Hollingworth Andrew, Luck Steven J
Department of Psychology, University of Iowa, Iowa City, Iowa 52242-1407, USA.
Atten Percept Psychophys. 2009 May;71(4):936-49. doi: 10.3758/APP.71.4.936.
We investigated the interactions among visual working memory (VWM), attention, and gaze control in a visual search task that was performed while a color was held in VWM for a concurrent discrimination task. In the search task, participants were required to foveate a cued item within a circular array of colored objects. During the saccade to the target, the array was sometimes rotated so that the eyes landed midway between the target object and an adjacent distractor object, necessitating a second saccade to foveate the target. When the color of the adjacent distractor matched a color being maintained in VWM, execution of this secondary saccade was impaired, indicating that the current contents of VWM bias saccade targeting mechanisms that direct gaze toward target objects during visual search.
我们在一项视觉搜索任务中研究了视觉工作记忆(VWM)、注意力和注视控制之间的相互作用。在该任务中,一种颜色被保持在VWM中以用于同时进行的辨别任务。在搜索任务中,参与者需要注视彩色物体圆形阵列中的一个被提示的项目。在向目标进行扫视的过程中,阵列有时会旋转,使得眼睛落在目标物体和相邻干扰物体之间的中间位置,这就需要进行第二次扫视才能注视到目标。当相邻干扰物的颜色与VWM中保持的颜色匹配时,第二次扫视的执行就会受到损害,这表明VWM的当前内容会使在视觉搜索过程中引导注视指向目标物体的扫视目标机制产生偏差。