Development of visual function visualization system during narrowed visual field for walking support

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K20331
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 61020:Human interface and interaction-related
• Research Institution: Mukogawa Women's University
• Principal Investigator: Enami Naoko 武庫川女子大学, 生活環境学部, 講師 (80628925)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 視野狭窄 / 歩行実験 / ながら歩き

Outline of Final Research Achievements

Walking while using a smartphone narrows the field of vision, causing a serious accident. In addition, the number of people with narrowed visual field due to diseases is increasing with the aging of the population.

In this study, we worked on two things to build a mechanism to support safe walking. In 2019, we conducted a subject experiment using a large-scale VR device to clarify the functions of walking and visual function when the visual field is narrowed. In 2020, the research was suspended due to taking maternity leave. In 2021, in order to visualize the spatial grasping function of the subjects, it was clarified that there was a significant difference between walking and normal times while comparing the experimental results using the X-square test.

Free Research Field

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Academic Significance and Societal Importance of the Research Achievements

IoT時代が到来するといわれる現代において，情報提示をどのように行うかは重要な課題である．画面を見る必要のあるデバイスを利用する場合，周囲に対する注意が低下することは自明ではあるが，その注意がどのように低下するのか，またどのような危険性があるのかは明らかではない．本研究はそれらを明らかにする最初の事例となる．さらに，既存の歩きスマホを対象とした歩行機能や知覚機能を計測するシステムは足元知覚を考慮していない．これは，足元や任意の場所に知覚対象を提示することが困難であったためである．本研究では国内外でも類を見ない大規模な没入型VR装置を用いることで，歩行中の足元への仮想刺激の提示を実現する．