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A Protracted Sensitive Period Regulates the Development of Cross-Modal Sound–Shape Associations in Humans
Humans preferentially match arbitrary words containing higher- and lower-frequency phonemes to angular and smooth shapes, respectively. Here, we investigated the role of visual experience in the development of audiovisual and audiohaptic sound–shape associations (SSAs) using a unique set of five gro...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6787766/ https://www.ncbi.nlm.nih.gov/pubmed/31483197 http://dx.doi.org/10.1177/0956797619866625 |
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author | Sourav, Suddha Kekunnaya, Ramesh Shareef, Idris Banerjee, Seema Bottari, Davide Röder, Brigitte |
author_facet | Sourav, Suddha Kekunnaya, Ramesh Shareef, Idris Banerjee, Seema Bottari, Davide Röder, Brigitte |
author_sort | Sourav, Suddha |
collection | PubMed |
description | Humans preferentially match arbitrary words containing higher- and lower-frequency phonemes to angular and smooth shapes, respectively. Here, we investigated the role of visual experience in the development of audiovisual and audiohaptic sound–shape associations (SSAs) using a unique set of five groups: individuals who had suffered a transient period of congenital blindness through congenital bilateral dense cataracts before undergoing cataract-reversal surgeries (CC group), individuals with a history of developmental cataracts (DC group), individuals with congenital permanent blindness (CB group), individuals with late permanent blindness (LB group), and controls with typical sight (TS group). Whereas the TS and LB groups showed highly robust SSAs, the CB, CC, and DC groups did not—in any of the modality combinations tested. These results provide evidence for a protracted sensitive period during which aberrant vision prevents SSA acquisition. Moreover, the finding of a systematic SSA in the LB group demonstrates that representations acquired during the sensitive period are resilient to loss despite dramatically changed experience. |
format | Online Article Text |
id | pubmed-6787766 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-67877662019-10-23 A Protracted Sensitive Period Regulates the Development of Cross-Modal Sound–Shape Associations in Humans Sourav, Suddha Kekunnaya, Ramesh Shareef, Idris Banerjee, Seema Bottari, Davide Röder, Brigitte Psychol Sci Research Articles Humans preferentially match arbitrary words containing higher- and lower-frequency phonemes to angular and smooth shapes, respectively. Here, we investigated the role of visual experience in the development of audiovisual and audiohaptic sound–shape associations (SSAs) using a unique set of five groups: individuals who had suffered a transient period of congenital blindness through congenital bilateral dense cataracts before undergoing cataract-reversal surgeries (CC group), individuals with a history of developmental cataracts (DC group), individuals with congenital permanent blindness (CB group), individuals with late permanent blindness (LB group), and controls with typical sight (TS group). Whereas the TS and LB groups showed highly robust SSAs, the CB, CC, and DC groups did not—in any of the modality combinations tested. These results provide evidence for a protracted sensitive period during which aberrant vision prevents SSA acquisition. Moreover, the finding of a systematic SSA in the LB group demonstrates that representations acquired during the sensitive period are resilient to loss despite dramatically changed experience. SAGE Publications 2019-09-04 2019-10 /pmc/articles/PMC6787766/ /pubmed/31483197 http://dx.doi.org/10.1177/0956797619866625 Text en © The Author(s) 2019 http://creativecommons.org/licenses/by/4.0/ This article is distributed under the terms of the Creative Commons Attribution 4.0 License (http://www.creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
spellingShingle | Research Articles Sourav, Suddha Kekunnaya, Ramesh Shareef, Idris Banerjee, Seema Bottari, Davide Röder, Brigitte A Protracted Sensitive Period Regulates the Development of Cross-Modal Sound–Shape Associations in Humans |
title | A Protracted Sensitive Period Regulates the Development of
Cross-Modal Sound–Shape Associations in Humans |
title_full | A Protracted Sensitive Period Regulates the Development of
Cross-Modal Sound–Shape Associations in Humans |
title_fullStr | A Protracted Sensitive Period Regulates the Development of
Cross-Modal Sound–Shape Associations in Humans |
title_full_unstemmed | A Protracted Sensitive Period Regulates the Development of
Cross-Modal Sound–Shape Associations in Humans |
title_short | A Protracted Sensitive Period Regulates the Development of
Cross-Modal Sound–Shape Associations in Humans |
title_sort | protracted sensitive period regulates the development of
cross-modal sound–shape associations in humans |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6787766/ https://www.ncbi.nlm.nih.gov/pubmed/31483197 http://dx.doi.org/10.1177/0956797619866625 |
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