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Enhanced Primary Motor Cortex Astrocyte Calcium Signaling With Motor Learning [PDF]

Neural Plasticity
Astrocytes form an integral part of the nervous system and are proposed to modulate neuronal circuits and behavior. The motor cortex plays a key role in the planning and execution of voluntary movements and makes key contributions to motor skill learning.
Ragunathan Padmashri, Anna Dunaevsky
doaj   +2 more sources

Plasticity of the Primary Motor Cortex in Patients with Primary Brain Tumors [PDF]

Neural Plasticity, 2020
There are two neuron-level mechanisms proposed to underlie neural plasticity: recruiting neurons nearby to support the lost function (ipsilesional plasticity) and uncovering latent pathways that can assume the function that was lost (contralesional ...
Nathan W. Kong, William R. Gibb, Suvarna Badhe, Benjamin P. Liu, Matthew C. Tate   +4 more
doaj   +3 more sources

A posture subspace in the primary motor cortex. [PDF]

Neuron
To generate movements, the brain must combine information about movement goal and body posture. The motor cortex (primary motor cortex [M1]) is a key node for the convergence of these information streams. How are posture and goal signals organized within M1's activity to permit the flexible generation of movement commands?
Marino PJ, Bahureksa L, Fisac CF, Oby ER, Smoulder AL, Motiwala A, Degenhart AD, Grigsby EM, Joiner WM, Chase SM, Yu BM, Batista AP.   +11 more
europepmc   +3 more sources

Optogenetic Neuronal Stimulation Promotes Functional Recovery After Spinal Cord Injury

Frontiers in Neuroscience, 2021
Although spinal cord injury (SCI) is the main cause of disability worldwide, there is still no definite and effective treatment method for this condition.
Wei-wei Deng, Guang-yan Wu, Ling-xia Min, Zhou Feng, Hui Chen, Ming-liang Tan, Jian-feng Sui, Hong-liang Liu, Jing-ming Hou   +8 more
doaj   +1 more source

Illusory sensation of movement induced by repetitive transcranial magnetic stimulation. [PDF]

PLoS ONE, 2010
Human movement sense relies on both somatosensory feedback and on knowledge of the motor commands used to produce the movement. We have induced a movement illusion using repetitive transcranial magnetic stimulation over primary motor cortex and dorsal ...
Mark Schram Christensen, Jesper Lundbye-Jensen, Michael James Grey, Alexandra Damgaard Vejlby, Bo Belhage, Jens Bo Nielsen   +5 more
doaj   +1 more source

A longitudinal study of hand motor recovery after sub-acute stroke: a study combined FMRI with diffusion tensor imaging. [PDF]

PLoS ONE, 2013
Previous studies have shown that motor recovery of stroke can be assessed by the cortical activity and the structural integrity of the corticospinal tract (CST), but little is known about the relation between the cortical activity and the structural ...
Wenjuan Wei, Lijun Bai, Jun Wang, Ruwei Dai, Raymond Kai-yu Tong, Yumei Zhang, Zheng Song, Wen Jiang, Chuanying Shi, Mengyuan Li, Lin Ai, Jie Tian   +11 more
doaj   +1 more source

Task-free functional MRI in cervical dystonia reveals multi-network changes that partially normalize with botulinum toxin. [PDF]

PLoS ONE, 2013
Cervical dystonia is characterized by involuntary, abnormal movements and postures of the head and neck. Current views on its pathophysiology, such as faulty sensorimotor integration and impaired motor planning, are largely based on studies of focal hand
Cathérine C S Delnooz, Jaco W Pasman, Christian F Beckmann, Bart P C van de Warrenburg   +3 more
doaj   +1 more source

Aberrant brain oscillatory coupling from the primary motor cortex in children with autism spectrum disorders

NeuroImage: Clinical, 2021
Autism spectrum disorder (ASD) often involves dysfunction in general motor control and motor coordination, in addition to core symptoms. However, the neural mechanisms underlying motor dysfunction in ASD are poorly understood. To elucidate this issue, we
Kyung-min An, Takashi Ikeda, Chiaki Hasegawa, Yuko Yoshimura, Sanae Tanaka, Daisuke N. Saito, Ken Yaoi, Sumie Iwasaki, Tetsu Hirosawa, Ole Jensen, Mitsuru Kikuchi   +10 more
doaj   +1 more source

Dopaminergic signals in primary motor cortex [PDF]

International 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   +4 more sources

Segmental reorganization of the leg primary motor area

Interdisciplinary 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, Kishore Vakamudi, Stefan Posse, Rex Jung, Muhammad Omar Chohan   +4 more
doaj   +1 more source