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Theta burst stimulation

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https://www.readbyqxmd.com/read/29909180/parkinsonism-is-associated-with-altered-primary-motor-cortex-plasticity-in-frontotemporal-dementia-primary-progressive-aphasia-variant
#1
Flavio Di Stasio, Suppa Antonio, Fabbrini Andrea, Marsili Luca, Asci Francesco, Conte Antonella, Trebbastoni Alessandro, De Lena Carlo, Berardelli Alfredo
In frontotemporal dementia (FTD), the behavioral variant (bv-FTD) and nonfluent variant of primary progressive aphasia (nfv-PPA) reflect a prominent neurodegenerative involvement of the frontal lobe networks, which may include the premotor and motor areas and thus cause heterogeneous clinical symptoms including parkinsonism. With the technique of transcranial magnetic stimulation, we investigated long-term potentiation- and long-term depression-like plasticity in the primary motor cortex of bv-FTD and nfv-PPA patients, with and without parkinsonism, by using the theta-burst stimulation (TBS) protocol...
May 29, 2018: Neurobiology of Aging
https://www.readbyqxmd.com/read/29904802/an-update-on-repetitive-transcranial-magnetic-stimulation-for-the-treatment-of-co-morbid-pain-and-depressive-symptoms
#2
REVIEW
Jonathan H Hsu, Zafiris J Daskalakis, Daniel M Blumberger
PURPOSE: Review recent meta-analyses and clinical trials investigating the therapeutic use of repetitive transcranial magnetic stimulation (rTMS) for concurrent pain and depressive symptoms. RECENT FINDINGS: Recent meta-analyses have included both pain and depression outcomes in fibromyalgia and chronic pain. Randomized controlled trials have also been conducted in post-herpetic neuralgia, trauma-related headache, and neuropathic pain with attention to both pain and depressive symptoms...
June 14, 2018: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/29896086/reduced-performance-during-a-sentence-repetition-task-by-continuous-theta-burst-magnetic-stimulation-of-the-pre-supplementary-motor-area
#3
Susanne Dietrich, Ingo Hertrich, Florian Müller-Dahlhaus, Hermann Ackermann, Paolo Belardinelli, Debora Desideri, Verena C Seibold, Ulf Ziemann
The pre-supplementary motor area (pre-SMA) is engaged in speech comprehension under difficult circumstances such as poor acoustic signal quality or time-critical conditions. Previous studies found that left pre-SMA is activated when subjects listen to accelerated speech. Here, the functional role of pre-SMA was tested for accelerated speech comprehension by inducing a transient "virtual lesion" using continuous theta-burst stimulation (cTBS). Participants were tested (1) prior to (pre-baseline), (2) 10 min after (test condition for the cTBS effect), and (3) 60 min after stimulation (post-baseline) using a sentence repetition task (formant-synthesized at rates of 8, 10, 12, 14, and 16 syllables/s)...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29895874/intermittent-theta-burst-stimulation-for-upper-limb-dysfunction-and-spasticity-in-spinal-cord-injury-a-single-blind-randomized-feasibility-study
#4
Aref-Ali Gharooni, Krishnan Padmakumari Sivaraman Nair, Debby Hawkins, Ian Scivill, Daniel Hind, Ram Hariharan
STUDY DESIGN: Single-blind, sham-controlled, crossover randomized feasibility study OBJECTIVES: (1) Assess the feasibility of a full-scale trial of intermittent theta-burst stimulation (iTBS) for upper-limb sensorimotor dysfunction following spinal cord injury (SCI). (2) Determine the safety and tolerability of iTBS over primary motor cortex on upper-limb function in people with spinal cord injury (SCI). SETTING: Large Tertiary Spinal Injuries Centre METHODS: Participants with incomplete SCI, suffering with upper-limb spasticity were recruited and randomized to receive active/sham iTBS over the hand representation of the primary motor cortex...
June 12, 2018: Spinal Cord
https://www.readbyqxmd.com/read/29889086/a-feasibility-study-of-combined-intermittent-theta-burst-stimulation-and-modified-constraint-induced-aphasia-therapy-in-chronic-post-stroke-aphasia
#5
Jerzy P Szaflarski, Joseph Griffis, Jennifer Vannest, Jane B Allendorfer, Rodolphe Nenert, Amy W Amara, Victor Sung, Harrison C Walker, Amber N Martin, Victor W Mark, Xiaohua Zhou
PURPOSE: The purpose of this feasibility study was to assess whether combined intermittent theta burst suppression (iTBS) applied to the ipsilesional hemisphere and modified constraint-induced aphasia therapy (mCIAT) are safe and logistically feasible within the time interval associated with iTBS induced long-term potentiation in patients with post-stroke aphasia. We also wanted to determine whether combining priming with iTBS and CIAT improves language functions after treatment. METHODS: Twelve participants received fMRI (semantic decision/tone decision task) and neuropsychological testing of language skills at three time points - before starting the iTBS/mCIAT intervention (T1), immediately after completing 2-week long course of intervention (T2), and at 3-months follow-up (T3)...
