نتایج جستجو برای: brain contralesional corticomotor excitability

تعداد نتایج: 485118  

Journal: :Journal of applied physiology 2006
J M Kalmar E Cafarelli

After fatigue, motor evoked potentials (MEP) elicited by transcranial magnetic stimulation and cervicomedullary evoked potentials elicited by stimulation of the corticospinal tract are depressed. These reductions in corticomotor excitability and corticospinal transmission are accompanied by voluntary activation failure, but this may not reflect a causal relationship. Our purpose was to determin...

Journal: :Neurology 2015
Gary W Thickbroom Mar Cortes Avrielle Rykman Bruce T Volpe Felipe Fregni H Igo Krebs Alvaro Pascual-Leone Dylan J Edwards

OBJECTIVE The nonlesioned motor cortex (M1NL) is thought to be hyperexcitable in patients with subacute or chronic stroke and offers a promising therapeutic target. However, whether M1NL excitability behaves the same for subcortical and cortical strokes is unknown. The aim of the present study was to determine whether cortical, or purely subcortical, strokes have a different effect on M1NL exci...

Journal: :Stroke 2005
Naoyuki Takeuchi Takayo Chuma Yuichiro Matsuo Ichiro Watanabe Katsunori Ikoma

BACKGROUND AND PURPOSE A recent report has demonstrated that the contralesional primary motor cortex (M1) inhibited the ipsilesional M1 via an abnormal transcallosal inhibition (TCI) in stroke patients. We studied whether a decreased excitability of the contralesional M1 induced by 1 Hz repetitive transcranial magnetic stimulation (rTMS) caused an improved motor performance of the affected hand...

Journal: :Restorative neurology and neuroscience 2016
Shahid Bashir Marine Vernet Umer Najib Jennifer Perez Miguel Alonso-Alonso Mark Knobel Woo-Kyoung Yoo Dylan Edwards Alvaro Pascual-Leone

BACKGROUND The net effect of altered interhemispheric interactions between homologous motor cortical areas after unilateral stroke has been previously reported to contribute to residual hemiparesis. Using this framework, we hypothesized that navigated 1 Hz repetitive transcranial magnetic stimulation (rTMS) over the contralesional hemisphere would induce a stronger physiological and behavioural...

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