Cole Geoff G, Kuhn Gustav, Skarratt Paul A
Durham University, Durham, England.
Atten Percept Psychophys. 2011 Jul;73(5):1407-21. doi: 10.3758/s13414-011-0118-6.
The processing of luminance change is a ubiquitous feature of the human visual system and provides the basis for the rapid orienting of attention to potentially important events (e.g., motion onset, object onset). However, despite its importance for attentional capture, it is not known whether a luminance change attracts attention solely because of its status as a sensory transient or can attract attention at a relatively high cognitive level. In a series of six experiments, we presented visual displays in which a single object underwent a luminance change that was either visible or obscured by a mask. A target then appeared either at the change location or elsewhere. The results showed that the luminance change attracted attention only in the visible condition. This was even observed with the largest change we could generate (> 75 cd/m(2)). These data suggest that the importance of a luminance change is only in its status as a low-level sensory transient.
亮度变化的处理是人类视觉系统中普遍存在的特征，为注意力快速定向到潜在的重要事件（如运动开始、物体出现）提供了基础。然而，尽管其对注意力捕获很重要，但尚不清楚亮度变化仅仅因其作为感觉瞬变的状态而吸引注意力，还是能在相对较高的认知水平上吸引注意力。在一系列六个实验中，我们呈现了视觉显示，其中单个物体经历了亮度变化，该变化要么可见，要么被掩蔽物遮挡。然后一个目标出现在变化位置或其他地方。结果表明，亮度变化仅在可见条件下吸引注意力。即使是我们能产生的最大变化（>75 cd/m²）时也观察到了这一点。这些数据表明，亮度变化的重要性仅在于其作为低水平感觉瞬变的状态。
