Auditory speed processing in sighted and blind individuals.

Multisensory experience is crucial for developing a coherent perception of the world. In this context, vision and audition are essential tools to scaffold spatial and temporal representations, respectively. Since speed encompasses both space and time, investigating this dimension in blindness allows...

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Autores principales:	Giorgia Bertonati, Maria Bianca Amadeo, Claudio Campus, Monica Gori
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b27a5e142115427a8e064a395ff82f58
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id	oai:doaj.org-article:b27a5e142115427a8e064a395ff82f58
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spelling	oai:doaj.org-article:b27a5e142115427a8e064a395ff82f582021-12-02T20:08:06ZAuditory speed processing in sighted and blind individuals.1932-620310.1371/journal.pone.0257676https://doaj.org/article/b27a5e142115427a8e064a395ff82f582021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0257676https://doaj.org/toc/1932-6203Multisensory experience is crucial for developing a coherent perception of the world. In this context, vision and audition are essential tools to scaffold spatial and temporal representations, respectively. Since speed encompasses both space and time, investigating this dimension in blindness allows deepening the relationship between sensory modalities and the two representation domains. In the present study, we hypothesized that visual deprivation influences the use of spatial and temporal cues underlying acoustic speed perception. To this end, ten early blind and ten blindfolded sighted participants performed a speed discrimination task in which spatial, temporal, or both cues were available to infer moving sounds' velocity. The results indicated that both sighted and early blind participants preferentially relied on temporal cues to determine stimuli speed, by following an assumption that identified as faster those sounds with a shorter duration. However, in some cases, this temporal assumption produces a misperception of the stimulus speed that negatively affected participants' performance. Interestingly, early blind participants were more influenced by this misleading temporal assumption than sighted controls, resulting in a stronger impairment in the speed discrimination performance. These findings demonstrate that the absence of visual experience in early life increases the auditory system's preference for the time domain and, consequentially, affects the perception of speed through audition.Giorgia BertonatiMaria Bianca AmadeoClaudio CampusMonica GoriPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 9, p e0257676 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Giorgia Bertonati Maria Bianca Amadeo Claudio Campus Monica Gori Auditory speed processing in sighted and blind individuals.
description	Multisensory experience is crucial for developing a coherent perception of the world. In this context, vision and audition are essential tools to scaffold spatial and temporal representations, respectively. Since speed encompasses both space and time, investigating this dimension in blindness allows deepening the relationship between sensory modalities and the two representation domains. In the present study, we hypothesized that visual deprivation influences the use of spatial and temporal cues underlying acoustic speed perception. To this end, ten early blind and ten blindfolded sighted participants performed a speed discrimination task in which spatial, temporal, or both cues were available to infer moving sounds' velocity. The results indicated that both sighted and early blind participants preferentially relied on temporal cues to determine stimuli speed, by following an assumption that identified as faster those sounds with a shorter duration. However, in some cases, this temporal assumption produces a misperception of the stimulus speed that negatively affected participants' performance. Interestingly, early blind participants were more influenced by this misleading temporal assumption than sighted controls, resulting in a stronger impairment in the speed discrimination performance. These findings demonstrate that the absence of visual experience in early life increases the auditory system's preference for the time domain and, consequentially, affects the perception of speed through audition.
format	article
author	Giorgia Bertonati Maria Bianca Amadeo Claudio Campus Monica Gori
author_facet	Giorgia Bertonati Maria Bianca Amadeo Claudio Campus Monica Gori
author_sort	Giorgia Bertonati
title	Auditory speed processing in sighted and blind individuals.
title_short	Auditory speed processing in sighted and blind individuals.
title_full	Auditory speed processing in sighted and blind individuals.
title_fullStr	Auditory speed processing in sighted and blind individuals.
title_full_unstemmed	Auditory speed processing in sighted and blind individuals.
title_sort	auditory speed processing in sighted and blind individuals.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/b27a5e142115427a8e064a395ff82f58
work_keys_str_mv	AT giorgiabertonati auditoryspeedprocessinginsightedandblindindividuals AT mariabiancaamadeo auditoryspeedprocessinginsightedandblindindividuals AT claudiocampus auditoryspeedprocessinginsightedandblindindividuals AT monicagori auditoryspeedprocessinginsightedandblindindividuals
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Auditory speed processing in sighted and blind individuals.

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