Visuospatial interpolation in typically developing children and in people with Williams Syndrome.
Visuospatial interpolation in typically developing children and in people with Williams Syndrome.
复制标题
DOI：
10.1016/j.visres.2008.08.012
复制
发表时间：
2008-10
期刊：
影响因子：
1.8
通讯作者：
Egeth, Howard
中科院分区：
文献类型：
--
作者：
Palomares, Melanie;Landau, Barbara;Egeth, Howard
关键词：
Visuospatial interpolation is the estimation of object position or contour shape computed from known “anchor” positions. We characterized the developmental profile of interpolation by measuring positional thresholds as a function of inter-element separation without (Experiment 1) and with (Experiment 2) the context of illusory contours in typically developing children, typical adults and individuals with Williams Syndrome (WS), a genetic disorder that causes impaired global visuospatial abilities. We found that typically developing children and WS individuals had more difficulty integrating information across distant elements than typical adults. However, illusory contours improved thresholds in all participant groups in a similar way. Our results suggest that in WS individuals, and in typically developing children, the grouping mechanisms that enable long-range spatial integration are immature. We hypothesize that WS individuals and young children can use stimulus-driven grouping cues for bottom-up integration, but have immature mechanisms for top-down integration of spatial information.
登录
查看更多内容
DOI：
10.1073/pnas.0402680101
发表时间：
2004-05-25
影响因子：
11.1
作者：
Gogtay, N;Giedd, JN;Thompson, PM
通讯作者：
Thompson, PM
影响因子：
2.7
作者：
CUMMINGS, MF;VANHOFVANDUIN, J;FULTON, AB
通讯作者：
FULTON, AB
影响因子：
2
作者：
Georgopoulos, MA;Georgopoulos, AP;Landau, B
通讯作者：
Landau, B
影响因子：
1.8
作者：
Guttman, SE;Kellman, PJ
通讯作者：
Kellman, PJ
影响因子：
1.5
作者：
Dykens, EM
通讯作者：
Dykens, EM