Choi Jong Moon, Cho Yang Seok, Proctor Robert W
Korea University, Seoul, Korea.
Mem Cognit. 2009 Sep;37(6):935-44. doi: 10.3758/MC.37.6.935.
A Stroop task with separate color bar and color word stimuli was combined with an inhibition-of-return procedure to examine whether visual attention modulates color word processing. In Experiment 1, the color bar was presented at the cued location and the color word at the uncued location, or vice versa, with a 100- or 1,050-msec stimulus onset asynchrony (SOA) between cue and Stroop stimuli. In Experiment 2, on Stroop trials, the color bar was presented at a central fixated location and the color word at a cued or uncued location above or below the color bar. In both experiments, with a 100-msec SOA, the Stroop effect was numerically larger when the color word was displayed at the cued location than when it was displayed at the uncued location, but with the 1,050-msec SOA, this relation between Stroop effect magnitude and location was reversed. These results provide evidence that processing of the color word in the Stroop task is modulated by the location to which visual attention is directed.
一个将单独的颜色条和颜色词刺激相结合的斯特鲁普任务与返回抑制程序相结合，以检验视觉注意是否调节颜色词加工。在实验1中，颜色条呈现在线索提示的位置，颜色词呈现在未被线索提示的位置，或者反之，线索提示与斯特鲁普刺激之间的刺激呈现异步（SOA）为100毫秒或1050毫秒。在实验2中，在斯特鲁普试验中，颜色条呈现在中央注视位置，颜色词呈现在颜色条上方或下方的线索提示或未被线索提示的位置。在两个实验中，当SOA为100毫秒时，颜色词显示在线索提示位置时的斯特鲁普效应在数值上比显示在未被线索提示位置时更大，但当SOA为1050毫秒时，斯特鲁普效应大小与位置之间的这种关系则相反。这些结果提供了证据，表明斯特鲁普任务中颜色词的加工受到视觉注意所指向位置的调节。
