Negative numbers


Numerals are processed by a phylogenetically old analogue magnitude system. Can culturally new negative numerals be processed using this same representation? Using a comparison task we found that magnitude system is not used in a negative range, rather the sign of a number is processed by subsidiary processes. Our results reveal a

Krajcsi, A., & Igács, J. (2010). Processing negative numbers by transforming negatives to positive range and by sign shortcut. European Journal of Cognitive Psychology, 22(7), 1021-1038. https://doi.org/10.1080/09541440903211113

Igács, J., Janacsek, K., & Krajcsi, A. (2007). Processing negative numbers by transforming negatives to positive range and by sign shortcut. In 10th European Congress of Psychology in Prague.
(An earlier version of our experiment on a poster.)

Description of the project in Hungarian.