Jabar Syaheed B, Anderson Britt
Department of Psychology, University of Waterloo, Waterloo ON, Canada.
Department of Psychology, University of Waterloo, WaterlooON, Canada; Centre for Theoretical Neuroscience, University of Waterloo, WaterlooON, Canada.
Front Psychol. 2017 Feb 8;8:183. doi: 10.3389/fpsyg.2017.00183. eCollection 2017.
We are faster and more accurate at detecting frequently occurring objects than infrequent ones, just as we are faster and more accurate at detecting objects that have been spatially cued. Does this behavioral similarity reflect similar processes? To evaluate this question we manipulated orientation probability and exogenous spatial cuing within a single perceptual estimation task. Both increased target probability and spatial cuing led to shorter response initiation times and more precise perceptual reports, but these effects were additive. Further, target probability changed the shape of the distribution of errors while spatial cuing did not. Different routes and independent mechanisms could lead to changes in behavioral measures that look similar to each other and to 'attentional' effects.
我们在检测频繁出现的物体时比不频繁出现的物体更快、更准确，就像我们在检测经过空间提示的物体时更快、更准确一样。这种行为上的相似性是否反映了相似的过程？为了评估这个问题，我们在一个单一的感知估计任务中操纵了方向概率和外源性空间提示。增加目标概率和空间提示都导致了更短的反应启动时间和更精确的感知报告，但这些效应是相加的。此外，目标概率改变了误差分布的形状，而空间提示则没有。不同的途径和独立的机制可能导致行为测量的变化，这些变化看起来彼此相似，并产生“注意力”效应。
