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Journal of Neurophysiology

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Podcasts created by the Journal of Neurophysiology community

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07:11

JNP Micro Podcasts: Aging and Subcortical Gray...

Journal of Neurophysiology ·

2024/01/23

In this podcast Dr. Peka Christova of The Neuroimaging Research Group, Brain Sciences Center discusses the recently published Short Report titled "Changes of gray matter volumes of subcortical regions across the lifespan: a Human Connectome Project study." NEW & NOTEWORTHY Christova et al. report mixed effects of age on subcortical grey matter volume (GMV) during lifespan (n = 2458, 5-90 yr old, 1113 male, 1345 female). Striatal and cerebellar GMVs decreased linearly with age, more steeply in

05:46

JNP Micro Podcasts: Modulation of corticospinal...

Journal of Neurophysiology ·

2023/12/20

In this episode, Lydiane Lauzier of Université du Québec à Chicoutimi discusses the recently published article “Variation of corticospinal excitability during kinesthetic illusion induced by musculotendinous vibration.” New and Noteworthy: The modulation of corticospinal excitability when perceiving a vibration (VIB)-induced kinesthetic illusion evolves dynamically over time. This modulation might be linked to the delayed occurrence and progressive increase in strength of the illusory perception

07:06

JNP Micro Podcasts ”Four Questions”: Robust Aggregate...

Journal of Neurophysiology ·

2023/12/13

In this podcast, author Jian Carlo Nocon (Boston University) discusses the recently published research titled "A robust and compact population code for competing sounds in auditory cortex." NEW & NOTEWORTHY Little is known about how populations of neurons within cortical circuits encode sensory stimuli in the presence of competing stimuli at other spatial locations. Here, the authors investigate this problem in auditory cortex using a recently proposed information-theoretic approach. They

07:52

JNP Micro Podcasts ”Four Questions”: Essential Tremor...

Journal of Neurophysiology ·

2023/11/17

In this podcast coauthor Daniel Free of Brigham Young University talks about the recently published article titled “Essential tremor accentuates the pattern of tremor-band coherence between upper limb muscles.” NEW & NOTEWORTHY This research characterized the relationships in tremor-band activity between the 15 major superficial upper limb muscles of persons with essential tremor by quantifying the proportion of shared activity (coherence) in the tremor band and by characterizing phase

09:25

JNP Micro Podcasts ”Four Questions”: Task-dependent...

Journal of Neurophysiology ·

2023/11/03

In this podcast Nick Kitchen and Jisung Yuk of Pennsylvania State University discuss the recently published manuscript “Bilateral arm movements are coordinated via task-dependent negotiations between independent and codependent control, but not by a “coupling” control policy.” NEW & NOTEWORTHY Minimization of performance and control costs and efferent coupling between bilaterally homologous muscle groups have been separately hypothesized to describe patterns of bimanual coordination. Here, we

07:28

JNP Micro Podcasts ”Four Questions”: Otolith-ocular...

Journal of Neurophysiology ·

2023/10/30

Margaret Chow and Celia Fernandez Brillet of Johns Hopkins School of Medicine discuss the recently published manuscript titled "Binocular 3-D otolith-ocular reflexes: responses of chinchillas to natural and prosthetic stimulation after ototoxic injury and vestibular implantation." NEW & NOTEWORTHY Previous studies to expand the scope of prosthetic stimulation of the otolith end organs showed that selective stimulation of the utricle and saccule is possible. This article further defines those

09:22

JNP Micro Podcasts: Acetylcholine receptor and...

Journal of Neurophysiology ·

2023/10/16

In this paper first author Kelly H. Lee, and Alex Prosserman, an expert in the field discuss the recently published article titled “Cholinergic depolarization recruits a persistent Ca2+ current in Aplysia bag cell neurons.” NEW & NOTEWORTHY Ionotropic acetylcholine receptors mediate brief synaptic communication, including in bag cell neurons of the sea snail Aplysia. However, this study demonstrates that cholinergic depolarization can open a voltage-gated persistent Ca2+ current, which extends

10:52

JNP Micro Podcasts ”Four Questions”: Elijah Haynes, ...

Journal of Neurophysiology ·

2023/10/10

In this podcast Dr. Elijah Haynes and Dr. Jennifer Jakobi of the University of British Columbia Okanagan, and Dr. Jayne Kalmar of the Wilfrid Laurier University discuss the recently published Systematic Review titled “A systematic review of how cannabinoids affect motoneuron output.” This scoping review involved the synthesis of evidence from literature published before August 2022 about the effects of cannabinoids on quantifiable measures of motoneuron output. It contributes to understanding the

05:45

JNP Micro Podcasts ”Four Questions”: Alexander M. Zero

Journal of Neurophysiology ·

2023/09/15

In this podcast co lead author Alexander M. Zero of The University of Western Ontario discusses the recently published research titled "Motor unit firing rates in young and very old adult males during an isokinetic fatiguing task and short-term recovery in the anconeus muscle." NEW & NOTEWORTHY Maximal motor unit firing rates were recorded during an isokinetic fatiguing protocol and short-term recovery in young and very old adult males. Prior studies were limited to isometric fatiguing tasks

05:26

JNP Micro Podcasts ”Four Questions”: Robert Kass

Journal of Neurophysiology ·

2023/09/08

In this podcast Robert E. Kass of Carnegie Mellon University discusses the recently published review article titled "Identification of interacting neural populations: methods and statistical considerations." Abstract: As improved recording technologies have created new opportunities for neurophysiological investigation, emphasis has shifted from individual neurons to multiple populations that form circuits, and it has become important to provide evidence of cross-population coordinated activity

06:32

JNP Micro Podcasts ”Four Questions”: Xiaoxuan Ren,...

