The Commingled Division of Visual Attention
The Commingled Division of Visual Attention
复制标题
视觉注意力的混合划分
作者：
Yuechuan Sun;Sijing Wu;I. Spence
许多关键的活动需要视觉注意力同时分布在不同的任务中，而被关注的焦点在空间上是不分离的。在我们的两个实验中，参与者进行了大量的试验，其中主要任务（点的枚举）和次要任务（报告存在/不存在或独特形状的身份）都需要视觉注意力的划分。这些斑点和形状在空间上是混合的，在相对较小的部分试验中，形状出现了不可预测的情况。次要任务刺激（形状）与主要任务（点数）施加的注意负荷成反比。当形状确实出现时，在主要任务（枚举）上的表现相对于没有形状时有所下降；速度和准确性都受到了损害。当次要任务除了检测之外还需要识别时，反应时间增加了大约200%。这些结果与知觉加工的偏见竞争模型广泛兼容。增强现实平视显示器（AR-HUD）是一个需要混合视觉注意力的重要应用领域。这项创新有可能使驾驶车辆更安全，但我们的数据表明，人们对驾驶员分心的担忧很大。
Many critical activities require visual attention to be distributed simultaneously among distinct tasks where the attended foci are not spatially separated. In our two experiments, participants performed a large number of trials where both a primary task (enumeration of spots) and a secondary task (reporting the presence/absence or identity of a distinctive shape) required the division of visual attention. The spots and the shape were commingled spatially and the shape appeared unpredictably on a relatively small fraction of the trials. The secondary task stimulus (the shape) was reported in inverse proportion to the attentional load imposed by the primary task (enumeration of spots). When the shape did appear, performance on the primary task (enumeration) suffered relative to when the shape was absent; both speed and accuracy were compromised. When the secondary task required identification in addition to detection, reaction times increased by about 200 percent. These results are broadly compatible with biased competition models of perceptual processing. An important area of application, where the commingled division of visual attention is required, is the augmented reality head-up display (AR-HUD). This innovation has the potential to make operating vehicles safer but our data suggest that there are significant concerns regarding driver distraction.
DOI：
10.1037/0096-1523.26.2.834
发表时间：
2000-04-01
影响因子：
2.1
作者：
Awh, E;Pashler, H
通讯作者：
Pashler, H