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Title
Japanese: 
English:Infants’ sensitivity to vertical disparity for depth perception 
Author
Japanese: 鶴原 亜紀, 金子 寛彦, So Kanazawa, Yumiko Otsuka, Nobu Shirai, Masami K. Yamaguchi.  
English: Aki Tsuruhara, Hirohiko Kaneko, So Kanazawa, Yumiko Otsuka, Nobu Shirai, Masami K. Yamaguchi.  
Language English 
Journal/Book name
Japanese: 
English:Optical Review 
Volume, Number, Page Vol. 20    No. 3    pp. 277-281
Published date June 1, 2013 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
DOI https://doi.org/10.1007/s10043-013-0050-1
Abstract Both horizontal and vertical binocular disparities produce depth perception in adults. In developmental studies, infants aged around 4 to 6 months were shown to perceive depth from horizontal disparity. However, infants’ sensitivity to vertical disparity has not been shown clearly. To examine the sensitivity in infants, this study measured preferential looking behavior of infants aged 20 to 27 weeks. Results showed a significant preference for the stimulus with vertical disparity, providing the first evidence of infants’ sensitivity to vertical disparity. The infants in the same age group did not show preference for stimulus with horizontal disparity when the stimulus were comparable to the stimulus with vertical disparity, while their sensitivity to horizontal disparity was confirmed with the stimuli used in a previous study. Our results would suggest that properties in processing horizontal and vertical disparities are different in infancy, and that the sensitivity to horizontal disparity are still premature in 27 weeks after birth. Optical Review Optical Review Look Inside Share Share this content on Facebook Share this content on Twitter Share this content on LinkedIn Other actions Export citations Register for Journal Updates About This Journal Reprints and Permissions

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