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Psychological Research

, Volume 78, Issue 4, pp 539–548 | Cite as

Cognitive control in number magnitude processing: evidence from eye-tracking

  • S. Huber
  • A. Mann
  • H.-C. Nuerk
  • K. Moeller
Original Article

Abstract

The unit-decade compatibility effect describes longer response times and higher error rates for incompatible (e.g., 37_52) than compatible (e.g., 42_57) number comparisons. Recent research indicated that the effect depends on the percentage of same-decade filler items. In the present study, we further examined this relationship by recording participants’ eye-fixation behaviour. In four conditions, participants had to compare item sets with different filler item types (i.e., same-decade and same-unit filler items) and different numbers of same-decade filler items (i.e., 25, 50, and 75 %). We found a weaker unit-decade compatibility effect with most fixations on tens in the condition with same-unit filler items. Moreover, the compatibility effect increased with the percentage of same-decade filler items which was accompanied by less fixations on tens and more fixations on units. Thus, our study provides first eye-tracking evidence for the influence of cognitive control in number processing.

Keywords

Cognitive Control Compatibility Effect Filler Item Number Pair Mental Number Line 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

We thank Ian Mackenzie for proof-reading of the manuscript.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Knowledge Media Research CenterTuebingenGermany
  2. 2.Department of PsychologyEberhard Karls UniversityTuebingenGermany

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