June 6, 2018: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/29888792/inter-cortical-modulation-from-premotor-to-motor-plasticity
#6
Ying-Zu Huang, Rou-Shayn Chen, Po-Yu Fong, John C Rothwell, Wen-Li Chuang, Yi-Hsin Weng, Wey-Yil Lin, Chin-Song Lu
KEY POINTS SUMMARY: Plasticity is involved in daily activities but abnormal plasticity may be deleterious. In this study, we found that motor plasticity could be modulated by suppressing the premotor cortex with the theta burst form of repetitive transcranial magnetic stimulation. Such changes in motor plasticity were associated with reduced learning of a simple motor task. We postulate that the premotor cortex adjusts the amount of motor plasticity to modulate motor learning through heterosynaptic metaplasticity...
June 11, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29874582/crucial-role-of-postsynaptic-syntaxin-4-in-mediating-basal-neurotransmission-and-synaptic-plasticity-in-hippocampal-ca1-neurons
#7
Na-Ryum Bin, Ke Ma, Hidekiyo Harada, Chi-Wei Tien, Fiona Bergin, Kyoko Sugita, Thomas T Luyben, Masahiro Narimatsu, Zhengping Jia, Jeffrey L Wrana, Philippe P Monnier, Liang Zhang, Kenichi Okamoto, Shuzo Sugita
Trafficking of neurotransmitter receptors on postsynaptic membranes is critical for basal neurotransmission and synaptic plasticity, yet the underlying mechanisms remain elusive. Here, we investigated the role of syntaxin 4 in postsynaptic hippocampal CA1 neurons by analyzing conditional knockout (syntaxin 4 cKO) mice. We show that syntaxin 4 cKO resulted in reduction of basal neurotransmission without changes in paired-pulse ratios. Both α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) and N-methyl-d-aspartic acid (NMDA) receptor-mediated charge transfers were diminished...
June 5, 2018: Cell Reports
https://www.readbyqxmd.com/read/29867402/investigating-the-neural-basis-of-theta-burst-stimulation-to-premotor-cortex-on-emotional-vocalization-perception-a-combined-tms-fmri-study
#8
Zarinah K Agnew, Michael J Banissy, Carolyn McGettigan, Vincent Walsh, Sophie K Scott
Previous studies have established a role for premotor cortex in the processing of auditory emotional vocalizations. Inhibitory continuous theta burst transcranial magnetic stimulation (cTBS) applied to right premotor cortex selectively increases the reaction time to a same-different task, implying a causal role for right ventral premotor cortex (PMv) in the processing of emotional sounds. However, little is known about the functional networks to which PMv contribute across the cortical hemispheres. In light of these data, the present study aimed to investigate how and where in the brain cTBS affects activity during the processing of auditory emotional vocalizations...
2018: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29867191/the-effect-of-stimulation-interval-on-plasticity-following-repeated-blocks-of-intermittent-theta-burst-stimulation
#9
Nga Yan Tse, Mitchell R Goldsworthy, Michael C Ridding, James P Coxon, Paul B Fitzgerald, Alex Fornito, Nigel C Rogasch
This study assessed the effect of interval duration on the direction and magnitude of changes in cortical excitability and inhibition when applying repeated blocks of intermittent theta burst stimulation (iTBS) over motor cortex. 15 participants received three different iTBS conditions on separate days: single iTBS; repeated iTBS with a 5 minute interval (iTBS-5-iTBS); and with a 15 minute interval (iTBS-15-iTBS). Changes in cortical excitability and short-interval cortical inhibition (SICI) were assessed via motor-evoked potentials (MEPs) before and up to 60 mins following stimulation...
