Perceived Motion and Operational Momentum: How Speed, Distance, and Time Influence Two-Digit Arithmetic.

ABSTRACT: Operational momentum was originally defined as a bias toward underestimating outcomes of subtraction and overestimating outcomes of addition. It was suggested that these estimation biases are due to leftward attentional shift along the mental number-line (spatially organized internal representation of number) in subtraction and rightward shift in addition. This assumes the use of "recycled" mechanisms of spatial attention, including "representational momentum" - a tendency to overestimate future position of a moving object, which compensates for the moving object's shift during preparation of a reaction. We tested a strong version of this assumption directly, priming two-digit addition and subtraction problems with leftward and rightward motion of varied velocity, as velocity of the tracke

SUBMITTER: Haman M 

PROVIDER: S-EPMC8313890 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature