Psychological and brain scientific research on the mechanism generating rich subjective impression of scenes

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K12574
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 90030:Cognitive science-related
• Research Institution: Tohoku University
• Principal Investigator: Kawachi Yousuke 東北大学, 文学研究科, 准教授 (20565775)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: シーン知覚 / シーン記憶 / 画像統計量 / 心理物理学

Outline of Final Research Achievements

How does the visual system with a limited number of objects that can be processed simultaneously produce the perception of a vibrant scene filled with many objects? We developed experimental research to understand the scene information process and obtained the following findings. (1)Scene perception is not generated all at once across the entire visual field but is gradually generated from the central to the peripheral visual fields. (2) Scene information processing is facilitated by auditory information congruent with the visual scene information, even in scene category judgment tasks in which visual information alone is sufficient. (3) The spatial resolution of the scene in the memory is reconstructed higher than the resolution of the original scene images. (4) The memory for the central chromatic region of the scene images is replayed in a way in which the region is expanded to the periphery.

Free Research Field

実験心理学

Academic Significance and Societal Importance of the Research Achievements

視覚系の情報処理における限界と我々の主観的に彩り豊かなシーン体験の乖離に関する理解を深めることは，運転行動等の瞬時判断が要求される作業場面での行動指針の提案、円滑な日常行動を促す環境をデザインする人間工学分野にも新たな視点の提供が期待できる。またAI(artificial intelligence)によりヒトの知覚認知を予測する際に、シーンに関わる情報種・量の制約条件を明らかにすることで計算負荷の大幅な削減ができる可能性がある。ヒトの知覚体験の限界を拡張するAR(augmented reality)技術に関連して、シーン知覚を豊かな体験に昇華させる条件を知ることは新たな価値創造のシーズとなる。