Does changing Fitts’ index of difficulty evoke transitions in movement dynamics?Raoul Huys, Hester Knol, Rita Sleimen-Malkoun, Jean-Jacques Temprado and Viktor K. JirsaEPJ Nonlinear Biomed Phys, 3 1 (2015) 8DOI: https://doi.org/10.1140/epjnbp/s40366-015-0022-4