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Online feedback control of functional electrical stimulation using dorsal root ganglia recordings
2011
2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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In neuroprostheses that use functional electrical stimulation (FES) to restore motor function, closed-loop feedback control may compensate for muscle fatigue, perturbations and nonlinearities in the behavior ...
Kinematic state information is naturally represented in the firing rates of primary afferent neurons, which may be recorded with multi-electrode arrays at the level of the dorsal root ganglia (DRG). ...
Acknowledgments The authors thank members of the Rehabilitation Neural Engineering Lab for their assistance during the animal experiments and with data analysis: Ingrid Albrecht, Chris Ayers, Dennis Bourbeau ...
doi:10.1109/iembs.2011.6091831
pmid:22256011
pmcid:PMC3464480
dblp:conf/embc/BaumanBWGW11
fatcat:7tcxldkqu5bphcudvbbk22oyui
Dimethylarginine dimethylaminohydrolase 1 is involved in spinal nociceptive plasticity
2015
Pain
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in cultured dorsal root ganglia neurons. ...
DDAH-1 was found to be expressed in sensory neurons within both the dorsal root ganglia and spinal dorsal horn; L-291 (N G -[2-Methoxyethyl]-L-arginine methyl ester), a DDAH-1 inhibitor, reduced NO synthesis ...
Conflict of interest statement The authors have no conflicts of interest to declare. ...
doi:10.1097/j.pain.0000000000000269
pmid:26098438
pmcid:PMC4770343
fatcat:zlqzwsjqgbdu7awfvzj4yd7bqy
Spatiotemporal neuromodulation therapies engaging muscle synergies improve motor control after spinal cord injury
2016
Nature Medicine
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Electrical neuromodulation of lumbar segments improves motor control after spinal cord injury in animal models and humans. ...
Computer simulations identified optimal electrode locations to target each synergy through the recruitment of proprioceptive feedback circuits. ...
For each spinal segment, the dorsal root ganglia were identified. The corresponding root was retracted cranially and laterally. ...
doi:10.1038/nm.4025
pmid:26779815
pmcid:PMC5061079
fatcat:tjxhcjtqvbckrmrnfmqelzvdh4
Decoding hind limb kinematics from neuronal activity of the dorsal horn neurons using multiple level learning algorithm
2018
Scientific Reports
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Decoding continuous hind limb joint angles from sensory recordings of neural system provides a feedback for closed-loop control of hind limb movement using functional electrical stimulation. ...
., ankle, knee, and hip joint angles) from the neural activity of a few neurons in the L7 dorsal root ganglia of three cats has been investigated during walking using a linear filter 2,6 . ...
electrical stimulations 8, 9 . ...
doi:10.1038/s41598-017-18971-x
pmid:29330489
pmcid:PMC5766487
fatcat:jzvkxjb4xje7baxp7fjceabpze
Impact of Bioelectronic Medicine on the Neural Regulation of Pelvic Visceral Function
2015
Bioelectronic Medicine
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Modulation of lower urinary tract function has also been induced by stimulation and block of pudendal nerve axons by using a wireless-controlled implantable stimulator in cats (79) . ...
MECHANISMS OF NEUROMODULATION Neuromodulation of pelvic organ functions induced by electrical stimulation of sacral spinal nerve roots or peripheral nerves originating in the lumbosacral segments of the ...
doi:10.15424/bioelectronmed.2015.00003
fatcat:qohu5bcypbfypb3eylol4bj4fm
Neurophysiology and neural engineering: a review
2017
Journal of Neurophysiology
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stimulators, neuroprostheses, cochlear implants, brain-24 computer interface, functional electrical stimulation 25 26 27 nerve. ...
Bladder voiding by combined high frequency electrical pudendal 743 nerve block and sacral root stimulation. Neurourol Urodyn 2007. 744 Boggs JW, Wenzel BJ, Gustafson KJ, and Grill WM. ...
The latest recordings from sensory afferents in freely moving animals were obtained in the context of 508 using dorsal root recordings as feedback signals to control motor NSs. ...
doi:10.1152/jn.00149.2017
pmid:28566462
pmcid:PMC5558026
fatcat:ehccmmdaebdmzdzwigjuyt3p4u
Electrical Activity Suppresses Axon Growth through Cav1.2 Channels in Adult Primary Sensory Neurons
2010
Current Biology
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Primary sensory neurons of the dorsal root ganglia (DRG) regenerate their spinal cord axon if the peripheral nerve axon has previously been cut. ...
We first verified that firing in sensory fibers, as recorded from dorsal roots in vivo, declined after peripheral lesioning but was not altered after central lesioning. ...
F.B. is a recipient of a Career Development Award from the Human Frontier Science Program. ...
doi:10.1016/j.cub.2010.05.055
pmid:20579880
fatcat:gqv72sgxtnfvrpbisiru4kzeb4
The Modulation of Pain by Circadian and Sleep-Dependent Processes: A Review of the Experimental Evidence
[article]
2017
bioRxiv
pre-print
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To do this comparison, we normalize the results from experimental pain studies relative to the range of physiologically-meaningful stimulation levels. ...
