De Marchis Giorgio, Rivero Expósito María del Prado, Reales Avilés José Manuel
Universidad Complutense de Madrid, Madrid, Spain,
Cogn Process. 2013 Nov;14(4):401-10. doi: 10.1007/s10339-013-0569-x. Epub 2013 Jun 1.
Several sources of interference may simultaneously affect the onset of the well-known "Stroop effect." Among them is the semantic component, which is reflected in the gradient or semantic effect. This effect consists of an increase in the amount of interference as the semantic distance between the word and the color concept decreases. Shepard (Science 237:1317-1323, 1987) relates psychological space, measured through multidimensional scaling, to mean response times. The present investigation aims to study the function relating the semantic gradient with the psychological distance between the word and the color in a Stroop task. After measuring the gradient, we obtained the subjective rating of the degree of dissimilarity of the gradient words with the concept of "color." In our work, we show that the amount of interference in a Stroop task increases when the semantic distance from the word to the color concept decreases, and it does so exponentially. We replicated the study with different stimuli to test the robustness of the results.
几种干扰源可能同时影响著名的“斯特鲁普效应”的产生。其中包括语义成分，这反映在梯度或语义效应中。这种效应表现为随着单词与颜色概念之间的语义距离减小，干扰量增加。谢泼德（《科学》237:1317 - 1323，1987）将通过多维标度测量的心理空间与平均反应时间联系起来。本研究旨在探讨在斯特鲁普任务中，语义梯度与单词和颜色之间心理距离的函数关系。在测量梯度之后，我们获得了梯度单词与“颜色”概念的不相似度的主观评分。在我们的研究中，我们表明在斯特鲁普任务中，当从单词到颜色概念的语义距离减小时，干扰量会增加，并且是以指数方式增加。我们用不同的刺激重复了这项研究，以检验结果的稳健性。
