Department of Psychology and Centre for Theoretical Neuroscience, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 1J6, Canada.
Psychon Bull Rev. 2013 Feb;20(1):120-7. doi: 10.3758/s13423-012-0323-x.
Attention has been demonstrated to affect response speed, signal detection, and perceptual enhancement. We wished to determine whether exogenously cued attention had the additional effect of improving the veridicality of perceptual representations. We determined the accuracy and precision of orientation judgments for static and dynamic stimuli when they were, and when they were not, exogenously cued (luminance change). Valid exogenous cues led to more accurate responses that were also quicker. The attentional accuracy benefits were robust to stimulus degradation. Since our task displayed only one test stimulus at a time, response biases cannot account for our results. We concluded that exogenous cues can lead to percepts that are, on average, more similar to the external stimulus. Thus, exogenous cuing can improve perceptual quality.
注意力已被证明会影响反应速度、信号检测和感知增强。我们希望确定外源提示的注意力是否具有提高感知表示真实性的额外效果。我们确定了静态和动态刺激的方向判断的准确性和精度，当它们被和没有被外源提示（亮度变化）时。有效的外源提示导致更准确的响应，也更快。在刺激退化的情况下，注意力准确性的好处仍然存在。由于我们的任务一次只显示一个测试刺激，因此响应偏差不能解释我们的结果。我们得出结论，外源提示可以导致感知，平均而言，与外部刺激更相似。因此，外源提示可以提高感知质量。