June 4, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29849573/pharmacological-modulation-of-three-modalities-of-ca1-hippocampal-long-term-potentiation-in-the-ts65dn-mouse-model-of-down-syndrome
#10
Jonah J Scott-McKean, Adriano L Roque, Krystyna Surewicz, Mark W Johnson, Witold K Surewicz, Alberto C S Costa
The Ts65Dn mouse is the most studied animal model of Down syndrome. Past research has shown a significant reduction in CA1 hippocampal long-term potentiation (LTP) induced by theta-burst stimulation (TBS), but not in LTP induced by high-frequency stimulation (HFS), in slices from Ts65Dn mice compared with euploid mouse-derived slices. Additionally, therapeutically relevant doses of the drug memantine were shown to rescue learning and memory deficits in Ts65Dn mice. Here, we observed that 1  μ M memantine had no detectable effect on HFS-induced LTP in either Ts65Dn- or control-derived slices, but it rescued TBS-induced LTP in Ts65Dn-derived slices to control euploid levels...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29784588/brain-stimulation-patterns-emulating-endogenous-thalamocortical-input-to-parvalbumin-expressing-interneurons-reduce-nociception-in-mice
#11
Yeowool Huh, Dahee Jung, Taeyoon Seo, Sukkyu Sun, Su Hyun Kim, Hyewhon Rhim, Sooyoung Chung, Chong-Hyun Kim, Youngwoo Kwon, Marom Bikson, Yong-An Chung, Jeansok J Kim, Jeiwon Cho
BACKGROUND: The bursting pattern of thalamocortical (TC) pathway dampens nociception. Whether brain stimulation mimicking endogenous patterns can engage similar sensory gating processes in the cortex and reduce nociceptive behaviors remains uninvestigated. OBJECTIVE: We investigated the role of cortical parvalbumin expressing (PV) interneurons within the TC circuit in gating nociception and their selective response to TC burst patterns. We then tested if transcranial magnetic stimulation (TMS) patterned on endogenous nociceptive TC bursting modulate nociceptive behaviors...
May 18, 2018: Brain Stimulation
https://www.readbyqxmd.com/read/29776789/transdiagnostic-effects-of-ventromedial-prefrontal-cortex-transcranial-magnetic-stimulation-on-cue-reactivity
#12
Tonisha E Kearney-Ramos, Logan T Dowdle, Daniel H Lench, Oliver J Mithoefer, William H Devries, Mark S George, Raymond F Anton, Colleen A Hanlon
BACKGROUND: Elevated frontal and striatal reactivity to drug cues is a transdiagnostic hallmark of substance use disorders. The goal of these experiments was to determine if it is possible to decrease frontal and striatal reactivity to drug cues in both cocaine users and heavy alcohol users through continuous theta burst stimulation (cTBS) to the left ventromedial prefrontal cortex (VMPFC). METHODS: Two single-blinded, within-subject, active sham-controlled experiments were performed wherein neural reactivity to drug/alcohol cues versus neutral cues was evaluated immediately before and after receiving real or sham cTBS (110% resting motor threshold, 3600 pulses, Fp1 location; N = 49: 25 cocaine users [experiment 1], 24 alcohol users [experiment 2]; 196 total functional magnetic resonance imaging scans)...
April 10, 2018: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
https://www.readbyqxmd.com/read/29763711/efficacy-and-acceptability-of-non-invasive-brain-stimulation-for-the-treatment-of-adult-unipolar-and-bipolar-depression-a-systematic-review-and-meta-analysis-of-randomised-sham-controlled-trials
#13
REVIEW
Julian Mutz, Daniel R Edgcumbe, Andre R BrunoniMD, Cynthia H Y FuMD
We examined the efficacy and acceptability of non-invasive brain stimulation in adult unipolar and bipolar depression. Randomised sham-controlled trials of transcranial direct current stimulation (tDCS), transcranial magnetic stimulation (TMS) and theta-burst stimulation (TBS), without co-initiation of another treatment, were included. We analysed effects on response, remission, all-cause discontinuation rates and continuous depression severity measures. Fifty-six studies met our criteria for inclusion (N  = 3,058, mean age = 44...
May 12, 2018: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/29758341/effect-of-zembrin-%C3%A2-and-four-of-its-alkaloid-constituents-on-electric-excitability-of-the-rat-hippocampus
#14
Wilfried Dimpfel, Richard Franklin, Nigel Gericke, Leonie Schombert
ETHNOPHARMACOLOGICAL RELEVANCE: Sceletium tortuosum (Mesembryanthemaceae), a succulent plant indigenous to South Africa. is consumed in the form of teas, decoctions and tinctures and is sometimes smoked and used as snuff. In recent years, Sceletium has received a great deal of commercial interest for relieving stress in healthy people, and for treating a broad range of psychological, psychiatric and inflammatory conditions. MATERIAL AND METHODS: The whole extract (Zembrin®) was tested ex vivo in the hippocampus slice preparation after one week of daily oral administration of 5 and 10 mg/kg...
May 22, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29745547/-research-on-the-effects-of-the-continuous-theta-burst-transcranial-magnetic-stimuli-on-brain-network-in-emotional-processing
#15
Qi Li, Dan Cao, Yingjie Li, Yingying Tang
The aim of this study is to explore the effects of continuous theta-burst transcranial magnetic stimulation (cTBS) on functional brain network in emotion processing. Before and after the intervention of cTBS over left dorsolateral prefrontal cortex (DLPFC) of ten participants who were asked to perform the emotion gender recognition task, we recorded their scalp electroencephalograms (EEG). Then we used the phase synchronization of EEG to measure the connectivity between two nodes. We then calculated the network efficiency to describe the efficiency of information transmission in brain regions...
June 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29742385/the-neurocognitive-mechanisms-underlying-food-cravings-and-snack-food-consumption-a-combined-continuous-theta-burst-stimulation-ctbs-and-eeg-study
#16
Cassandra J Lowe, William R Staines, Felicia Mannochio, Peter A Hall
Regulation of food cravings is thought to be critical for modulating eating behavior, yet we do not fully understand the mechanisms by which cognitive control operates in the eating context. The current study combined rTMS and EEG paradigms to examine the causal role of the left dorsolateral prefrontal cortex (dlPFC) in modulating visceral and behavioral responses to high calorie foods, and the mediational mechanisms underlying this relation. 28 right-handed female participants received both active and sham continuous theta burst stimulation (cTBS; a rTMS variant used to decrease cortical activity) targeting the left dlPFC in a counterbalanced order...
May 6, 2018: NeuroImage
https://www.readbyqxmd.com/read/29740271/a-preliminary-comparison-of-motor-learning-across-different-non-invasive-brain-stimulation-paradigms-shows-no-consistent-modulations
#17
Virginia Lopez-Alonso, Sook-Lei Liew, Miguel Fernández Del Olmo, Binith Cheeran, Marco Sandrini, Mitsunari Abe, Leonardo G Cohen
Non-invasive brain stimulation (NIBS) has been widely explored as a way to safely modulate brain activity and alter human performance for nearly three decades. Research using NIBS has grown exponentially within the last decade with promising results across a variety of clinical and healthy populations. However, recent work has shown high inter-individual variability and a lack of reproducibility of previous results. Here, we conducted a small preliminary study to explore the effects of three of the most commonly used excitatory NIBS paradigms over the primary motor cortex (M1) on motor learning (Sequential Visuomotor Isometric Pinch Force Tracking Task) and secondarily relate changes in motor learning to changes in cortical excitability (MEP amplitude and SICI)...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29733409/neural-correlates-of-auditory-verbal-hallucinations-in-schizophrenia-and-the-therapeutic-response-to-theta-burst-transcranial-magnetic-stimulation
#18
Xingui Chen, Gong-Jun Ji, Chunyan Zhu, Xiaomeng Bai, Lu Wang, Kongliang He, Yaxiang Gao, Longxiang Tao, Fengqiong Yu, Yanghua Tian, Kai Wang
Auditory verbal hallucinations (AVHs) are a core symptom of schizophrenia, and resistant to antipsychotic medication in a substantial proportion of patients. This study aimed to investigate the neural correlates of AVHs in schizophrenia patients and its response to a modified continuous theta-burst stimulation (cTBS) by transcranial magnetic stimulation. In a cross-sectional experiment, resting-state functional magnetic resonance images were collected from 31 AVH schizophrenia patients, 26 non-AVH schizophrenia patients, and 33 sex-/age-matched healthy controls (HCs)...
May 3, 2018: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29730846/the-effects-of-rtms-on-impulsivity-in-normal-adults-a-systematic-review-and-meta-analysis
#19
REVIEW
Cheng-Chang Yang, Birgit Völlm, Najat Khalifa
Impulsivity is a multi-dimensional construct that is regarded as a symptom of many psychiatric disorders. Harm resulting from impulsive behaviour can be substantial for the individuals concerned, for their social network, and for wider society. Therefore, the importance of developing therapeutic interventions to target impulsivity is paramount. We conducted a systematic review and meta-analysis of the literature from AMED, Embase, Medline, and PsycINFO databases on the use of repetitive transcranial magnetic stimulation (rTMS) in healthy adults to modulate different subdomains (motor, temporal and reflection) of impulsivity...
May 5, 2018: Neuropsychology Review
https://www.readbyqxmd.com/read/29730251/effects-of-prefrontal-theta-burst-stimulation-on-brain-function-in-treatment-resistant-depression-a-randomized-sham-controlled-neuroimaging-study
#20
Cheng-Ta Li, Mu-Hong Chen, Chi-Hung Juan, Ren-Shyan Liu, Wei-Chen Lin, Ya-Mei Bai, Tung-Ping Su
BACKGROUND: Theta-burst transcranial magnetic stimulation (TBS) can quickly modulate brain activity and can be used to treat treatment-resistant depression (TRD). Whole-brain analytical research has revealed that left high-frequency PFC rTMS modulates brain activity in anterior cingulate cortex (ACC) and the fronto-cingulo-temporal circuit. We aimed to investigate whether the prefrontal TBS's antidepressant mechanisms involve these regions. METHODS: We designed a randomized, double-blind, sham-controlled neuroimaging study to investigate different mechanisms of TBS [i...
April 23, 2018: Brain Stimulation
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