Kory Wallace Mathewson

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—In this article we develop the perspective that assistive devices, and specifically artificial arms and hands, may be beneficially viewed as goal-seeking agents. We further suggest that taking this perspective enables more powerful interactions between human users and next generation prosthetic devices, especially when the sensorimotor space of the(More)
PURPOSE Develop an MRI method to estimate skeletal muscle oxygen consumption (VO2 ) with dynamic exercise using simultaneous measurement of venous blood flow (VBF) and venous oxygen saturation (SvO2 ). METHODS Real-time imaging of femoral VBF using a complex-difference method was interleaved with imaging of venous hemoglobin oxygen saturation (SvO2 )(More)
This paper extends recent work in interactive machine learning (IML) focused on effectively incorporating human feedback. We show how control and feedback signals complement each other in systems which model human reward. We demonstrate that simultaneously incorporating human control and feedback signals can improve interactive robotic systems' performance(More)
This paper contributes a preliminary report on the advantages and disadvantages of incorporating simultaneous human control and feedback signals in the training of a reinforcement learning robotic agent. While robotic human-machine interfaces have become increasingly complex in both form and function, control remains challenging for users. This has resulted(More)
The goals of the current study were to compare leg blood flow, oxygen extraction and oxygen uptake (VO2) after constant load sub-maximal unilateral knee extension (ULKE) exercise in patients with heart failure with reduced ejection fraction (HFrEF) compared to those with preserved ejection fraction (HFpEF). Previously, it has been shown that prolonged whole(More)
Research Direction: Development of new cardiovascular magnetic resonance imaging biomarkers to address current challenges in clinical research and to improve our understanding disease mechanisms. Research Approach: Development of new methods from first principles of imaging physics to target physiologic questions of interest and rapid translation to(More)
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