Motion, not masking, provides the medium for feature attribution
Motion, not masking, provides the medium for feature attribution
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DOI：
10.1111/j.1467-9280.2008.02163.x
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发表时间：
2008-08-01
影响因子：
8.2
通讯作者：
Oegmen, Haluk
中科院分区：
文献类型：
--
作者：
Breitmeyer, Bruno G.;Herzog, Michael H.;Oegmen, Haluk
理解不同特征如何结合形成整体对象表征的动力学是视觉认知中的一个核心问题。特征归属（又称特征转置和特征继承）是指两个刺激中后一个刺激表达属于前一个刺激的特征。特征归因涉及视觉掩蔽和表观运动。我们发现，当没有掩蔽的表观运动发生时，它与特征属性呈正相关。此外，当表观运动与掩蔽发生时，特征归因与表观运动在掩蔽的贡献被剔除后仍保持正相关，而在相似的表观运动贡献被剔除后与掩蔽不相关。因此，运动过程本身为特征归因提供了有效的媒介。我们的研究结果阐明了在人类视觉中形成整体和单一对象表征的特征绑定动力学。
Understanding the dynamics of how separate features combine to form holistic object representations is a central problem in visual cognition. Feature attribution (also known as feature transposition and feature inheritance) refers to the later of two stimuli expressing the features belonging to the earlier one. Both visual masking and apparent motion are implicated in feature attribution. We found that when apparent motion occurs without masking, it correlates positively with feature attribution. Moreover, when apparent motion occurs with masking, feature attribution remains positively correlated with apparent motion after the contribution of masking is factored out, but does not correlate with masking after the contribution of apparent motion is similarly factored out. Hence, motion processes on their own provide the effective medium for feature attribution. Our results clarify the dynamics of feature binding in the formation of integral and unitary object representations in human vision.