Design of Electrode Placement for Presenting Phosphenes in the Lower Visual Field Based on Electric Field Simulation

Presenting visual information, called phosphenes, is a critical method for providing information on the position of obstacles for users of walking support tools for the visually impaired. A previous study has established a method for presenting phosphenes to the right, center, and left of the visual...

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Autores principales:	Manami Kanamaru, Phan Xuan Tan, Eiji Kamioka
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	visually impaired people phosphene walking support tool eyeball surface FEM Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/36468a18e2c145bc83e76cb4c9a04e19
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id	oai:doaj.org-article:36468a18e2c145bc83e76cb4c9a04e19
record_format	dspace
spelling	oai:doaj.org-article:36468a18e2c145bc83e76cb4c9a04e192021-11-25T16:42:12ZDesign of Electrode Placement for Presenting Phosphenes in the Lower Visual Field Based on Electric Field Simulation10.3390/app1122109722076-3417https://doaj.org/article/36468a18e2c145bc83e76cb4c9a04e192021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10972https://doaj.org/toc/2076-3417Presenting visual information, called phosphenes, is a critical method for providing information on the position of obstacles for users of walking support tools for the visually impaired. A previous study has established a method for presenting phosphenes to the right, center, and left of the visual field. However, a method for presenting information on the position of obstacles around the feet using phosphenes, which is essential for the visually impaired, has not been clarified. Therefore, in this study, a method for presenting phosphenes in the lower visual field is presented, towards the aim of realizing a safe walking support tool. Electrode placement is proposed in this paper for the presentation of phosphenes to the right, center, and left of the lower visual field based on the electrode placement method used in the previous study, which presents the phosphene in three locations of the visual field. In addition, electric field simulation is performed, focusing on the electric field value on the eyeball surface, in order to observe whether the proposed electrode placement is able to stimulate the intended region. As a result, it is shown that the intended region on the eyeball surface can be stimulated locally with each of the proposed electrode placements.Manami KanamaruPhan Xuan TanEiji KamiokaMDPI AGarticlevisually impaired peoplephosphenewalking support tooleyeball surfaceFEMTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10972, p 10972 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	visually impaired people phosphene walking support tool eyeball surface FEM Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	visually impaired people phosphene walking support tool eyeball surface FEM Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Manami Kanamaru Phan Xuan Tan Eiji Kamioka Design of Electrode Placement for Presenting Phosphenes in the Lower Visual Field Based on Electric Field Simulation
description	Presenting visual information, called phosphenes, is a critical method for providing information on the position of obstacles for users of walking support tools for the visually impaired. A previous study has established a method for presenting phosphenes to the right, center, and left of the visual field. However, a method for presenting information on the position of obstacles around the feet using phosphenes, which is essential for the visually impaired, has not been clarified. Therefore, in this study, a method for presenting phosphenes in the lower visual field is presented, towards the aim of realizing a safe walking support tool. Electrode placement is proposed in this paper for the presentation of phosphenes to the right, center, and left of the lower visual field based on the electrode placement method used in the previous study, which presents the phosphene in three locations of the visual field. In addition, electric field simulation is performed, focusing on the electric field value on the eyeball surface, in order to observe whether the proposed electrode placement is able to stimulate the intended region. As a result, it is shown that the intended region on the eyeball surface can be stimulated locally with each of the proposed electrode placements.
format	article
author	Manami Kanamaru Phan Xuan Tan Eiji Kamioka
author_facet	Manami Kanamaru Phan Xuan Tan Eiji Kamioka
author_sort	Manami Kanamaru
title	Design of Electrode Placement for Presenting Phosphenes in the Lower Visual Field Based on Electric Field Simulation
title_short	Design of Electrode Placement for Presenting Phosphenes in the Lower Visual Field Based on Electric Field Simulation
title_full	Design of Electrode Placement for Presenting Phosphenes in the Lower Visual Field Based on Electric Field Simulation
title_fullStr	Design of Electrode Placement for Presenting Phosphenes in the Lower Visual Field Based on Electric Field Simulation
title_full_unstemmed	Design of Electrode Placement for Presenting Phosphenes in the Lower Visual Field Based on Electric Field Simulation
title_sort	design of electrode placement for presenting phosphenes in the lower visual field based on electric field simulation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/36468a18e2c145bc83e76cb4c9a04e19
work_keys_str_mv	AT manamikanamaru designofelectrodeplacementforpresentingphosphenesinthelowervisualfieldbasedonelectricfieldsimulation AT phanxuantan designofelectrodeplacementforpresentingphosphenesinthelowervisualfieldbasedonelectricfieldsimulation AT eijikamioka designofelectrodeplacementforpresentingphosphenesinthelowervisualfieldbasedonelectricfieldsimulation
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Design of Electrode Placement for Presenting Phosphenes in the Lower Visual Field Based on Electric Field Simulation

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