Results 21 to 30 of about 214,996 (309)

Neuronal Plasticity and Age-Related Functional Decline in the Motor Cortex

Cells, 2023
Physiological aging causes a decline of motor function due to impairment of motor cortex function, losses of motor neurons and neuromuscular junctions, sarcopenia, and frailty.
Ritsuko Inoue, Hiroshi Nishimune
doaj   +1 more source

Analysis of Time-Dependent Brain Network on Active and MI Tasks for Chronic Stroke Patients.

PLoS ONE, 2015
Several researchers have analyzed brain activities by investigating brain networks. However, there is a lack of the research on the temporal characteristics of the brain network during a stroke by EEG and the comparative studies between motor execution ...
Da-Hye Kim, Leahyun Kim, Wanjoo Park, Won Hyuk Chang, Yun-Hee Kim, Seong-Whan Lee, Gyu Hyun Kwon   +6 more
doaj   +1 more source

Spontaneous activity patterns in human motor cortex replay evoked activity patterns for hand movements

Scientific Reports, 2022
Spontaneous brain activity, measured with resting state fMRI (R-fMRI), is correlated among regions that are co-activated by behavioral tasks. It is unclear, however, whether spatial patterns of spontaneous activity within a cortical region correspond to ...
Tomer Livne, DoHyun Kim, Nicholas V. Metcalf, Lu Zhang, Lorenzo Pini, Gordon L. Shulman, Maurizio Corbetta   +6 more
doaj   +1 more source

Local Differences in Cortical Excitability – A Systematic Mapping Study of the TMS-Evoked N100 Component

Frontiers in Neuroscience, 2021
Transcranial magnetic stimulation (TMS) with simultaneous electroencephalography applied to the primary motor cortex provides two parameters for cortical excitability: motor evoked potentials (MEPs) and TMS-evoked potentials (TEPs).
Daniela Roos, Lea Biermann, Tomasz A. Jarczok, Stephan Bender   +3 more
doaj   +1 more source

What is the functional relevance of reorganization in primary motor cortex after spinal cord injury?

Neurobiology of Disease, 2019
Motor output maps within primary motor cortex are widely distributed and modified by motor skill learning and neurological injury. Functions that these maps represent after spinal cord injury remain debatable.
M.A. Urbin, Dylan A. Royston, Douglas J. Weber, Michael L. Boninger, Jennifer L. Collinger   +4 more
doaj   +1 more source

The cutaneous 'rabbit' illusion affects human primary sensory cortex somatopically [PDF]

, 2006
We used functional magnetic resonance imaging (fMRI) to study neural correlates of a robust somatosensory illusion that can dissociate tactile perception from physical stimulation.
Rees, G., Rees Geraint, Ruff, Christian C; https://orcid.org/, Blankenburg, F., Deichmann, R., Deichmann Ralf, Driver, J., Rees, G, Jon Driver, Driver, J, Blankenburg, F, Christian C Ruff, Deichmann, R, Ralf Deichmann, Driver Jon, Blankenburg Felix, Felix Blankenburg, Geraint Rees, Ruff, C.C., Ruff Christian C   +19 more
core   +1 more source

Regional glucose hypometabolic spread within the primary motor cortex is associated with amyotrophic lateral sclerosis disease progression: A fluoro-deoxyglucose positron emission tomography study

eNeurologicalSci, 2017
Objective: Here we investigate the process of neurodegeneration in amyotrophic lateral sclerosis (ALS). The relationship between the cortical field spreading of glucose metabolic decreases in the primary motor cortex (PMC) and the progression of ...
Hironobu Endo, Kenji Sekiguchi, Takehiro Ueda, Hisatomo Kowa, Fumio Kanda, Tatsushi Toda   +5 more
doaj   +1 more source

Difference between the Effects of Peripheral Sensory Nerve Electrical Stimulation on the Excitability of the Primary Motor Cortex: Examination of the Combinations of Stimulus Frequency and Duration

Brain Sciences, 2022
Peripheral sensory nerve electrical stimulation (PES) excites the primary motor cortex and is expected to improve motor dysfunction post-stroke. However, previous studies have reported a variety of stimulus frequencies and stimulus duration settings, and
Masaaki Sato, Hitoshi Mutai, Jun Iwanami, Anna Noji, Sayaka Sugimoto, Kana Ozawa, Akira Sagari   +6 more
doaj   +1 more source

How transcranial direct current stimulation can modulate implicit motor sequence learning and consolidation: A brief review

Frontiers in Human Neuroscience, 2016
The purpose of this review is to investigate how transcranial direct current stimulation (tDCS) can modulate implicit motor sequence learning and consolidation.
Branislav eSavic, Branislav eSavic, Beat eMeier, Beat eMeier   +3 more
doaj   +1 more source

Muscle and Movement Representations in the Primary Motor Cortex [PDF]

Science, 1999
What aspects of movement are represented in the primary motor cortex (M1): relatively low-level parameters like muscle force, or more abstract parameters like handpath? To examine this issue, the activity of neurons in M1 was recorded in a monkey trained to perform a task that dissociates three major variables of wrist movement: muscle activity ...
S, Kakei, D S, Hoffman, P L, Strick
openaire   +2 more sources