Continuous evaluation of cost-to-go for flexible reaching control and online decisions.

ABSTRACT: Humans consider the parameters linked to movement goal during reaching to adjust their control strategy online. Indeed, rapid changes in target structure or disturbances interfering with their initial plan elicit rapid changes in behavior. Here, we hypothesize that these changes could result from the continuous use of a decision variable combining motor and cognitive components. We combine an optimal feedback controller with a real-time evaluation of the expected cost-to-go, which considers target- and movement-related costs, in a common theoretical framework. This model reproduces human behaviors in presence of changes in the target structure occurring during movement and of online decisions to flexibly change target following external perturbations. It also predicts that the time taken t

SUBMITTER: De Comite A 

PROVIDER: S-EPMC10561875 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature