. Developmental Science, 12(5), 732-45. https://doi.org/10.1111/j.1467-7687.2009.00817.x
Ziegler JC, et al. Speech-perception-in-noise Deficits in Dyslexia. Dev Sci. 2009;12(5):732-45. PubMed PMID: 19702766.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Speech-perception-in-noise deficits in dyslexia. AU - Ziegler,Johannes C, AU - Pech-Georgel,Catherine, AU - George,Florence, AU - Lorenzi,Christian, PY - 2009/8/26/entrez PY - 2009/8/26/pubmed PY - 2009/11/3/medline SP - 732 EP - 45 JF - Developmental science JO - Dev Sci VL - 12 IS - 5 N2 - Speech perception deficits in developmental dyslexia were investigated in quiet and various noise conditions. Dyslexics exhibited clear speech perception deficits in noise but not in silence. Place-of-articulation was more affected than voicing or manner-of-articulation. Speech-perception-in-noise deficits persisted when performance of dyslexics was compared to that of much younger children matched on reading age, underscoring the fundamental nature of speech-perception-in-noise deficits. The deficits were not due to poor spectral or temporal resolution because dyslexics exhibited normal 'masking release' effects (i.e. better performance in fluctuating than in stationary noise). Moreover, speech-perception-in-noise predicted significant unique variance in reading even after controlling for low-level auditory, attentional, speech output, short-term memory and phonological awareness processes. Finally, the presence of external noise did not seem to be a necessary condition for speech perception deficits to occur because similar deficits were obtained when speech was degraded by eliminating temporal fine-structure cues without using external noise. In conclusion, the core deficit of dyslexics seems to be a lack of speech robustness in the presence of external or internal noise. SN - 1467-7687 UR - https://www.unboundmedicine.com/medline/citation/19702766/Speech_perception_in_noise_deficits_in_dyslexia_ L2 - https://doi.org/10.1111/j.1467-7687.2009.00817.x DB - PRIME DP - Unbound Medicine ER -