Author

J. A. Beauchamp

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Physiology· 3 Bioengineering· 2

Signature Assays, Organisms & Methods

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Assay:electrophysiology· 5 Organism:human· 4 Approach:experimental assay· 3 Research Focus:cell signaling & trafficking· 2 Research Focus:cell type annotation· 2 Research Focus:clustering· 2 Approach:statistical model· 2 Approach:deep learning· 1

Frequent Co-Authors

O. U. Khurram· 4 shared C. Heckman· 3 shared F. Negro· 3 shared G. E. P. Pearcey· 3 shared C. J. Heckman· 2 shared G. E. Pearcey· 2 shared J. P. A. Dewald· 2 shared C. Wang· 1 shared

Activity by Year

2021-2024 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 29 mutual co-author links

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4 shared papersPhysiology

O. U. Khurram

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Author profile →

5 papers

Recent·Most cited

Voluntary co-contraction of ankle muscles alters motor unit discharge characteristics and reduces estimates of persistent inward currents

M. M. Gomes, S. T. Jenz, J. A. Beauchamp, F. Negro, C. J. Heckman, G. E. P. Pearcey

This study examines how voluntary co-contraction of ankle muscles affects motor unit discharge and reduces persistent inward currents (PICs) in motoneurons.

bioRxiv · Feb 28, 2024Physiology

Intrinsic properties of spinal motoneurons degrade ankle torque control in humans

J. A. Beauchamp, G. E. P. Pearcey, O. U. Khurram, F. Negro, J. P. A. Dewald, C. Heckman

This study shows that intrinsic properties of spinal motoneurons, specifically persistent inward currents, degrade ankle torque control in humans during motor tasks.

bioRxiv · Oct 23, 2023Physiology

A geometric approach to quantifying the neuromodulatory effects of persistent inward currents on single motor unit discharge patterns

J. A. Beauchamp, G. E. P. Pearcey, O. U. Khurram, M. Chardon, C. Wang, R. K. Powers, J. P. A. Dewald, C. Heckman

This paper introduces a geometric method to quantify neuromodulatory and inhibitory effects on motor unit discharge patterns using metrics like brace height and slopes, validated on simulated and human data.

bioRxiv · Oct 6, 2022 · PreprintBioengineering

Antagonist tendon vibration dampens estimates of persistent inward currents in motor units of the human lower limb

G. E. Pearcey, O. U. Khurram, J. A. Beauchamp, F. Negro, C. J. Heckman

This study shows that antagonist tendon vibration reduces estimates of persistent inward currents in human motor units during isometric contractions.

bioRxiv · Aug 2, 2022 · PreprintPhysiology

A computational approach for generating smooth estimates of motor unit discharge rates and visualizing population discharge characteristics

J. A. Beauchamp, O. U. Khurram, J. P. Dewald, C. Heckman, G. E. Pearcey

The paper introduces support vector regression (SVR) for improved smooth estimates of motor unit discharge rates and ensembles for visualizing population discharge characteristics.

bioRxiv · Aug 9, 2021Bioengineering