Statistical decision theory and the selection of rapid, goal-directed movements

J Opt Soc Am A Opt Image Sci Vis. 2003 Jul;20(7):1419-33. doi: 10.1364/josaa.20.001419.

Abstract

We present two experiments that test the range of applicability of a movement planning model (MEGaMove) based on statistical decision theory. Subjects attempted to earn money by rapidly touching a green target region on a computer screen while avoiding nearby red penalty regions. In two experiments we varied the magnitudes of penalties, the degree of overlap of target and penalty regions, and the number of penalty regions. Overall, subjects acted so as to maximize gain in a wide variety of stimulus configurations, in good agreement with predictions of the model.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adult
  • Decision Theory*
  • Female
  • Goals*
  • Humans
  • Male
  • Models, Theoretical*
  • Movement / physiology*
  • Time Factors