Establishment of wind sensory presentation platform and wind perception mechanisms through cross-modal effects.

2023 Fiscal Year Final Research Report

• Project/Area Number: 22K19805
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 61:Human informatics and related fields
• Research Institution: The University of Tokyo
• Principal Investigator: Warisawa Shinichi 東京大学, 大学院新領域創成科学研究科, 教授 (20262321)
• Co-Investigator(Kenkyū-buntansha): 伴 祐樹 東京大学, 大学院新領域創成科学研究科, 特任講師 (20789391)
• Project Period (FY): 2022-06-30 – 2024-03-31
• Keywords: クロスモーダル効果 / バーチャルリアリティ / 風覚ディスプレイ / 少数風源 / リラックス

Outline of Final Research Achievements

A method to change wind perception using cross-modal effects of the senses is proposed, and it is shown that changes in psychological states such as wind impressions and emotions can also be achieved through cross-modal effects. It was shown that the perception of wind direction can be changed by using images and stereophonic sounds that remind the user of the wind direction, and that the effect is maximised by combining audiovisual information. It was shown that wind speed is perceived faster than it actually is by a wearable device that evokes the swaying of clothing. Shown that wind temperature perception was altered by colouring virtual video objects and avatars to evoke temperature. Virtual images and sounds simulating an outdoor meadow improved impressions and emotions from wind, and air currents simulating natural winds reduced mental stress.

Free Research Field

人間環境情報学

Academic Significance and Societal Importance of the Research Achievements

風向、風速、風温、および風の印象に関する知覚がクロスモーダル効果によって変化することを示し、また、風覚の様々な側面における多感覚の相互作用を検証し、多感覚刺激の設計方針を整理したことの学術的な意義は極めて大きい。風の発生や作用を間接的に想起させる多感覚刺激の設計方針は、身体やアバタ、風そのもの、風源、周囲環境などバーチャル環境の様々な部分に適用でき、風感覚の変化を活用した簡易な装置による風覚ディスプレイの実現に繋がり、幅広いVRコンテンツの風感覚活用促進や風の快適性が重視される空調やリラクゼーション分野での活用など、産業応用上重要な知見を与えている。