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cTBS delivered to the left somatosensory cortex changes its functional connectivity during rest

Nikola Valchev, Branislava Ćurčić-Blake, Remco J. Renken, Alessio Avenanti, Christian Keysers, Valeria Gazzola, Natasha M. Maurits
2015 NeuroImage  
These findings highlight the impact of cTBS delivered over SI on its functional connectivity at rest. Our data may have implications for experimental and therapeutic applications of cTBS over SI.  ...  Here, we explored whether continuous theta burst stimulation (cTBS), a repetitive TMS protocol, administered over SI can change the functional connectivity of the brain at rest, as measured using resting-state  ...  on the formal relationship between the three analyses used and the resting-state networks identified.  ... 
doi:10.1016/j.neuroimage.2015.04.017 pmid:25882754 pmcid:PMC4968652 fatcat:kyyush7btrgazjgs4uqbnstcni

Resting-state fMRI study of brain activation using low-intensity repetitive transcranial magnetic stimulation in rats

Bhedita J. Seewoo, Kirk W. Feindel, Sarah J. Etherington, Jennifer Rodger
2018 Scientific Reports  
Independent component analysis revealed LI-rTMS-induced changes in the resting-state networks (RSN): (i) in the somatosensory cortex, the synchrony of resting activity decreased ipsilaterally following  ...  This is the first rodent study using resting-state functional MRI (rs-fMRI) to examine low-intensity (LI) rTMS effects, in an effort to provide a direct means of comparison between rodent and human studies  ...  The authors acknowledge the facilities, and the scientific and technical assistance of the National Imaging Facility at the Centre for Microscopy, Characterisation & Analysis, The University of Western  ... 
doi:10.1038/s41598-018-24951-6 pmid:29712947 pmcid:PMC5928106 fatcat:llsstrue45bonlqfryssu3inty

Is sham cTBS real cTBS? The effect on EEG dynamics

Alexander Opitz, Wynn Legon, Jerel Mueller, Aaron Barbour, Walter Paulus, William J. Tyler
2015 Frontiers in Human Neuroscience  
In the current study we examined the effects of sham continuous theta burst (cTBS) transcranial magnetic stimulation to the left dorsolateral prefrontal cortex (DLPFC) upon somatosensory evoked potentials  ...  Both real and sham cTBS reduced the amplitude of the frontal P14-N30 SEP and increased local phase coupling in the alpha-beta frequency bands of left frontal cortex.  ...  ACKNOWLEDGMENTS The authors would like to thank Amanda Williams and Michael J. Wesley for help with data collection.  ... 
doi:10.3389/fnhum.2014.01043 pmid:25620925 pmcid:PMC4287020 fatcat:vaurj7hnlfce3iaoncbntmnywm

Asymmetric Interhemispheric Transfer in the Auditory Network: Evidence from TMS, Resting-State fMRI, and Diffusion Imaging

J. Andoh, R. Matsushita, R. J. Zatorre
2015 Journal of Neuroscience  
To test how modulation of auditory cortex (AC) influences functional networks and whether this influence is asymmetrical, the present study measured resting-state fMRI connectivity networks in 17 healthy  ...  We found that TMS to the right AC, but not the left, resulted in widespread connectivity decreases in auditory-and motor-related networks in the resting state.  ...  The result provides a specific quantitative index of the degree of interhemispheric functional interaction between left and right auditory cortices during the resting state scans.  ... 
doi:10.1523/jneurosci.2333-15.2015 pmid:26511249 fatcat:oajohzod4jcyta2kphphhqy2vm

Plasticity-Inducing TMS Protocols to Investigate Somatosensory Control of Hand Function

M. Jacobs, A. Premji, A. J. Nelson
2012 Neural Plasticity  
protocol, specifically events that may lead to metaplasticity within the targeted cortex.  ...  Hand function depends on sensory feedback to direct an appropriate motor response.  ...  In contrast to the MEP suppression following cTBS delivered at 80% active motor threshold [100] , cTBS at 70% rest motor threshold increases MEP amplitude [127, 128] .  ... 
doi:10.1155/2012/350574 pmid:22666612 pmcid:PMC3362131 fatcat:h6ikzjj2gvcsfghwxd4x7ggqj4

