Cue integration for others ' gaze direction in infants and adults

• Project/Area Number: 17K13963
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Experimental psychology
• Research Institution: Ehime University
• Principal Investigator: OTSUKA YUMIKO 愛媛大学, 法文学部, 准教授 (20757645)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 視線知覚 / 輻輳角 / 顔向き / 視線方向 / 幾何学的手がかり / 明暗手がかり / 顔認知 / 情報統合 / 知覚発達

Outline of Final Research Achievements

Using synthetic 3D head and eye models, we examined the relationship between perceived gaze direction and the information within the image eye region across changes in head orientation. Our results showed that the influence of head orientation on the perceived gaze direction is affected by the vergence angle of stimulus faces. Our results provided some evidence suggesting that estimation of the relative iris/pupil position may be achieved through a process of amodal completion of the whole iris behind the eyelid. Investigation of infants preferential looking behavior did not reveal evidence that infants change weighting of gaze cues flexibly depending of the certainty of the available information in the stimuli.

Academic Significance and Societal Importance of the Research Achievements

他者との相互作用において正確に相手の視線方向を知覚する能力は重要な役割を果たしており、どのようにして我々が他者の視線方向をとらえているのか、そのメカニズムを理解する意義は大きい。視線知覚メカニズムを検討するために顔写真や3DCG顔画像を用いた研究では、一般に刺激顔が見つめる対象の位置や刺激顔の向きを実験者が操作して刺激が作成されてきた。本研究は、これらの操作に伴って画像中にどのような変化が生じ、またその変化がどのように知覚される視線方向と対応するのかについての詳細を明らかにした点で意義深く、視線知覚を検討するうえでの刺激顔の輻輳角を考慮することの重要性も明らかにした。

Research Products

• [Int'l Joint Research] The University of New South Wales(オーストラリア)
• [Int'l Joint Research] The University of New South Wales(オーストラリア)
• [Int'l Joint Research] The University of New South Wales(Australia)
• [Journal Article] Influence of head orientation on perceived gaze direction and eye-region information (2018)
  • Author(s): Yumiko Otsuka, Colin W. G. Clifford
  • Journal Title: Journal of Vision Volume: 18 Issue: 12 Pages: 1-22
  • DOI: 10.1167/18.12.15
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Biases in perceiving gaze vergence (2018)
  • Author(s): Nguyen, A. T. T., Palmer, C. J., Otsuka, Y., & Clifford, C. W. G.
  • Journal Title: Journal of Experimental Psychology: General. Volume: 印刷中 Issue: 8 Pages: 1125-1133
  • DOI: 10.1037/xge0000398
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Gaze adaptation induced by the bloodshot illusion (2019)
  • Author(s): Otsuka, Y, Palmer, C, Watanabe, K, Clifford C
  • Organizer: 42nd edition of the European Conference on Visual PerceptionLeuven. (Belgium)
  • Int'l Joint Research
• [Presentation] 充血錯視による視線残効：文化差の検討 (2019)
  • Author(s): 大塚由美子、Colin Palmer、Colin Clifford、渡邉克巳
  • Organizer: 日本基礎心理学会第38回大会（神戸大学）
• [Presentation] How does head orientation influence perceived gaze direction from each of the two eyes? Psychophysical experiments and analysis of geometrical cues in the stimulus eye region. (2018)
  • Author(s): Otsuka Y, Clifford C W G.
  • Organizer: 41st European Conference on Visual Perception
  • Int'l Joint Research
• [Presentation] Do Infants Have Direct Gaze Prior? (2018)
  • Author(s): Yumiko Otsuka
  • Organizer: The 41st Annual Meeting of the Japan Neuroscience Society, Symposium "Neural basis for emergence of individuality and face-body expression"
  • Int'l Joint Research
• [Presentation] 充血錯視画像を用いた視線残効の検討 (2018)
  • Author(s): 大塚由美子、Colin Palmer、Colin Clifford、渡邊克己
  • Organizer: 日本基礎心理学会第37回大会
• [Presentation] 単眼・両眼からの視線知覚と視線方向手掛かりに対する顔向きの影響(2) (2018)
  • Author(s): Yumiko Otsuka, Colin Clifford
  • Organizer: 日本視覚学会2018年冬季大会
• [Presentation] The influence of head orientation on perceived gaze direction and eye region information (2017)
  • Author(s): Yumiko Otsuka, Colin Clifford
  • Organizer: 13th Asia Pacific Conference on Vision
  • Int'l Joint Research
• [Presentation] 単眼・両眼からの視線知覚と視線方向手掛かりに対する顔向きの影響 (2017)
  • Author(s): Yumiko Otsuka, Colin Clifford
  • Organizer: 日本基礎心理学会第36回大会
• [Book] 7章 社会的な注意 （坂田 陽子・日比 優子・河西 哲子（編）注意の生涯発達心理学）(担当:分担執筆, 範囲:pp.85-97) (2020)
  • Author(s): 大塚由美子
  • Total Pages: 13
  • Publisher: ナカニシヤ出版
  • ISBN: 9784779514524
• [Book] 1－30 赤ちゃんは何を好むかー親近性と新奇性 （三浦佳代、河原純一郎（編）美しさと魅力の心理） (担当:分担執筆, 範囲:pp.60-61) (2019)
  • Author(s): 大塚由美子
  • Total Pages: 2
  • Publisher: ミネルヴァ書房
  • ISBN: 4623086593
• [Book] 第4章 顔認知の神経基盤（日本発達心理学会（編）発達科学ハンドブック９ 社会的認知の発達科学） (2018)
  • Author(s): 大塚 由美子
  • Publisher: 新曜社
  • ISBN: 478851575X
• [Book] Development of recognition memory for faces during infancy. In T. Tsukiura & S. Umeda (Eds.) Memory in Social Context: Brain, Mind, and Society (2017)
  • Author(s): Yumiko Otsuka
  • Publisher: Springer
  • ISBN: 9784431565895
• [Remarks] Researchmap.
  • URL: https://researchmap.jp/yumikoot/