Results 11 to 20 of about 376,168 (350)

Betz cells of the primary motor cortex [PDF]

open access: yesJournal of Comparative Neurology
AbstractBetz cells, named in honor of Volodymyr Betz (1834–1894), who described them as “giant pyramids” in the primary motor cortex of primates and other mammalian species, are layer V extratelencephalic projection (ETP) neurons that directly innervate α‐motoneurons of the brainstem and spinal cord.
Matthew Nolan   +3 more
openaire   +3 more sources

Dopaminergic signals in primary motor cortex [PDF]

open access: yesInternational Journal of Developmental Neuroscience, 2009
AbstractBrainstem monoamine areas such as the ventral tegmental area (VTA) send dopaminergic projections to the cerebral cortex that are widely distributed across different cortical regions. Whereas the projection to prefrontal areas (PFC) has been studied in detail, little is known about dopaminergic projections to primary motor cortex (M1).
Luft, A R, Schwarz, S
openaire   +3 more sources

The Primary Motor Cortex: The Hub of Motor Learning in Rodents

open access: yesNeuroscience, 2022
The primary motor cortex, a dynamic center for overall motion control and decision making, undergoes significant alterations upon neural stimulation. Over the last few decades, data from numerous studies using rodent models have improved our understanding of the morphological and functional plasticity of the primary motor cortex.
Chaery, Lee   +2 more
openaire   +2 more sources

Segmental reorganization of the leg primary motor area

open access: yesInterdisciplinary Neurosurgery, 2020
Reorganization of eloquent cortex due to neighboring stressors, like tumors and epilepsy, has been previously documented. Here we report reorganization of a subregion of the primary motor cortex due to a slow-growing primary brain tumor.
Zoya A. Voronovich   +4 more
doaj   +1 more source

Directed information flow during laparoscopic surgical skill acquisition dissociated skill level and medical simulation technology

open access: yesnpj Science of Learning, 2022
Virtual reality (VR) simulator has emerged as a laparoscopic surgical skill training tool that needs validation using brain–behavior analysis. Therefore, brain network and skilled behavior relationship were evaluated using functional near-infrared ...
Anil Kamat   +6 more
doaj   +1 more source

Movement Decomposition in the Primary Motor Cortex [PDF]

open access: yesCerebral Cortex, 2018
Abstract A complex action can be described as the composition of a set of elementary movements. While both kinematic and dynamic elements have been proposed to compose complex actions, the structure of movement decomposition and its neural representation remain unknown.
Naama, Kadmon Harpaz   +3 more
openaire   +2 more sources

Isolated shoulder weakness as a result of a cortical infarction in the precentral gyrus [PDF]

open access: yesJournal of Community Hospital Internal Medicine Perspectives, 2015
Since its discovery, our understanding of the primary motor cortex has continued to evolve. The presentations of rare, isolated, motor palsies of small muscle groups have heavily contributed to the characterization of the somatotopic representation of ...
Pouya Entezami, John A. Hopper
doaj   +1 more source

Transcranial direct current stimulation to facilitate neurofunctional rehabilitation in children with autism spectrum disorder: a protocol for a randomized, sham-controlled, double-blind clinical trial

open access: yesFrontiers in Neurology, 2023
BackgroundAnodal transcranial direct current stimulation (tDCS) over the primary motor cortex and cerebellum is gaining prominence in the literature due to its potential to favor learning and motor performance. If administered during motor training, tDCS
Marcela O. Araujo   +9 more
doaj   +1 more source

Inhibition of the primary motor cortex and the upgoing thumb sign

open access: yeseNeurologicalSci, 2017
Background: The upgoing thumb sign has been frequently observed in patients with minor strokes and transient ischemic attacks as an indicator of brain involvement.
Antonia Nucera   +6 more
doaj   +1 more source

Studying the functional connectivity of the primary motor cortex with the binarized cross recurrence plot: The influence of Parkinson's disease.

open access: yesPLoS ONE, 2021
Two new recurrence plot methods (the binary recurrence plot and binary cross recurrence plot) were introduced here to study the long-term dynamic of the primary motor cortex and its interaction with the primary somatosensory cortex, the anterior motor ...
Clara Rodriguez-Sabate   +2 more
doaj   +1 more source

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