Journal of Neurophysiology ·

2023/09/01

In this podcast Xiaoxuan Ren, Ilhan Bok, Adam Vareberg, and Prof. Aviad Hai of the University of Wisconsin-Madison discuss their recently published Innovative Methodology titled "Stimulation-mediated reverse engineering of silent neural networks." NEW & NOTEWORTHY We introduce a new concept for reverse engineering silent neuronal networks using a supervised learning algorithm combined with stimulation. We quantify the performance of the algorithm and the precision of deriving synaptic weights

10:07

JNP Micro Podcasts ”Four Questions”: Apostolos P....

Journal of Neurophysiology ·

2023/08/25

In our latest podcast Prof. Apostolos P. Georgopoulos discusses recently published Short Report titled "Changes of cortical gray matter volume during development: a Human Connectome Project study." NEW & NOTEWORTHY We report mixed effects of age on cortical gray matter volume during development in a large sample of 649 participants studied in an identical manner (6–21 yr old, 299 males, 350 females). Volumes of 30/35 cortical areas decreased with age, temporal pole increased, and

05:49

JNP Micro Podcasts ”Four Questions”: Todd P. Silverstein

Journal of Neurophysiology ·

2023/08/25

In this podcast Dr. Todd Silverstein of Willamette University discusses his recently published review titled "Lee’s “Transmembrane Electrostatically-Localized Proton” model does NOT offer a better understanding of neuronal transmembrane potentials." NEW & NOTEWORTHY In this manuscript I critique a 2020 J. Neurophysiol. paper by James W. Lee. His TELP hypothesis 1) mispredicts the resting neuron’s excess of external chloride; 2) predicts the preponderance of surface H+ over Na+ using ΔG°

07:06

JNP Micro Podcasts ”Four Questions”: Mitchell Adrien...

Journal of Neurophysiology ·

2023/08/11

In this micro podcast Mitchell Adrien St. Pierre and Minoru Shinohara of the Georgia Institute of Technology discuss their recently published manuscript "Transcutaneous vagus nerve stimulation at nonspecific timings during training can compromise motor adaptation in healthy humans." NEW & NOTEWORTHY Adding vagus nerve stimulation via implanted electrodes during motor training can facilitate motor recovery in disabled animals and humans. No study examined the effect of transcutaneous vagus

09:26

JNP Micro Podcasts ”Four Questions”: Tea...

Journal of Neurophysiology ·

2023/08/07

In this micro podcast Dr. Tea Lulic-Kuryllo and Dr. David Lipps of the University of Michigan discuss their recently published research titled "Assessing shoulder muscle stretch reflexes following breast cancer treatment and postmastectomy breast reconstruction." NEW & NOTEWORTHY Shoulder muscle stretch reflexes may be impacted following postmastectomy breast reconstruction and chemoradiation. Here, we examined short- and long-latency shoulder muscle stretch reflexes in two experiments

09:33

JNP Micro Podcasts ”Four Questions”: Aiko Thompson...

Journal of Neurophysiology ·

2023/07/28

In this podcast Aiko Thompson and Alan Phipps of the Medical University of South Carolina talk about their recently published manuscript titled "Altered cutaneous reflexes to non-noxious stimuli in the triceps surae of people with chronic incomplete spinal cord injury" NEW & NOTEWORTHY This study examined modulation of the triceps surae cutaneous reflexes during standing and walking and the relationship between cutaneous and H-reflexes in people with chronic incomplete spinal cord injury

07:24

JNP Micro Podcasts ”Four Questions”: Johannes Keyser,...

Journal of Neurophysiology ·

2023/07/17

In this podcast Johannes Keyser (Justus Liebig University Giessen) and Leonie Oostwoud Wijdenes (Radboud University Nijmegen) talk about their recently published research "Late integration of vision and proprioception during perturbed reaches." NEW & NOTEWORTHY Both visual and proprioceptive signals provide information about arm state during reaching. By perturbing the perceived, but not the actual, position of the hand in both modalities using visual disturbances and muscle vibration, we

04:36

JNP Micro Podcasts ”Four Questions”: Adalee J. Lube,...

Journal of Neurophysiology ·

2023/07/13

Adalee J. Lube and Bruce Carlson of Washington University in St. Louis discuss their recently published manuscript "Spike timing-dependent plasticity alters electrosensory neuron synaptic strength in vitro but does not consistently predict changes in sensory tuning in vivo" in our newest micro podcast series. NEW & NOTEWORTHY We replicated behaviorally relevant temporal patterns of synaptic activity in vitro and used the same patterns during sensory stimulation in vivo. There was a Hebbian

09:24

JNP Micro Podcasts ”Four Questions”: Jan-Marino...

Journal of Neurophysiology ·

2023/06/09

Listen to our new micro podcast series where authors, Nicholas J. Burgraff and Jan-Marino (Nino) Ramirez of the Center for Integrative Brain Research, Seattle Children’s Research Institute discuss their recently published research "Inspiratory rhythm generation is stabilized by Ih". Follow JNP on Twitter and Facebook Listen to other podcasts produced by the American Physiological Society

49:15

The Cortical Evoked Potential Corresponds with Deep...

Journal of Neurophysiology ·

2023/03/13

In this podcast senior author Prof. Warren Grill of Duke University discusses his published manuscript "The cortical evoked potential corresponds with deep brain stimulation efficacy in rats" with Editor in Chief Prof. Nino Ramirez. In this paper the authors characterize a new potential biomarker for deep brain stimulation (DBS), the cortical evoked potential (cEP), and demonstrate that it exhibits a robust correlation with motor behaviors as a function of stimulation frequency. The cEP may thus be

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