Barenholtz Elan, Feldman Jacob
Department of Psychology, Center for Cognitive Science, Rutgers University, New Brunswick, NJ 08854-8020 USA.
Vision Res. 2003 Jul;43(15):1655-66. doi: 10.1016/s0042-6989(03)00166-4.
Subjects judged whether two marks placed at different positions along a curved contour were physically the same. When targets were separated by a concave curvature extremum--corresponding to a part-boundary--decision latencies were longer than when they straddled an equally curved convex extremum, demonstrating a "single-part superiority effect". This difference increased with both stimulus duration and the magnitude of contour curvature. However, it disappeared when the global configuration was not consistent with a part-boundary interpretation, suggesting a critical role of global organization in part decomposition.
受试者判断沿弯曲轮廓不同位置放置的两个标记在物理上是否相同。当目标被对应于部分边界的凹曲率极值隔开时，决策潜伏期比它们跨越同样弯曲的凸极值时更长，这表明了“单部分优势效应”。这种差异随着刺激持续时间和轮廓曲率大小的增加而增大。然而，当整体构型与部分边界解释不一致时，这种差异就消失了，这表明整体组织在部分分解中起着关键作用。
