Valsecchi Matteo, Vescovi Massimo, Turatto Massimo
University of Trento, Rovereto, Italy.
Atten Percept Psychophys. 2010 Apr;72(3):637-50. doi: 10.3758/APP.72.3.637.
A number of studies in recent years have suggested that exogenous and endogenous attention might enhance the perceived magnitude of various perceptual attributes, such as contrast and motion speed. Those studies have generally used comparative judgments as a measure to assess the point of subjective equality; however, similarity judgments have been proposed as possibly less prone to decision biases (Schneider & Komlos, 2008). In three experiments, using a similarity judgment task, we did not find any evidence of motion speed enhancement by exogenous attention. We suggest that the effect revealed by comparative judgments arises at the decisional, rather than the perceptual, stage.
近年来的一些研究表明，外源性和内源性注意力可能会增强各种感知属性（如对比度和运动速度）的感知强度。这些研究通常使用比较判断作为评估主观相等点的一种方法；然而，有人提出相似性判断可能较少受到决策偏差的影响（施奈德和科姆洛斯，2008年）。在三项实验中，我们使用相似性判断任务，没有发现任何外源性注意力增强运动速度的证据。我们认为，比较判断所揭示的效应出现在决策阶段，而非感知阶段。
