Movement vigor as a reflection of subjective economic utility

R Shadmehr, TR Reppert, EM Summerside… - Trends in …, 2019 - cell.com
To understand subjective evaluation of an option, various disciplines have quantified the
interaction between reward and effort during decision making, producing an estimate of …

How adaptation, training, and customization contribute to benefits from exoskeleton assistance

KL Poggensee, SH Collins - Science Robotics, 2021 - science.org
Exoskeletons can enhance human mobility, but we still know little about why they are
effective. For example, we do not know the relative importance of training, how much is …

Saccade vigor reflects the rise of decision variables during deliberation

CC Korbisch, DR Apuan, R Shadmehr, AA Ahmed - Current Biology, 2022 - cell.com
During deliberation, as we quietly consider our options, the neural activities representing the
decision variables that reflect the goodness of each option rise in various regions of the …

Optimization of energy and time predicts dynamic speeds for human walking

RE Carlisle, AD Kuo - Elife, 2023 - elifesciences.org
Humans make a number of choices when they walk, such as how fast and for how long. The
preferred steady walking speed seems chosen to minimize energy expenditure per distance …

Preferred walking speed on rough terrain: is it all about energetics?

K Gast, R Kram, R Riemer - Journal of experimental biology, 2019 - journals.biologists.com
Humans have evolved the ability to walk very efficiently. Further, humans prefer to walk at
speeds that approximately minimize their metabolic energy expenditure per unit distance (ie …

A unified energy-optimality criterion predicts human navigation paths and speeds

GL Brown, N Seethapathi, M Srinivasan - Proceedings of the National …, 2021 - pnas.org
Navigating our physical environment requires changing directions and turning. Despite its
ecological importance, we do not have a unified theoretical account of non-straight-line …

Do we all walk the walk? A comparison of walking behaviors across tetrapods

MK Struble, AC Gibb - Integrative and comparative biology, 2022 - academic.oup.com
A “walking” gait has been identified in a range of vertebrate species with different body
plans, habitats, and life histories. With increased application of this broad umbrella term, it …

Dimensionality reduction of human gait for prosthetic control

D Boe, AA Portnova-Fahreeva, A Sharma… - … in Bioengineering and …, 2021 - frontiersin.org
We seek to use dimensionality reduction to simplify the difficult task of controlling a lower
limb prosthesis. Though many techniques for dimensionality reduction have been described …

Disentangling the effects of metabolic cost and accuracy on movement speed

GW Bruening, RJ Courter, S Sukumar… - PLoS computational …, 2024 - journals.plos.org
On any given day, we make countless reaching movements to objects around us. While
such ubiquity may suggest uniformity, each movement's speed is unique—why is this …

Ankle exoskeleton assistance can affect step regulation during self-paced walking

S Canete, EB Wilson, DA Jacobs - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Exoskeleton assistance can reduce metabolic cost and increase preferred walking speed in
unimpaired and impaired groups, but individual outcomes are highly variable. Assistance …