To explore the interaction between these two biological processes using modeling, we first compare the magnitude of their effects across a variety of experimental pain studies in humans. ...
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation. ...
doi:10.1101/098269
fatcat:n6rjdqcnvrdmnkhm2smcgv2jku
Microstimulation of the lumbar DRG recruits primary afferent neurons in localized regions of lower limb
2016
Journal of Neurophysiology
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This sensory input might be useful for restoring tactile and proprioceptive feedback to a lowerlimb amputee. dorsal root ganglia; sensory feedback; neuroprostheses; selective stimulation NEW & NOTEWORTHY ...
This study demonstrates the patterns of primary afferent activity that can be evoked by microstimulation of the lumbar dorsal root ganglia. ...
DISCLOSURES No conflicts of interest, financial or otherwise, are declared by the authors. ...
doi:10.1152/jn.00961.2015
pmid:27052583
pmcid:PMC4961745
fatcat:bzcef7zdkvejtjel3d5h35xnme
Flexible microelectrode array for interfacing with the surface of neural ganglia
2018
Journal of Neural Engineering
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The buccal ganglia of invertebrate sea slug Aplysia californica were used to develop handling and recording techniques with ganglionic surface electrode arrays (GSEAs). ...
Objective-The dorsal root ganglia (DRG) are promising nerve structures for sensory neural interfaces because they provide centralized access to primary afferent cell bodies and spinal reflex circuitry. ...
The authors would therefore like to thank the members of those laboratories for support and advice in designing, fabricating, and testing the surface array. In particular, we acknowledge Aileen ...
doi:10.1088/1741-2552/aab55f
pmid:29521279
pmcid:PMC5938739
fatcat:nz25o2mvn5d6lbow3zo5oyqkta
Characterization of mechanosensitive splanchnic nerve afferent fibers innervating the rat stomach
2001
American Journal of Physiology - Gastrointestinal and Liver Physiology
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-Splanchnic nerve fibers innervating the stomach were studied in anesthetized rats; 997 fibers in the T 9 or T10 dorsal roots were identified by electrical stimulation of the splanchnic nerve. ...
Intragastric instillation of 12% glycerol or an inflammatory soup (bradykinin 10 Ϫ5 M, PGE2 10 Ϫ5 M, serotonin 10 Ϫ5 M, histamine 10 Ϫ5 M, and KCl 10 Ϫ3 M) and prior heat stimulation sensitized responses ...
Ozaki is an exchange scientist from the Department of Anatomy, Fukushima Medical University, Fukushima, Japan. ...
doi:10.1152/ajpgi.2001.281.6.g1449
pmid:11705750
fatcat:uspyvo2lbrbkldl3hgihrfshau
A subcortical circuit linking the cerebellum to the basal ganglia engaged in vocal learning
[article]
2017
bioRxiv
pre-print
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Cerebellar signals are transmitted to the basal ganglia via a disynaptic connection through the thalamus and then conveyed to their cortical target and to the premotor nucleus controlling song production ...
These subcortical structures interact indirectly through their respective loops with thalamo-cortical and brainstem networks, and directly via subcortical pathways, but the role of their interaction during ...
by the square root of the product of 675 their auto-correlation function. ...
doi:10.1101/198317
fatcat:fau7xvjvrnhkvgbqvkcbiqw4pi
The Modulation of Pain by Circadian and Sleep-Dependent Processes: A Review of the Experimental Evidence
[chapter]
2017
Association for Women in Mathematics Series
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This proceedings paper is the first in a series of three papers developing mathematical models for the complex relationship between pain and the sleep-wake cycle. ...
Pain sensitivity is also modulated by sleep behavior, with pain sensitivity increasing in response to the build up of homeostatic sleep pressure following sleep deprivation or sleep disruption. ...
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation. ...
doi:10.1007/978-3-319-60304-9_1
fatcat:2yf73euwe5b7hbx74ik6jnpvui
Chill coma in the locust, Locusta migratoria, is initiated by spreading depolarization in the central nervous system
2017
Scientific Reports
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We used thermolimit respirometry and electromyography in whole animals and extracellular and intracellular recording techniques in semi-intact preparations to characterize neural events during chilling ...
The ability of chill-sensitive insects to function at low temperatures limits their geographic ranges. ...
Acknowledgements We thank JD Gantz for help collecting some of the data and for comments on a previous version of the manuscript. ...
doi:10.1038/s41598-017-10586-6
pmid:28860653
pmcid:PMC5579280
fatcat:t6zwijdm7fekjo4p3qxt3zpfy4
Metathoracic neurons integrating intersegmental sensory information in the locust
2002
Journal of Comparative Neurology
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The responses of the interneurons described here shed new light on both local and intersegmental network function in this model system. ...
Neurons of each population have a characteristic pattern of responses to stimulation of the mesothoracic or metathoracic wing nerves, and some respond to tactile stimulation or movements of a hind leg. ...
Neuroanatomy and abbreviations Morphological descriptions are derived from dorsal views of whole ganglia mounted in Canada balsam and from 9 m sections of ganglia embedded in paraffin wax, drawn using ...
doi:10.1002/cne.10140
pmid:11835184
fatcat:qawzxdvihzcoxhjlmpyghtkgpe
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