Persuh Marjan, Gomez Mabel, Bauer Lisa, Melara Robert D
Program in Cognitive Neuroscience, The Graduate Center, City University of New York, New York, NY, USA,
Atten Percept Psychophys. 2014 Nov;76(8):2229-39. doi: 10.3758/s13414-014-0712-5.
In two experiments, we investigated the impact of feature-based attention on observers' awareness of object appearance. Participants were shown a sequence of two displays, each containing eight objects (rectangles), and were asked to detect changes in the orientation of a cued rectangle. A set of baseline trials preceded probe trials in which half of the rectangles in each display were unexpectedly distorted by 70 %. Participants in both Experiment 1 (100-ms display duration) and Experiment 2 (100- and 400-ms display durations) were unaware of these modifications in the task-irrelevant feature (texture), even when they were asked to select the viewed object in a forced choice procedure. A control experiment showed that participants could identify the physical distortion when they were made aware of its presence. The results demonstrate that feature-based attention moderates the appearance of objects, even when those objects are fully expected and fully attended, implying a distinct form of unawareness that we term feature-based inattentional blindness.
在两项实验中，我们研究了基于特征的注意力对观察者物体外观意识的影响。向参与者展示由两个画面组成的序列，每个画面包含八个物体（矩形），并要求他们检测一个被提示的矩形的方向变化。在探测试验之前进行了一组基线试验，其中每个画面中一半的矩形意外地发生了70%的变形。实验1（显示持续时间为100毫秒）和实验2（显示持续时间为100毫秒和400毫秒）的参与者都没有意识到任务无关特征（纹理）的这些变化，即使在强制选择程序中要求他们选择所看到的物体时也是如此。一项对照实验表明，当参与者意识到物理变形的存在时，他们能够识别出来。结果表明，基于特征的注意力会调节物体的外观，即使这些物体是完全可预期且被充分关注的，这意味着一种独特的无意识形式，我们将其称为基于特征的无意视盲。
