AIMC Topic: Feedback, Physiological
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Stretch reflex improves rolling stability during hopping of a decerebrate biped system.
Bioinspiration & biomimetics
Jan 19, 2015
When humans hop, attitude recovery can be observed in both the sagittal and frontal planes. While it is agreed that the brain plays an important role in leg placement, the role of low-level feedback (the stretch reflex) on frontal plane stabilization...
Ten-dimensional anthropomorphic arm control in a human brain-machine interface: difficulties, solutions, and limitations.
Journal of neural engineering
Dec 16, 2014
OBJECTIVE: In a previous study we demonstrated continuous translation, orientation and one-dimensional grasping control of a prosthetic limb (seven degrees of freedom) by a human subject with tetraplegia using a brain-machine interface (BMI). The cur...
Further improvement on delay-dependent robust stability criteria for neutral-type recurrent neural networks with time-varying delays.
ISA transactions
Nov 8, 2014
This paper is concerned with the problem of improved delay-dependent robust stability criteria for neutral-type recurrent neural networks (NRNNs) with time-varying delays. Combining the Lyapunov-Krasovskii functional with linear matrix inequality (LM...
Control of robotic assistance using poststroke residual voluntary effort.
IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society
Oct 31, 2014
Poststroke hemiparesis limits the ability to reach, in part due to involuntary muscle co-activation (synergies). Robotic approaches are being developed for both therapeutic benefit and continuous assistance during activities of daily living. Robotic ...
An assistive control approach for a lower-limb exoskeleton to facilitate recovery of walking following stroke.
IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society
Aug 12, 2014
This paper presents a control approach for a lower-limb exoskeleton intended to facilitate recovery of walking in individuals with lower-extremity hemiparesis after stroke. The authors hypothesize that such recovery is facilitated by allowing the pat...
Extrinsic finger and thumb muscles command a virtual hand to allow individual finger and grasp control.
IEEE transactions on bio-medical engineering
Jul 31, 2014
Fine-wire intramuscular electrodes were used to obtain electromyogram (EMG) signals from six extrinsic hand muscles associated with the thumb, index, and middle fingers. Subjects' EMG activity was used to control a virtual three-degree-of-freedom (DO...
Feedforward model based arm weight compensation with the rehabilitation robot ARMin.
IEEE ... International Conference on Rehabilitation Robotics : [proceedings]
Jul 1, 2017
Highly impaired stroke patients at early stages of recovery are unable to generate enough muscle force to lift the weight of their own arm. Accordingly, task-related training is strongly limited or even impossible. However, as soon as partial or full...
Biological modelling of a computational spiking neural network with neuronal avalanches.
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Jun 28, 2017
In recent years, an increasing number of studies have demonstrated that networks in the brain can self-organize into a critical state where dynamics exhibit a mixture of ordered and disordered patterns. This critical branching phenomenon is termed ne...
Exoskeleton control for lower-extremity assistance based on adaptive frequency oscillators: adaptation of muscle activation and movement frequency.
Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine
Jan 1, 2015
In this article, we analyze a novel strategy for assisting the lower extremities based on adaptive frequency oscillators. Our aim is to use the control algorithm presented here as a building block for the control of powered lower-limb exoskeletons. T...
A method to study precision grip control in viscoelastic force fields using a robotic gripper.
IEEE transactions on bio-medical engineering
Jan 1, 2015
Instrumented objects and multipurpose haptic displays have commonly been used to investigate sensorimotor control of grasping and manipulation. A major limitation of these devices, however, is the extent to which the experimenter can vary the interac...
Humans
Female
Reproducibility of Results
Adult
Sensitivity and Specificity
Male
Physical Examination
Physical Stimulation
Feedback, Physiological
Viscosity
Elastic Modulus
Hand Strength
Task Performance and Analysis
Robotics
Manometry
Equipment Design
Equipment Failure Analysis
Stress, Mechanical
Man-Machine Systems
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