Form constraints in motion binding
Form constraints in motion binding
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DOI：
10.1038/89543
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发表时间：
2001-07-01
影响因子：
25
通讯作者：
Alais, D
中科院分区：
文献类型：
--
作者：
Lorenceau, J;Alais, D
对形式和运动的视觉分析沿着并行的方向进行。对移动形式的统一感知需要这些流之间的相互作用，尽管相互作用是否发生在皮层处理的早期或晚期仍然悬而未决。使用通过孔径采样的旋转轮廓形状，我们表明将局部运动绑定到全局对象运动在很大程度上取决于空间配置。当相同的局部运动分量定义闭合配置时，它们会被连贯地感知，但当它们定义开放配置时，通常不会被连贯地感知。我们的实验表明，这种影响出现在早期皮质水平，并在没有闭合的情况下作为基于形式的运动整合否决发挥作用。
Visual analyses of form and motion proceed along parallel streams. Unified perception of moving forms requires interactions between these streams, although whether the interactions occur early or late in cortical processing remains unresolved. Using rotating outlined shapes sampled through apertures, we showed that binding local motions into global object motion depends strongly on spatial configuration. Identical local motion components are perceived coherently when they define closed configurations, but usually not when they define open configurations. Our experiments show this influence arises in early cortical levels and operates as a form-based veto of motion integration in the absence of closure.