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Impaired encoding of rapid pitch information underlies perception and memory deficits in congenital amusia

Recent theories suggest that the basis of neurodevelopmental auditory disorders such as dyslexia or specific language impairment might be a low-level sensory dysfunction. In the present study we test this hypothesis in congenital amusia, a neurodevelopmental disorder characterized by severe deficits...

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Autores principales: Albouy, Philippe, Cousineau, Marion, Caclin, Anne, Tillmann, Barbara, Peretz, Isabelle
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4702148/
https://www.ncbi.nlm.nih.gov/pubmed/26732511
http://dx.doi.org/10.1038/srep18861
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author Albouy, Philippe
Cousineau, Marion
Caclin, Anne
Tillmann, Barbara
Peretz, Isabelle
author_facet Albouy, Philippe
Cousineau, Marion
Caclin, Anne
Tillmann, Barbara
Peretz, Isabelle
author_sort Albouy, Philippe
collection PubMed
description Recent theories suggest that the basis of neurodevelopmental auditory disorders such as dyslexia or specific language impairment might be a low-level sensory dysfunction. In the present study we test this hypothesis in congenital amusia, a neurodevelopmental disorder characterized by severe deficits in the processing of pitch-based material. We manipulated the temporal characteristics of auditory stimuli and investigated the influence of the time given to encode pitch information on participants’ performance in discrimination and short-term memory. Our results show that amusics’ performance in such tasks scales with the duration available to encode acoustic information. This suggests that in auditory neuro-developmental disorders, abnormalities in early steps of the auditory processing can underlie the high-level deficits (here musical disabilities). Observing that the slowing down of temporal dynamics improves amusics’ pitch abilities allows considering this approach as a potential tool for remediation in developmental auditory disorders.
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spelling pubmed-47021482016-01-14 Impaired encoding of rapid pitch information underlies perception and memory deficits in congenital amusia Albouy, Philippe Cousineau, Marion Caclin, Anne Tillmann, Barbara Peretz, Isabelle Sci Rep Article Recent theories suggest that the basis of neurodevelopmental auditory disorders such as dyslexia or specific language impairment might be a low-level sensory dysfunction. In the present study we test this hypothesis in congenital amusia, a neurodevelopmental disorder characterized by severe deficits in the processing of pitch-based material. We manipulated the temporal characteristics of auditory stimuli and investigated the influence of the time given to encode pitch information on participants’ performance in discrimination and short-term memory. Our results show that amusics’ performance in such tasks scales with the duration available to encode acoustic information. This suggests that in auditory neuro-developmental disorders, abnormalities in early steps of the auditory processing can underlie the high-level deficits (here musical disabilities). Observing that the slowing down of temporal dynamics improves amusics’ pitch abilities allows considering this approach as a potential tool for remediation in developmental auditory disorders. Nature Publishing Group 2016-01-06 /pmc/articles/PMC4702148/ /pubmed/26732511 http://dx.doi.org/10.1038/srep18861 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Albouy, Philippe
Cousineau, Marion
Caclin, Anne
Tillmann, Barbara
Peretz, Isabelle
Impaired encoding of rapid pitch information underlies perception and memory deficits in congenital amusia
title Impaired encoding of rapid pitch information underlies perception and memory deficits in congenital amusia
title_full Impaired encoding of rapid pitch information underlies perception and memory deficits in congenital amusia
title_fullStr Impaired encoding of rapid pitch information underlies perception and memory deficits in congenital amusia
title_full_unstemmed Impaired encoding of rapid pitch information underlies perception and memory deficits in congenital amusia
title_short Impaired encoding of rapid pitch information underlies perception and memory deficits in congenital amusia
title_sort impaired encoding of rapid pitch information underlies perception and memory deficits in congenital amusia
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4702148/
https://www.ncbi.nlm.nih.gov/pubmed/26732511
http://dx.doi.org/10.1038/srep18861
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