Visuospatial interpolation in typically developing children and in people with Williams Syndrome
作者： Melanie Palomares , Barbara Landau , Howard Egeth
DOI: 10.1016/J.VISRES.2008.08.012
关键词: Psychophysics 、 Sensory threshold 、 Williams syndrome 、 Psychology 、 Cognitive psychology 、 Illusory contours 、 Perceptual Disorders 、 Child development 、 Optical illusion 、 Context (language use)
摘要: Abstract Visuospatial interpolation is the estimation of object position or contour shape computed from known “anchor” positions. We characterized developmental profile by measuring positional thresholds as a function inter-element separation without (Experiment 1) and with 2) context illusory contours in typically developing children, typical adults individuals Williams Syndrome (WS), genetic disorder that causes impaired global visuospatial abilities. found children WS had more difficulty integrating information across distant elements than adults. However, improved all participant groups similar way. Our results suggest individuals, grouping mechanisms enable long-range spatial integration are immature. hypothesize young can use stimulus-driven cues for bottom–up integration, but have immature top–down information.
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