Festman Yariv, Braun Jochen
Department of Psychology, University of Potsdam, Potsdam, Germany.
Vision Res. 2012 Feb 1;54:31-8. doi: 10.1016/j.visres.2011.12.003. Epub 2011 Dec 29.
We studied the spreading of feature-based attention from attended to ignored motion fields (linear, circular, and combinations). When observers attended one of two superimposed motion fields on one side of the visual midline, sub-threshold priming by an ignored motion field was altered significantly on the opposite side of the midline. This attentional spreading was observed only when attended and ignored motion fields conformed to a complex global flow, not when they shared the same linear motion. These findings corroborate an earlier study (Festman & Braun, 2010), which obtained similar results with a complementary methodology. We conclude that feature-based attention is more complex than hitherto appreciated in that it spreads preferentially in an object-specific manner.
我们研究了基于特征的注意力从被关注的运动区域扩散到被忽略的运动区域（线性、圆形以及组合形式）的情况。当观察者关注视觉中线一侧两个叠加运动区域中的一个时，被忽略运动区域产生的阈下启动效应在中线的另一侧会发生显著改变。这种注意力扩散仅在被关注和被忽略的运动区域符合复杂的全局流时才会观察到，而当它们具有相同的线性运动时则不会出现。这些发现证实了早期的一项研究（费斯曼 & 布劳恩，2010年），该研究采用互补方法获得了类似的结果。我们得出结论，基于特征的注意力比迄今为止所认识到的更为复杂，因为它优先以特定对象的方式进行扩散。
