Bilateral somatosensory evoked potentials following intermittent theta-burst repetitive transcranial magnetic stimulation

<p>Abstract</p> <p>Background</p> <p>Intermittent theta-burst stimulation (iTBS) is a form of repetitive transcranial magnetic stimulation that may alter cortical excitability in the primary somatosensory cortex (SI). The present study investigated the effects of iTBS o...

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Main Authors: Ziluk Angela, Premji Azra, Nelson Aimee J
Format: Article
Language:English
Published: BMC 2010-08-01
Series:BMC Neuroscience
Online Access:http://www.biomedcentral.com/1471-2202/11/91
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author Ziluk Angela
Premji Azra
Nelson Aimee J
author_facet Ziluk Angela
Premji Azra
Nelson Aimee J
author_sort Ziluk Angela
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Intermittent theta-burst stimulation (iTBS) is a form of repetitive transcranial magnetic stimulation that may alter cortical excitability in the primary somatosensory cortex (SI). The present study investigated the effects of iTBS on subcortical and early cortical somatosensory evoked potentials (SEPs) recorded over left, iTBS stimulated SI and the right-hemisphere non-stimulated SI. SEPs were recorded before and at 5, 15, and 25 minutes following iTBS.</p> <p>Results</p> <p>Compared to pre-iTBS, the amplitude of cortical potential N20/P25 was significantly increased for 5 minutes from non-stimulated SI and for 15 to 25 minutes from stimulated SI. Subcortical potentials recorded bilaterally remained unaltered following iTBS.</p> <p>Conclusion</p> <p>We conclude that iTBS increases the cortical excitability of SI bilaterally and does not alter thalamocortical afferent input to SI. ITBS may provide one avenue to induce cortical plasticity in the somatosensory cortex.</p>
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spelling doaj.art-63304d39b3d64f00b5de8c25c64735e02022-12-21T18:36:27ZengBMCBMC Neuroscience1471-22022010-08-011119110.1186/1471-2202-11-91Bilateral somatosensory evoked potentials following intermittent theta-burst repetitive transcranial magnetic stimulationZiluk AngelaPremji AzraNelson Aimee J<p>Abstract</p> <p>Background</p> <p>Intermittent theta-burst stimulation (iTBS) is a form of repetitive transcranial magnetic stimulation that may alter cortical excitability in the primary somatosensory cortex (SI). The present study investigated the effects of iTBS on subcortical and early cortical somatosensory evoked potentials (SEPs) recorded over left, iTBS stimulated SI and the right-hemisphere non-stimulated SI. SEPs were recorded before and at 5, 15, and 25 minutes following iTBS.</p> <p>Results</p> <p>Compared to pre-iTBS, the amplitude of cortical potential N20/P25 was significantly increased for 5 minutes from non-stimulated SI and for 15 to 25 minutes from stimulated SI. Subcortical potentials recorded bilaterally remained unaltered following iTBS.</p> <p>Conclusion</p> <p>We conclude that iTBS increases the cortical excitability of SI bilaterally and does not alter thalamocortical afferent input to SI. ITBS may provide one avenue to induce cortical plasticity in the somatosensory cortex.</p>http://www.biomedcentral.com/1471-2202/11/91
spellingShingle Ziluk Angela
Premji Azra
Nelson Aimee J
Bilateral somatosensory evoked potentials following intermittent theta-burst repetitive transcranial magnetic stimulation
BMC Neuroscience
title Bilateral somatosensory evoked potentials following intermittent theta-burst repetitive transcranial magnetic stimulation
title_full Bilateral somatosensory evoked potentials following intermittent theta-burst repetitive transcranial magnetic stimulation
title_fullStr Bilateral somatosensory evoked potentials following intermittent theta-burst repetitive transcranial magnetic stimulation
title_full_unstemmed Bilateral somatosensory evoked potentials following intermittent theta-burst repetitive transcranial magnetic stimulation
title_short Bilateral somatosensory evoked potentials following intermittent theta-burst repetitive transcranial magnetic stimulation
title_sort bilateral somatosensory evoked potentials following intermittent theta burst repetitive transcranial magnetic stimulation
url http://www.biomedcentral.com/1471-2202/11/91
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AT premjiazra bilateralsomatosensoryevokedpotentialsfollowingintermittentthetaburstrepetitivetranscranialmagneticstimulation
AT nelsonaimeej bilateralsomatosensoryevokedpotentialsfollowingintermittentthetaburstrepetitivetranscranialmagneticstimulation