TY - JOUR PY - 1998// TI - The 2/3 power law: when and why? JO - Acta psychologica A1 - Plamondon, R. A1 - Guerfali, W. SP - 85 EP - 96 VL - 100 IS - 1-2 N2 - This paper presents the origin of some reported observations, which links the kinematics of handwriting with a movement trajectory, best known as the 2/3 power law. Using computer simulations, it is shown that the vectorial delta-lognormal model recently proposed to describe 2D movements can successfully simulate these phenomena. Although the power law has been found to be a good predictor in many experimental conditions, a few experiments have shown that the law does not apply to all graphic movements. Using the vectorial delta-lognormal model, the conditions under which a 2/3 power relationship can be observed are presented and the reasons why it does not seem to be verified for more general handwritten patterns are highlighted.

Language: en

LA - en SN - 0001-6918 UR - http://dx.doi.org/ ID - ref1 ER -