Addition goes where the big numbers are: evidence for a reversed operational momentum effect

Michal Pinhas, Samuel Shaki, Martin H. Fischer

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Number processing evokes spatial biases, both when dealing with single digits and in more complex mental calculations. Here we investigated whether these two biases have a common origin, by examining their flexibility. Participants pointed to the locations of arithmetic results on a visually presented line with an inverted, right-to-left number arrangement. We found directionally opposite spatial biases for mental arithmetic and for a parity task administered both before and after the arithmetic task. We discuss implications of this dissociation in our results for the task-dependent cognitive representation of numbers.

Original languageEnglish
Pages (from-to)993-1000
Number of pages8
JournalPsychonomic Bulletin and Review
Volume22
Issue number4
DOIs
StatePublished - 27 Aug 2015

Keywords

  • Mental arithmetic
  • Mental number line
  • Operational momentum
  • Pointing
  • SNARC

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