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首页> 外文期刊>Journal of vision >MIB and target saliency: how many salient features are necessary for the target to disappear?
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MIB and target saliency: how many salient features are necessary for the target to disappear?

机译：MIB和目标显着性：目标消失需要多少显着特征？

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Attentional competition between object representations can account for the disappearances of salient targets superimposed upon a moving mask a?? a phenomenon known as motion-induced blindness (MIB, Bonneh et al., 2001). It has been shown that differences in luminance contrast and in shape between a target and a mask lead to the increase of the disappearances duration in MIB (Bonneh et al., 2001, Hsu et al., 2004). But how many feature differences between the target and the mask components would be sufficient to trigger such competition? We used a target which differed from the mask components either in one or in two features (color and/or motion). Participants reported disappearances in all three experimental conditions, but the amount of disappearances was significantly higher in the condition with two distinguishing features than in the conditions with just one distinguishing feature (either color t(24)=4,282, pa?¤0,001, or motion t(24)=7,352, pa?¤0,001). The amount of disappearances was also higher in the condition where the moving target and the mask differed in color as compared to the condition with the static blue target and the moving blue mask (t(24)=4,481, pa?¤0,001). However, differences in the duration of disappearances reached the level of significance only for the condition with two distinguishing target features and for the a??colora?? condition (t(24)=4,709, pa?¤0,001). Thus, just one salient feature is enough to trigger competition between object representations. But the more target and mask representations differ in terms of visual features, the more the target disappears.
机译：对象表示之间的注意竞争可以解释叠加在移动蒙版a？上的显着目标的消失。这种现象称为运动引起的失明（MIB，Bonneh等，2001）。已经显示出目标和掩模之间的亮度对比度和形状上的差异导致MIB中消失持续时间的增加（Bonneh等，2001; Hsu等，2004）。但是目标和掩膜组件之间有多少特征差异足以触发这种竞争？我们使用的目标在一个或两个特征（颜色和/或运动）方面与蒙版组件不同。参与者报告了所有三个实验条件下的消失，但是具有两个区别特征的条件下的消失量明显高于只有一个区别特征的条件下的消失量（颜色t（24）= 4,282，pa？0.001或运动t（24）= 7352，pa？0.001）。与具有静态蓝色靶和移动蓝色掩模的条件相比，在移动靶和掩模颜色不同的条件下的消失量也更高（t（24）＝ 4481，pa≤0.001）。但是，消失持续时间的差异仅对于具有两个明显目标特征的情况和对于“色度”的显着性水平就达到了显着水平。条件（t（24）= 4,709，pa？0.001）。因此，仅一个显着特征就足以触发对象表示之间的竞争。但是目标和蒙版表示形式在视觉特征方面的差异越大，目标消失的次数就越多。

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