Cathodal Transcranial Direct Current Stimulation Suppresses Ipsilateral Projections to 1 Presumed Propriospinal Neurons of the Proximal Upper Limb 2 3 4
نویسندگان
چکیده
Cathodal transcranial direct current stimulation suppresses ipsilateral projections to 1 presumed propriospinal neurons of the proximal upper limb 2 3 4 Lynley V Bradnam, Cathy M Stinear, Winston D Byblow 5 1 Movement Neuroscience Laboratory, The University of Auckland, Auckland, New Zealand 6 2 Department of Medicine, The University of Auckland, Auckland, New Zealand 7 3 Centre for Brain Research, The University of Auckland, Auckland, New Zealand 8 9 Running Head: Cathodal TDCS suppresses ipsilateral propriospinal neurons 10
منابع مشابه
Cathodal transcranial direct current stimulation suppresses ipsilateral projections to presumed propriospinal neurons of the proximal upper limb.
This study investigated whether cathodal transcranial direct current stimulation (c-tDCS) of left primary motor cortex (M1) modulates excitability of ipsilateral propriospinal premotoneurons (PNs) in healthy humans. Transcranial magnetic stimulation (TMS) of the right motor cortex was used to obtain motor evoked potentials (MEPs) from the left biceps brachii (BB) while participants maintained c...
متن کاملTask - dependent modulation of inputs to proximal upper limb following transcranial 1 direct current stimulation of primary motor cortex 2 3
24 Cathodal transcranial direct current stimulation (c-tDCS) suppresses excitability of 25 primary motor cortex (M1) controlling contralateral hand muscles. This study assessed 26 whether c-tDCS would have similar effects on ipsilateral and contralateral M1 27 projections to a proximal upper limb muscle. Transcranial magnetic stimulation (TMS) of 28 left M1 was used to elicit motor evoked poten...
متن کاملTask-dependent modulation of inputs to proximal upper limb following transcranial direct current stimulation of primary motor cortex.
Cathodal transcranial DC stimulation (c-tDCS) suppresses excitability of primary motor cortex (M1) controlling contralateral hand muscles. This study assessed whether c-tDCS would have similar effects on ipsi- and contralateral M1 projections to a proximal upper limb muscle. Transcranial magnetic stimulation (TMS) of left M1 was used to elicit motor evoked potentials (MEPs) in the left and righ...
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Proximal upper limb muscles are represented bilaterally in primary motor cortex. Goal-directed upper limb movement requires precise control of proximal and distal agonist and antagonist muscles. Failure to suppress antagonist muscles can lead to abnormal movement patterns, such as those commonly experienced in the proximal upper limb after stroke. We examined whether noninvasive brain stimulati...
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Propriospinal premotoneurons (PN) are essential for accurate control of the upper limb. They receive bilateral input from premotor (PM) and primary motor (M1) cortices. In humans, excitability of PNs can be estimated from motor-evoked potentials (MEPs) by pairing a descending volley using transcranial magnetic stimulation (TMS) to summate with an ascending volley from peripheral nerve stimulati...
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