Clarification of Perceived Phosphenes Positions by tACS considering Electrical Current flow and Exposed Visual Retinae

Manami Kanamaru, Phan Xuan Tan, Eiji Kamioka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Phosphene is a phenomenon that human can perceive a flash of light in the brain when the human's visual pathway is stimulated electrically or magnetically. Therefore, blind people can also perceive phosphenes even though their crystalline lenses are not functioning. There are great hopes that phosphenes can be used as visual information for a walking support system for blind people. However, the phosphenes induction mechanism has not as yet been clarified since the mechanism of the conventional theory is inconsistent with real experimental results in terms of the perceived phosphenes position. In this paper, a new hypothesis on the phosphenes induction mechanism, which focuses on exposed visual retinae and the stimulated area by electrical current, is posited based on the anatomical characteristics of eyeball. Through experimental evaluation, our hypothesis is successfully verified.

Original languageEnglish
Title of host publicationProceedings of 2020 IEEE 8th R10 Humanitarian Technology Conference, R10-HTC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728111100
DOIs
Publication statusPublished - 2020 Dec 1
Event8th IEEE R10 Humanitarian Technology Conference, R10-HTC 2020 - Kuching, Malaysia
Duration: 2020 Dec 12020 Dec 3

Publication series

NameIEEE Region 10 Humanitarian Technology Conference, R10-HTC
Volume2020-December
ISSN (Print)2572-7621

Conference

Conference8th IEEE R10 Humanitarian Technology Conference, R10-HTC 2020
Country/TerritoryMalaysia
CityKuching
Period20/12/120/12/3

Keywords

  • Blind people
  • eye movement
  • phosphene
  • tACS
  • visual retina

ASJC Scopus subject areas

  • Waste Management and Disposal
  • Development
  • Geography, Planning and Development
  • Pollution
  • Renewable Energy, Sustainability and the Environment
  • Environmental Engineering

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