Individual differences in visual perception and visual cognition caused by the difference in inter-ocular distance.

2017 Fiscal Year Final Research Report

• Project/Area Number: 26870590
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Cognitive science; Experimental psychology
• Research Institution: Keio University (2016-2017); Taisho University (2014-2015)
• Principal Investigator: TAYA Shuichiro 慶應義塾大学, 法学部(日吉), 講師 (80401933)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 奥行き知覚 / 立体視 / 錯視 / 個人差 / 両眼間距離 / 瞳孔間距離 / 奥行き手がかり / ３D

Outline of Final Research Achievements

The role of the body in visual information processing was examined by psychophysical experiments. The results revealed that our visual system uses the information of the inter-ocular/inter-pupil distance to comprehend the depth (3D structure) of the external world based on binocular retinal disparity. It was also found that the body’s movement range restricts the function of constancy scaling, which leads to a distortion in the appearance of the body shape. These results suggest that our body plays an important role as a framework for interpreting ambiguous retinal images, and thus, it is important for studies of visual perception to take the influence of the body into consideration.

Free Research Field

実験心理学（知覚・認知）