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Cognitive Processing

, Volume 14, Issue 4, pp 401–410 | Cite as

Psychological distance and reaction time in a Stroop task

  • Giorgio De MarchisEmail author
  • María del Prado Rivero Expósito
  • José Manuel Reales Avilés
Research Report
  • 1.6k Downloads

Abstract

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.

Keywords

Stroop color-word test Stimulus generalization Generalization (cognitive) Word associations 

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Copyright information

© Marta Olivetti Belardinelli and Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Giorgio De Marchis
    • 1
    Email author
  • María del Prado Rivero Expósito
    • 2
  • José Manuel Reales Avilés
    • 2
  1. 1.Universidad Complutense de MadridMadridSpain
  2. 2.Universidad Nacional de Educación a DistanciaMadridSpain

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