Intermittent Theta-Burst Stimulation Over the Suprahyoid Muscles Motor Cortex Facilitates Increased Degree Centrality in Healthy Subjects

Guoqin Zhang, Cuihua Gao, Xiuhang Ruan, Yanli Liu, Yuting Li, E Li, Lisheng Jiang, Lingling Liu, Xin Chen, Xinqing Jiang, Guangqing Xu, Yue Lan (+1 others)
2020 Frontiers in Human Neuroscience  
Compared to the baseline, cTBS resulted in increased DC values in the left inferior frontal gyrus (P < 0.01).  ...  All of the subjects underwent resting-state functional magnetic resonance imaging (rs-fMRI) scanning before and after TBS implementation.  ...  Therefore, when the nodes or DC values change in a region, it indicates that there are abnormal connections for the functional synchronization with other brain regions (Stam et al., 2009) .  ... 
doi:10.3389/fnhum.2020.00200 pmid:32612517 pmcid:PMC7309184 fatcat:opbxbnghj5h3dbwdeiytnf6jri

Area 5 Influences Excitability within the Primary Motor Cortex in Humans

Azra Premji, Navjot Rai, Aimee Nelson, Olaf Sporns
2011 PLoS ONE  
In non-human primates, Brodmann's area 5 (BA 5) has direct connectivity with primary motor cortex (M1), is largely dedicated to the representation of the hand and may have evolved with the ability to perform  ...  Less is known about human BA 5 and its interaction with M1 neural circuits related to hand control.  ...  Acknowledgments The authors thank Sai Yan Brian Lee and Angela Ziluk for their contribution to data collection and analyses. Author Contributions Conceived and designed the experiments: AN AP.  ... 
doi:10.1371/journal.pone.0020023 pmid:21603571 pmcid:PMC3095637 fatcat:5bdcuxil7jh5xo7mqp7und7wiu

Continuous theta burst stimulation over the contralesional sensory and motor cortex enhances motor learning post-stroke

Sean K. Meehan, Elizabeth Dao, Meghan A. Linsdell, Lara A. Boyd
2011 Neuroscience Letters  
For three days, continuous theta burst (cTBS) was delivered over the contralesional hemisphere prior to practicing a serial targeting task. cTBS was delivered over either S1c, contralesional primary motor  ...  In addition to the inter-hemispheric mechanism, the underlying changes in ipsilesional cortex also need to be assessed.  ... 
doi:10.1016/j.neulet.2011.05.237 pmid:21683125 fatcat:54gfeudpxbam5nb6ciictrqvpm

MEP Latencies Predict the Neuromodulatory Effect of cTBS Delivered to the Ipsilateral and Contralateral Sensorimotor Cortex

Gan Huang, André Mouraux, François Tremblay
2015 PLoS ONE  
Methods Here, we recorded MEPs, TMS-evoked brain potentials (TEPs) and somatosensory-evoked potentials (SEPs) to investigate the effects of cTBS delivered over the primary sensorimotor cortex on both the  ...  Recently, it was shown that the highly variable after-effect of continuous theta-burst stimulation (cTBS) of the primary motor cortex (M1) can be predicted by the latency of motorevoked potentials (MEPs  ...  M1 cortex geometry) or whether it is determined by time-dependent changes in brain function (e.g. context-dependent changes in M1 cortex excitability or connectivity) (Fig 8 ).  ... 
doi:10.1371/journal.pone.0133893 pmid:26263505 pmcid:PMC4532482 fatcat:ohx3f6nhlnduxjgjhtbdtdquv4

Deep continuous theta burst stimulation of the operculo-insular cortex selectively affects Aδ-fibre heat pain

Cédric Lenoir, Maxime Algoet, André Mouraux
2018 Journal of Physiology  
left hand before, immediately after and 20 minutes after deep cTBS delivered over the right operculo-insular cortex.  ...  Key points  Deep continuous theta burst stimulation (cTBS) of the right operculo-insular cortex delivered with a double cone coil selectively impairs the ability to perceive thermonociceptive input conveyed  ...  Deep cTBS over the right operculo-insular cortex similarly affects the perception of Aδ-fiber heat stimuli delivered to the left and right hands.  ... 
doi:10.1113/jp276359 pmid:30085357 fatcat:yucjqcnf7vatbjey7br6ki6sxa

