Parsing visual scenes via dynamic cues(Parsing visual scenes via dynamic cues,Invited Iecture at the 24th Annual Meeting)

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Objects encountered in daily visual experience often consist of regions that differ in color, luminance and shape. The human visual system is adept at binding together these various regions to perceive the whole object, while simultaneously separating them from those that belong to other objects or the background. How this region integration is achieved and how the visual system develops these capabilities is not well understood. We recently had a unique opportunity to investigate this question when we met an individual (SK) in India, who had an unusual visual history. At the time of our meeting, SK was 28 years old and had untreated congenital bilateral aphakia, resulting in highly compromised visual abilities. After providing treatment to SK, we studied the early stages of his visual skills. Specifically, we examined SK's performance on simple image parsing and recognition tasks. We found that prominent Figural cues of grouping, such as good-continuation, junction structure and symmetry, were largely ineffective for image parsing. By contrast, motion cues were of profound significance and played two critical roles in SK's object processing abilities. First, they enabled intra-object integration, and segregation from background. Second, they facilitated the development of object representations which permitted recognition in static images. Together with data from earlier infant studies, these results suggest that motion information plays a fundamental role in organizing early visual experience.
日本基礎心理学会の論文
2006-09-30

Parsing visual scenes via dynamic cues(Parsing visual scenes via dynamic cues,Invited Iecture at the 24th Annual Meeting)

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