| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
Perceiving three-dimensional (3D) shapes involves computing spatial derivatives of depth, which can be derived from both monocular and binocular disparity cues. The processing of 3D shape from shading, texture, motion or binocular disparity overlaps in many regions of inferior temporal and parietal cortex, suggesting that the respective visual cues interact in the extraction of 3D shape. We assessed 3D shape perception in normal and strabismus subjects. Our results showed that strabismus subjects with reduced or no binocular stereopsis poorly perceived three-dimensional shapes, defined by the monocular cues of shading or texture. Binocular stereopsis is essential for fine perception of 3D shape, even when defined by monocular static cues. Interaction between these cues may occur in ventral occipito-temporal regions. Our findings demonstrate the perceptual benefit of binocular stereopsis in strabismus patients.
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