Zobrazeno 1 - 10
of 322
pro vyhledávání: '"Roger D. Quinn"'
Publikováno v:
Biomimetics, Vol 8, Iss 2, p 247 (2023)
One developing approach for robotic control is the use of networks of dynamic neurons connected with conductance-based synapses, also known as Synthetic Nervous Systems (SNS). These networks are often developed using cyclic topologies and heterogeneo
Externí odkaz:
https://doaj.org/article/f9963d62b9b742e19d25716b8256add2
Autor:
Kaiyu Deng, Alexander J. Hunt, Nicholas S. Szczecinski, Matthew C. Tresch, Hillel J. Chiel, C. J. Heckman, Roger D. Quinn
Publikováno v:
Biomimetics, Vol 7, Iss 4, p 226 (2022)
This work presents an in-depth numerical investigation into a hypothesized two-layer central pattern generator (CPG) that controls mammalian walking and how different parameter choices might affect the stepping of a simulated neuromechanical model. P
Externí odkaz:
https://doaj.org/article/2f646f1e9f524c2f81df768a8f207a2f
Publikováno v:
Frontiers in Robotics and AI, Vol 8 (2021)
Our group is developing a cyber-physical walking system (CPWS) for people paralyzed by spinal cord injuries (SCI). The current CPWS consists of a functional neuromuscular stimulation (FNS) system and a powered lower-limb exoskeleton for walking with
Externí odkaz:
https://doaj.org/article/e8acf965e0b2400da19824394d912f1f
Extending the Functional Subnetwork Approach to a Generalized Linear Integrate-and-Fire Neuron Model
Publikováno v:
Frontiers in Neurorobotics, Vol 14 (2020)
Engineering neural networks to perform specific tasks often represents a monumental challenge in determining network architecture and parameter values. In this work, we extend our previously-developed method for tuning networks of non-spiking neurons
Externí odkaz:
https://doaj.org/article/e0e4c2e769044eb78e2045021d318a03
Autor:
Nathaniel S. Makowski, Marshaun N. Fitzpatrick, Ronald J. Triolo, Ryan-David Reyes, Roger D. Quinn, Musa Audu
Publikováno v:
Bioengineering, Vol 9, Iss 2, p 71 (2022)
(1) Background: An iterative learning control (ILC) strategy was developed for a “Muscle First” Motor-Assisted Hybrid Neuroprosthesis (MAHNP). The MAHNP combines a backdrivable exoskeletal brace with neural stimulation technology to enable person
Externí odkaz:
https://doaj.org/article/16bcc704575a4d22b1d69abbebd63b3c
Autor:
Fletcher R. Young, Hillel J. Chiel, Matthew C. Tresch, Charles J. Heckman, Alexander J. Hunt, Roger D. Quinn
Publikováno v:
Biomimetics, Vol 7, Iss 1, p 17 (2022)
Animal locomotion is influenced by a combination of constituent joint torques (e.g., due to limb inertia and passive viscoelasticity), which determine the necessary muscular response to move the limb. Across animal size-scales, the relative contribut
Externí odkaz:
https://doaj.org/article/bf0677e32037411eb60c670c07e5fdcf
Autor:
Sarah R. Chang, Mark J. Nandor, Lu Li, Rudi Kobetic, Kevin M. Foglyano, John R. Schnellenberger, Musa L. Audu, Gilles Pinault, Roger D. Quinn, Ronald J. Triolo
Publikováno v:
Journal of NeuroEngineering and Rehabilitation, Vol 14, Iss 1, Pp 1-12 (2017)
Abstract Background Functional neuromuscular stimulation, lower limb orthosis, powered lower limb exoskeleton, and hybrid neuroprosthesis (HNP) technologies can restore stepping in individuals with paraplegia due to spinal cord injury (SCI). However,
Externí odkaz:
https://doaj.org/article/cbe051175a48423dbd7a9a668d547a6d
Publikováno v:
Frontiers in Neurorobotics, Vol 11 (2017)
A dynamical model of an animal’s nervous system, or synthetic nervous system (SNS), is a potentially transformational control method. Due to increasingly detailed data on the connectivity and dynamics of both mammalian and insect nervous systems, c
Externí odkaz:
https://doaj.org/article/cdbce26b9f0a4ac3a83a941e0682d882
Autor:
Kaiyu Deng, Nicholas S. Szczecinski, Dirk Arnold, Emanuel Andrada, Martin S. Fischer, Roger D. Quinn, Alexander J. Hunt
Publikováno v:
Biomimetics, Vol 4, Iss 1, p 21 (2019)
This work demonstrates a neuromechanical model of rat hindlimb locomotionundergoing nominal walking with perturbations. In the animal, two types of responses toperturbations are observed: resetting and non-resetting deletions. This suggests that the
Externí odkaz:
https://doaj.org/article/0ec1337c94fb451bbb2604b6998fcd8e
Autor:
Chujun Liu, Andrew G. Lonsberry, Mark J. Nandor, Musa L. Audu, Alexander J. Lonsberry, Roger D. Quinn
Publikováno v:
Biomimetics, Vol 4, Iss 1, p 28 (2019)
A control system for bipedal walking in the sagittal plane was developed in simulation. The biped model was built based on anthropometric data for a 1.8 m tall male of average build. At the core of the controller is a deep deterministic policy gradie
Externí odkaz:
https://doaj.org/article/e9f55f9f4c4f4d538c9070ff0b140d2a