Article
Neurosciences
Dinar N. Masaev, Alina A. Suleimanova, Nikita V. Prudnikov, Mariia V. Serenko, Andrey V. Emelyanov, Vyacheslav A. Demin, Igor A. Lavrov, Max O. Talanov, Victor V. Erokhin
Summary: Existing methods of neurorehabilitation lack adaptability and have poor biocompatibility and high power consumption. This study proposes the use of memristive devices, which provide complex synaptic functionality within a single element, for organizing electrical activity in walking patterns generated by the central pattern generator.
FRONTIERS IN NEUROSCIENCE
(2023)
Article
Engineering, Mechanical
Zigen Song, Jian Xu
Summary: This study focuses on the half-center oscillator (HCO), which is a key motif of the central pattern generator (CPG) in animals. By simulating a simple delayed HCO neural system, the researchers analyzed the rhythmic activities and coexistence patterns of the system, revealing various interesting dynamical behaviors.
NONLINEAR DYNAMICS
(2022)
Article
Mathematics, Applied
Alexander G. Korotkov, Tatiana A. Levanova, Michael A. Zaks, Andrey G. Maksimov, Grigory Osipov
Summary: A minimalistic model of the half-center oscillator is proposed, considering dynamics of two excitable neurons interacting by means of excitatory coupling. Regions of dynamics characteristic for central pattern generators are identified in the parameter space of the model, including in-phase, anti-phase synchronous oscillations and quiescence, and various bifurcation transitions between these states are studied. The suggested model can be used as a building block for specific complex central pattern generators in studying rhythmic activity and information processing in animals and humans.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2022)
Article
Behavioral Sciences
Michael D. Greenfield, Bjorn Merker
Summary: This review explores the coordinated group displays and rhythmic entrainment mechanisms in arthropods and anurans, as well as the phenomenon of perfect synchrony which is typically observed only in humans. The discussion focuses on the functions of rhythmic entrainment in different species and the adaptive circumstances in which it might evolve.
NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS
(2023)
Article
Engineering, Mechanical
Zigen Song, Jian Xu
Summary: In this study, the complex dynamical behaviors of a delayed-HCO neural system are investigated. The system exhibits various periodic orbits, quasi-periodic orbits, chaotic attractors, and multiple-periodic orbits through different bifurcation routes. The system presents multiple coexistence using the classical bifurcation routes to chaos, such as the quasi-periodic orbit and period-doubling bifurcations. Interestingly, the delayed-HCO neural system proposes several similar sequences of bifurcation routes to chaos as the bifurcation parameter τ increases.
NONLINEAR DYNAMICS
(2023)
Article
Neurosciences
Anna C. Schneider, Omar Itani, Dirk Bucher, Farzan Nadim
Summary: In similar neural circuits, neuromodulators can increase the similarity of circuit outputs despite variations in ion channel expression, through modulation of ionic conductances. This study found that the presence of neuropeptides reduced the variability of a specific neuron's output in individual animals, regardless of whether they changed the mean value of the corresponding parameters or not. The reduction in variability was attributed to both saturation of responses and an increase in baseline activity.
Article
Computer Science, Artificial Intelligence
Akhil Bonagiri, Dipayan Biswas, Srinivasa Chakravarthy
Summary: The development of nonlinear dynamical electronic devices and circuits has made it possible to implement energy-efficient hardware realizations of neurobiological systems. Central pattern generator (CPG) is a neural system that controls rhythmic motor behaviors in animals. A compact and energy-efficient hardware platform for implementing neuromorphic CPGs would greatly benefit bio-inspired robotics. In this study, we demonstrate that four capacitively coupled VO2 memristor-based oscillators can produce spatiotemporal patterns corresponding to quadruped gaits and show similarities to conductance-based neuron models.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2023)
Article
Mathematics, Interdisciplinary Applications
Visarath In, Andy Kho, Patrick Longhini, Joseph D. Neff, Antonio Palacios, Pietro-Luciano Buono
Summary: This article presents the first circuit realization of an animal robot controlled by a Central Pattern Generator (CPG) network of neurons. Through hardware simulations and video snapshots, the electronic CPG and animal robot are shown to reproduce all primary gaits - walk, jump, trot, bound, pace, and pronk - as originally predicted by theory.
INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS
(2022)
Article
Engineering, Mechanical
Zigen Song, Xiaojun Huang, Jian Xu
Summary: The research constructs a CPG neural system using DHCO to control the locomotion of a snake-like robot, achieving different motion patterns. Theoretical analysis clarifies the corresponding regions of controlling parameters, enabling smooth and stable gait transition for the snake-like robot as parameters change.
NONLINEAR DYNAMICS
(2022)
Article
Biology
Ayako Yamaguchi, Manon Peltier
Summary: Males of Xenopus frogs produce species-specific vocalizations to attract females. The central pattern generators (CPGs) that drive the clicks of male frogs are conserved across species, with fast CPGs shared among fast-click species and slow CPGs shared among slow-click species. Testosterone plays a role in organizing fast CPGs in fast-click species, but not in slow-click species. Species-specific calls of Xenopus frogs have evolved by utilizing conserved slow and/or fast CPGs inherited by each species.
Article
Neurosciences
Ariana Z. Turk, Mitchell Bishop, Afuh Adeck, Shahriar SheikhBahaei
Summary: In this paper, we review the location, function, and role of astrocytes in central pattern generators (CPGs) involved in locomotion, respiration, and mastication, and propose that astrocytes may also have a significant role in vocal production CPG.
Review
Neurosciences
Dawn M. M. Blitz
Summary: Rhythmic behaviors are produced by central pattern generator (CPG) circuits, which are highly dynamic due to various inputs. Identifying modulatory neurons has provided key insights into neural circuit modulation. Physiological stimuli that activate modulatory projection neurons have demonstrated multiple modulatory codes for selecting circuit outputs.
FRONTIERS IN NEUROSCIENCE
(2023)
Article
Computer Science, Artificial Intelligence
Rudolf Szadkowski, Milos Pragr, Jan Faigl
Summary: The Central Pattern Generator (CPG) controls the gait of many animals and can be used to control the motion phase of biomimetic legged robots. It can also act as a sensory phase estimator, although there is little research on this application. In this study, a novel self-supervised method for learning mistiming detection using CPG is proposed.
FRONTIERS IN NEUROROBOTICS
(2021)
Article
Automation & Control Systems
Andy Wu, Tetsuya Iwasaki
Summary: This article introduces a systematic method for designing a distributed nonlinear controller based on the central pattern generator (CPG) to achieve multiple distinct gaits. By solving eigenstructure assignment problems, the design method allows for adjusting gaits in response to variations in the environment, with numerical examples demonstrating the effectiveness of the approach.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2021)
Article
Engineering, Multidisciplinary
Alex Szorkovszky, Frank Veenstra, Kyrre Glette
Summary: To achieve both autonomy and collaboration, a robot needs to adapt its movement to various stimuli. Legged robots with defined oscillation periods often lack adaptability. In this study, a virtual quadruped robot with a bio-inspired central pattern generator was developed. The robot can spontaneously synchronize its movement to rhythmic stimuli and adjust its gait pattern and frequency accordingly. This technology enables coordinated movement despite differences in morphology and facilitates learning of new movement patterns.
BIOINSPIRATION & BIOMIMETICS
(2023)
Article
Biology
Daniel Kueh, William H. Barnett, Gennady S. Cymbalyuk, Ronald L. Calabrese
Article
Biology
Angela Wenning, Brian J. Norris, Cengiz Gunay, Daniel Kueh, Ronald L. Calabrese
Article
Neurosciences
Daniel Kueh, Jolene Appiah, John Jellies
JOURNAL OF COMPARATIVE NEUROLOGY
(2013)
Article
Biology
Daniel Kueh, John A. Jellies
JOURNAL OF EXPERIMENTAL BIOLOGY
(2012)
Article
Neurosciences
Parker J. Ellingson, William H. Barnett, Daniel Kueh, Alex Vargas, Ronald L. Calabrese, Gennady S. Cymbalyuk
Summary: The study investigates whether the comodulation of two currents could have advantages over a single current in controlling functional bursting patterns of a CPG. The research demonstrates that comodulation of the Na+/K+ pump current and h-current expands the range of functional bursting activity, avoiding transitions into nonfunctional regimes.
JOURNAL OF NEUROSCIENCE
(2021)
Article
Neurosciences
Daniel Kueh, Lisa E. Baker
PSYCHOPHARMACOLOGY
(2007)