@article{PinhasShakiFischer2015, author = {Pinhas, Michal and Shaki, Samuel and Fischer, Martin H.}, title = {Addition goes where the big numbers are: evidence for a reversed operational momentum effect}, series = {Psychonomic bulletin \& review : a journal of the Psychonomic Society}, volume = {22}, journal = {Psychonomic bulletin \& review : a journal of the Psychonomic Society}, number = {4}, publisher = {Springer}, address = {New York}, issn = {1069-9384}, doi = {10.3758/s13423-014-0786-z}, pages = {993 -- 1000}, year = {2015}, 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.}, language = {en} }