Characterization of electrocorticogram high-gamma signal in response to varying upper extremity movement velocity

Brain Structure & Function
Po T WangAn H Do

Abstract

The mechanism by which the human primary motor cortex (M1) encodes upper extremity movement kinematics is not fully understood. For example, human electrocorticogram (ECoG) signals have been shown to modulate with upper extremity movements; however, this relationship has not been explicitly characterized. To address this issue, we recorded high-density ECoG signals from patients undergoing epilepsy surgery evaluation as they performed elementary upper extremity movements while systematically varying movement speed and duration. Specifically, subjects performed intermittent pincer grasp/release, elbow flexion/extension, and shoulder flexion/extension at slow, moderate, and fast speeds. In all movements, bursts of power in the high-[Formula: see text] band (80-160 Hz) were observed in M1. In addition, the amplitude of these power bursts and the area of M1 with elevated high-[Formula: see text] activity were directly proportional to the movement speed. Likewise, the duration of elevated high-[Formula: see text] activity increased with movement duration. Based on linear regression, M1 high-[Formula: see text] power amplitude and duration covaried with movement speed and duration, respectively, with an average [Formula: see text] of...Continue Reading

References

Jun 1, 1974·Electroencephalography and Clinical Neurophysiology·R S Person
Oct 1, 1980·Journal of Neurophysiology·P D Cheney, E E Fetz
Oct 17, 1998·Journal of Neurophysiology·R S TurnerJ M Hoffman
Jul 5, 2003·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·G PfurtschellerL A Schuh
Nov 24, 2004·Neuroscience Letters·K LutzL Jäncke
May 12, 2006·IEEE Transactions on Bio-medical Engineering·Zoran Nenadic, Joel W Burdick
Mar 3, 2007·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Kai J MillerJeffrey G Ojemann
Sep 18, 2007·Journal of Neural Engineering·G SchalkJ R Wolpaw
Nov 21, 2007·Journal of Neuroscience Methods·Tobias PistohlCarsten Mehring
Oct 2, 2009·Journal of Neural Engineering·J KubánekG Schalk
May 22, 2010·Journal of Neural Engineering·Soumyadipta AcharyaNitish V Thakor
Jan 21, 2011·Medical Engineering & Physics·Po T WangZoran Nenadic
Dec 7, 2011·Frontiers in Neuroscience·Z WangGerwin Schalk
Sep 25, 2012·Experimental Brain Research·Nicholas R AndersonDaniel W Moran
Feb 14, 2013·PloS One·Wei WangMichael L Boninger
Jan 9, 2015·Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society·Po T WangAn H Do
Feb 10, 2016·Journal of Neural Engineering·Po T WangZoran Nenadic

❮ Previous
Next ❯

Citations

May 13, 2018·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·E SalariN F Ramsey

❮ Previous
Next ❯

Software Mentioned

ECoG

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Po T WangAn H Do
Journal of Cerebral Blood Flow and Metabolism : Official Journal of the International Society of Cerebral Blood Flow and Metabolism
S M RaoJ S Hyde
Movement Disorders : Official Journal of the Movement Disorder Society
S FagioliM Manfredi
© 2022 Meta ULC. All rights reserved