Results 51 to 60 of about 267,721 (337)
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Palliative radiotherapy comprises a significant portion of the radiation treatment workload. Volumetric‐modulated arc therapy (VMAT) improves dose conformity and, in conjunction with flattening filter free (FFF) delivery, can decrease treatment times, both of which are desirable in a population with a high probability of retreatment ...
Madeleine L. Van de Kleut +2 more
wiley +1 more source
Modelling Spontaneous Firing Activity of the Motor Cortex in a Spiking Neural Network with Random and Local Connectivity [PDF]
arXiv, 2023 Computational models of cortical activity provide insight into the mechanisms of higher-order processing in the human brain including planning, perception and the control of movement. Activity in the cortex is ongoing even in the absence of sensory input or discernible movements and is thought to be linked to the topology of cortical circuitry. However,
arxiv
Isolated shoulder weakness as a result of a cortical infarction in the precentral gyrus [PDF]
Journal 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
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 +11 more
doaj +1 more source
New Insights into Motor Cortex [PDF]
Neuron, 2011 An exciting new experiment on the motor cortex of monkeys, by Shenoy and colleagues, begins to elucidate how the neuronal ensemble travels in a systematic fashion through state space. This trajectory through state space may help to explain how the motor cortex sets up and then triggers arm movements.
openaire +2 more sources
Frontiers in Human Neuroscience, 2018 Hemodynamic response to motor execution (ME) and motor imagery (MI) was investigated using functional near-infrared spectroscopy (fNIRS). We used a 31 channel fNIRS system which allows non-invasive monitoring of cerebral oxygenation changes induced by ...
Shijing Wu +5 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 +3 more
doaj +1 more source
Motor cortex hemodynamic response to goal-oriented and non-goal-oriented tasks in healthy subjects
Frontiers in Neuroscience, 2023 BackgroundMotor disorders are one of the world’s major scourges, and neuromotor rehabilitation is paramount for prevention and monitoring plans. In this scenario, exercises and motor tasks to be performed by patients are crucial to follow and assess ...
Michele Lacerenza +11 more
doaj +1 more source
Distribution of active forces in the cell cortex [PDF]
Soft Matter, 2019,15, 6952-6966, 2019 In this work, we study in detail the distribution of stochastic forces generated by the molecular motors activity, in the actin cortex of pre-muscular cells. By combining active and passive rheology experiments, performed on the same micro-bead bound to the actin network through membrane adhesive receptors, we measure the auto-correlation function Cff ...
arxiv +1 more source
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 +3 more
doaj +1 more source