Clinical tests have shown that the dynamics of a human arm, controlled using Functional Electrical Stimulation (FES), can vary significantly between and during trials. In this paper, we study the application of Reinforcement Learning to create a controller that can adapt to these changing dynamics of a human arm. Development and tests were done in simulation using a two-dimensional arm model an...

We present a semantic framework for actor systems based on rewriting logic. This framework accounts for fairness and provides a variety of semantics for actor system components that have good composability properties.

Social interactions with non-biological agents and interactions with technical devices have become increasingly important over the last years. Recent studies investigating the interactions between humans and non-human agents showed rather inconsistent results. While the joint Simon effect (cSE) was found to be absent for non-human co-actors like virtual wooden hands, other studies showed pronou...

Despite their distinct objects of study, the human behavioral sciences all include models of individual human behavior. Unity in the behavioral sciences requires that there be a common underlying model of individual human behavior, specialized and enriched to meet the particular needs of each discipline. Such unity does not exist, and cannot be easily attained, since the various disciplines hav...

This study investigated the extent to which observation of an action performed by a human actor or a robotic arm may kinematically prime the performance of an observer subsequently required to perform a similar action. In Experiment 1, an actor reached for a target presented in isolation or flanked by a distractor object. Subsequently, an observer was required to perform a similar action toward...

Work in human-computer interaction has generally assumed either a single user or a group of users working together in a shared virtual space. Recent crowd-powered systems use a different model in which a dynamic group of individuals (the crowd) collectively form a single actor that responds to real-time performance tasks, e.g., controlling an on-screen character, driving a robot, or operating a...