The Sound of Scotoma: Audio Space Representation Reorganization in Individuals With Macular Degeneration.
PRL
audio-space representation
macular degeneration
multi-sensory integration
scotoma
Journal
Frontiers in integrative neuroscience
ISSN: 1662-5145
Titre abrégé: Front Integr Neurosci
Pays: Switzerland
ID NLM: 101477950
Informations de publication
Date de publication:
2019
2019
Historique:
received:
08
03
2019
accepted:
05
08
2019
entrez:
5
9
2019
pubmed:
5
9
2019
medline:
5
9
2019
Statut:
epublish
Résumé
Blindness is an ideal condition to study the role of visual input on the development of spatial representation, as studies have shown how audio space representation reorganizes in blindness. However, how spatial reorganization works is still unclear. A limitation of the study on blindness is that it is a "stable" system and it does not allow for studying the mechanisms that subtend the progress of this reorganization. To overcome this problem here we study, for the first time, audio spatial reorganization in 18 adults with macular degeneration (MD) for which the loss of vision due to scotoma is an ongoing progressive process. Our results show that the loss of vision produces immediate changes in the processing of spatial audio signals. In individuals with MD, the lateral sounds are "attracted" toward the central scotoma position resulting in a strong bias in the spatial auditory percept. This result suggests that the reorganization of audio space representation is a fast and plastic process occurring also later in life, after vision loss.
Identifiants
pubmed: 31481884
doi: 10.3389/fnint.2019.00044
pmc: PMC6710446
doi:
Types de publication
Journal Article
Langues
eng
Pagination
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