t 2015/19/B/HS1/03310 “Mechanisms of geometric cognition” funded by National Science Centre, Poland
German Research Foundation (DFG NU 265/3-1) on “Linguistic Influences on Numerical Cognition: A cross-cultural investigation using natural specificities of Polish and German languages.”
is is an Open Access Article. It is published by Frontiers Media under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/