Primary somatosensory contribution to action observation brain activity—combining fMRI and cTBS

Nikola Valchev, Valeria Gazzola, Alessio Avenanti, Christian Keysers
2016 Social Cognitive and Affective Neuroscience  
Here, we examine whether BA1/2 and the parietofrontal MNS integrate information by using functional magnetic resonance imaging (fMRI)guided continuous theta-burst stimulation (cTBS) to perturb BA1/2.  ...  However, somatosensory cortices, BA1/2 in particular, are also activated during action execution and observation.  ...  for his help in data analyses regarding the efficiency of regressions.  ... 
doi:10.1093/scan/nsw029 pmid:26979966 pmcid:PMC4967793 fatcat:ujts5imntbcjnevkbxoej3zafy

Changes in interoceptive processes following brain stimulation

Olga Pollatos, Beate M. Herbert, Sandra Mai, Thomas Kammer
2016 Philosophical Transactions of the Royal Society of London. Biological Sciences  
We thank Dr Immo Curio for his support in setting up the laboratory devices and connecting them.  ...  We also thank David Scholz for his support in programming the experimental design, and Julia Braun and Viktoria Probst for their help in data assessment and participants' recruitment.  ...  It has been shown that chronic tinnitus with a functional correlate in primary auditory cortex can be modulated by rTMS [62, 63] , despite the larger distance of the coil to the primary auditory cortex  ... 
doi:10.1098/rstb.2016.0016 pmid:28080973 pmcid:PMC5062104 fatcat:3hbqygqlurcsdflgv52x2ox4b4

Continuous theta-burst stimulation modulates tactile synchronization

Kevin GH Lee, Mark F Jacobs, Michael J Asmussen, Christopher M Zapallow, Mark Tommerdahl, Aimee J Nelson
2013 BMC Neuroscience  
Temporal order judgement (TOJ) is the ability to detect the order of occurrence of two sequentially delivered stimuli.  ...  Application of continuous theta-burst repetitive TMS (cTBS) over primary somatosensory cortex (SI) alters temporal and spatial tactile perception.  ...  Acknowledgements We gratefully acknowledge funding support provided from the Natural Sciences and Engineering Research Council of Canada to AJN.  ... 
doi:10.1186/1471-2202-14-89 pmid:23968301 pmcid:PMC3844444 fatcat:zwetqmauufbyxhi3of4ndqo54y

Somatosensory versus cerebellar contributions to proprioceptive changes associated with motor skill learning: A theta burst stimulation study [article]

Jasmine L Mirdamadi, Hannah J Block
2020 bioRxiv   pre-print
Objective: To determine whether suppressing activity in the cerebellum and somatosensory cortex (S1) affects proprioceptive changes associated with motor skill learning.  ...  The S1 group had impaired proprioceptive function at retention through online changes during practice, whereas the CB group demonstrated offline decrements in proprioceptive function.  ...  Continuous theta burst stimulation (cTBS) was delivered over either the left primary somatosensory cortex (S1), right lateral cerebellum (CB), or right lateral cerebellum with coil tilted away (Sham) B  ... 
doi:10.1101/2020.08.06.239707 fatcat:f6zrrwf3p5gufj6fjn6kspcv7u

Transcranial theta-burst stimulation of primary sensory cortex attenuates somatosensory threat memory in humans [article]

Karita E Ojala, Matthias Staib, Samuel Gerster, Christian C Ruff, Dominik R Bach
2021 bioRxiv   pre-print
Immediately before conditioning, participants received continuous theta-burst transcranial magnetic stimulation (cTBS) to primary somatosensory cortex either in the CS-contralateral or CS-ipsilateral hemisphere  ...  Here, we investigated the role of primary sensory cortex in discriminative threat conditioning with simple and complex somatosensory conditioned stimuli (CS) in healthy humans.  ...  This has also been shown for cTBS of the primary somatosensory cortex at rest, which led to reductions in functional connectivity of S1 with a variety of distant brain regions, including regions important  ... 
doi:10.1101/2021.06.09.447685 fatcat:qnvamiirtnd65dzewnxplx7br4
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