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Effect of Exogenous Cues on Covert Spatial Orienting in Deaf and Normal Hearing Individuals
Deaf individuals have been known to process visual stimuli better at the periphery compared to the normal hearing population. However, very few studies have examined attention orienting in the oculomotor domain in the deaf, particularly when targets appear at variable eccentricity. In this study, we...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4627766/ https://www.ncbi.nlm.nih.gov/pubmed/26517363 http://dx.doi.org/10.1371/journal.pone.0141324 |
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author | Prasad, Seema Gorur Patil, Gouri Shanker Mishra, Ramesh Kumar |
author_facet | Prasad, Seema Gorur Patil, Gouri Shanker Mishra, Ramesh Kumar |
author_sort | Prasad, Seema Gorur |
collection | PubMed |
description | Deaf individuals have been known to process visual stimuli better at the periphery compared to the normal hearing population. However, very few studies have examined attention orienting in the oculomotor domain in the deaf, particularly when targets appear at variable eccentricity. In this study, we examined if the visual perceptual processing advantage reported in the deaf people also modulates spatial attentional orienting with eye movement responses. We used a spatial cueing task with cued and uncued targets that appeared at two different eccentricities and explored attentional facilitation and inhibition. We elicited both a saccadic and a manual response. The deaf showed a higher cueing effect for the ocular responses than the normal hearing participants. However, there was no group difference for the manual responses. There was also higher facilitation at the periphery for both saccadic and manual responses, irrespective of groups. These results suggest that, owing to their superior visual processing ability, the deaf may orient attention faster to targets. We discuss the results in terms of previous studies on cueing and attentional orienting in deaf. |
format | Online Article Text |
id | pubmed-4627766 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-46277662015-11-06 Effect of Exogenous Cues on Covert Spatial Orienting in Deaf and Normal Hearing Individuals Prasad, Seema Gorur Patil, Gouri Shanker Mishra, Ramesh Kumar PLoS One Research Article Deaf individuals have been known to process visual stimuli better at the periphery compared to the normal hearing population. However, very few studies have examined attention orienting in the oculomotor domain in the deaf, particularly when targets appear at variable eccentricity. In this study, we examined if the visual perceptual processing advantage reported in the deaf people also modulates spatial attentional orienting with eye movement responses. We used a spatial cueing task with cued and uncued targets that appeared at two different eccentricities and explored attentional facilitation and inhibition. We elicited both a saccadic and a manual response. The deaf showed a higher cueing effect for the ocular responses than the normal hearing participants. However, there was no group difference for the manual responses. There was also higher facilitation at the periphery for both saccadic and manual responses, irrespective of groups. These results suggest that, owing to their superior visual processing ability, the deaf may orient attention faster to targets. We discuss the results in terms of previous studies on cueing and attentional orienting in deaf. Public Library of Science 2015-10-30 /pmc/articles/PMC4627766/ /pubmed/26517363 http://dx.doi.org/10.1371/journal.pone.0141324 Text en © 2015 Prasad et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Prasad, Seema Gorur Patil, Gouri Shanker Mishra, Ramesh Kumar Effect of Exogenous Cues on Covert Spatial Orienting in Deaf and Normal Hearing Individuals |
title | Effect of Exogenous Cues on Covert Spatial Orienting in Deaf and Normal Hearing Individuals |
title_full | Effect of Exogenous Cues on Covert Spatial Orienting in Deaf and Normal Hearing Individuals |
title_fullStr | Effect of Exogenous Cues on Covert Spatial Orienting in Deaf and Normal Hearing Individuals |
title_full_unstemmed | Effect of Exogenous Cues on Covert Spatial Orienting in Deaf and Normal Hearing Individuals |
title_short | Effect of Exogenous Cues on Covert Spatial Orienting in Deaf and Normal Hearing Individuals |
title_sort | effect of exogenous cues on covert spatial orienting in deaf and normal hearing individuals |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4627766/ https://www.ncbi.nlm.nih.gov/pubmed/26517363 http://dx.doi.org/10.1371/journal.pone.0141324 |
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