keyword
MENU ▼
Read by QxMD icon Read
search

Tms cerebellar

keyword
https://www.readbyqxmd.com/read/28938143/contribution-of-transcranial-magnetic-stimulation-to-assessment-of-brain-connectivity-and-networks
#1
REVIEW
Mark Hallett, Riccardo Di Iorio, Paolo Maria Rossini, Jung E Park, Robert Chen, Pablo Celnik, Antonio P Strafella, Hideyuki Matsumoto, Yoshikazu Ugawa
The goal of this review is to show how transcranial magnetic stimulation (TMS) techniques can make a contribution to the study of brain networks. Brain networks are fundamental in understanding how the brain operates. Effects on remote areas can be directly observed or identified after a period of stimulation, and each section of this review will discuss one method. EEG analyzed following TMS is called TMS-evoked potentials (TEPs). A conditioning TMS can influence the effect of a test TMS given over the motor cortex...
September 5, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28928632/neurophysiology-of-the-celiac-brain-disentangling-gut-brain-connections
#2
REVIEW
Manuela Pennisi, Alessia Bramanti, Mariagiovanna Cantone, Giovanni Pennisi, Rita Bella, Giuseppe Lanza
Celiac disease (CD) can be considered a complex multi-organ disorder with highly variable extra-intestinal, including neurological, involvement. Cerebellar ataxia, peripheral neuropathy, seizures, headache, cognitive impairment, and neuropsychiatric diseases are complications frequently reported. These manifestations may be present at the onset of the typical disease or become clinically evident during its course. However, CD subjects with subclinical neurological involvement have also been described, as well as patients with clear central and/or peripheral nervous system and intestinal histopathological disease features in the absence of typical CD manifestations...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28900413/impaired-cerebellum-to-primary-motor-cortex-associative-plasticity-in-parkinson-s-disease-and-spinocerebellar-ataxia-type-3
#3
Ming-Kuei Lu, Jui-Cheng Chen, Chun-Ming Chen, Jeng-Ren Duann, Ulf Ziemann, Chon-Haw Tsai
BACKGROUND: Functional perturbation of the cerebellum (CB)-motor cortex (M1) interactions may underlie pathophysiology of movement disorders, such as Parkinson's disease (PD) and spinocerebellar ataxia type 3 (SCA3). Recently, M1 motor excitability can be bidirectionally modulated in young subjects by corticocortical paired associative stimulation (PAS) on CB and contralateral M1 with transcranial magnetic stimulation (TMS), probably through the cerebello-dentato-thalamo-cortical (CDTC) circuit...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28781049/role-of-the-cerebellum-in-adaptation-to-delayed-action-effects
#4
Liyu Cao, Domenica Veniero, Gregor Thut, Joachim Gross
Actions are typically associated with sensory consequences. For example, knocking at a door results in predictable sounds. These self-initiated sensory stimuli are known to elicit smaller cortical responses compared to passively presented stimuli, e.g., early auditory evoked magnetic fields known as M100 and M200 components are attenuated. Current models implicate the cerebellum in the prediction of the sensory consequences of our actions. However, causal evidence is largely missing. In this study, we introduced a constant delay (of 100 ms) between actions and action-associated sounds, and we recorded magnetoencephalography (MEG) data as participants adapted to the delay...
August 21, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28669908/modulation-of-cognitive-cerebello-cerebral-functional-connectivity-by-lateral-cerebellar-continuous-theta-burst-stimulation
#5
Anuj Rastogi, Robin Cash, Katharine Dunlop, Michael Vesia, Aaron Kucyi, Ayda Ghahremani, Jonathan Downar, Joyce Chen, Robert Chen
Network connectivity measured with resting state functional magnetic resonance imaging (rsfMRI) has revealed the contribution of distinct cerebellar lobules to an array of brain wide networks sub-serving motor and cognitive processes. As distinct cerebellar lobules form relatively accessible nodes of different brain networks, this raises the possibility for site-specific modulation of network connectivity using non-invasive brain stimulation techniques such as transcranial magnetic stimulation (TMS). Continuous theta burst transcranial magnetic stimulation (cTBS) induces long-lasting inhibition of cortical areas...
September 2017: NeuroImage
https://www.readbyqxmd.com/read/28495634/network-targeted-cerebellar-transcranial-magnetic-stimulation-improves-attentional-control
#6
Michael Esterman, Michelle Thai, Hidefusa Okabe, Joseph DeGutis, Elyana Saad, Simon E Laganiere, Mark A Halko
Developing non-invasive brain stimulation interventions to improve attentional control is extremely relevant to a variety of neurological and psychiatric populations, yet few studies have identified reliable biomarkers that can be readily modified to improve attentional control. One potential biomarker of attention is functional connectivity in the core cortical network supporting attention - the dorsal attention network (DAN). We used a network-targeted cerebellar transcranial magnetic stimulation (TMS) procedure, intended to enhance cortical functional connectivity in the DAN...
August 1, 2017: NeuroImage
https://www.readbyqxmd.com/read/28137969/cerebellar-m1-connectivity-changes-associated-with-motor-learning-are-somatotopic-specific
#7
Danny A Spampinato, Hannah J Block, Pablo A Celnik
One of the functions of the cerebellum in motor learning is to predict and account for systematic changes to the body or environment. This form of adaptive learning is mediated by plastic changes occurring within the cerebellar cortex. The strength of cerebellar-to-cerebral pathways for a given muscle may reflect aspects of cerebellum-dependent motor adaptation. These connections with motor cortex (M1) can be estimated as cerebellar inhibition (CBI): a conditioning pulse of transcranial magnetic stimulation delivered to the cerebellum before a test pulse over motor cortex...
March 1, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28132412/dorsomedial-prefrontal-cortex-and-cerebellar-contribution-to-in-group-attitudes-a-transcranial-magnetic-stimulation-study
#8
Lucile Gamond, Chiara Ferrari, Stefania La Rocca, Zaira Cattaneo
We tend to express more positive judgments and behaviors toward individuals belonging to our own group compared to other (out-) groups. In this study, we assessed the role of the cerebellum and of the dorsomedial prefrontal cortex (dmPFC) - two regions critically implicated in social cognition processes - in mediating implicit valenced attitudes toward in-group and out-group individuals. To this aim, we used transcranial magnetic stimulation (TMS) in combination with a standard attitude priming task, in which Caucasian participants had to categorize the valence of a series of adjectives primed by either an in-group or an out-group face...
April 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28029595/pulse-duration-as-well-as-current-direction-determines-the-specificity-of-transcranial-magnetic-stimulation-of-motor-cortex-during-contraction
#9
Ricci Hannah, John C Rothwell
BACKGROUND: Previous research suggested that anterior-posterior (AP) directed currents induced by TMS in motor cortex (M1) activate interneuron circuits different from those activated by posterior-anterior currents (PA). The present experiments provide evidence that pulse duration also determines the activation of specific interneuron circuits. OBJECTIVE: To use single motor unit (SMU) recordings to confirm the difference in onset latencies of motor-evoked potentials (MEPs) evoked by different current directions and pulse durations: AP30, AP120, PA30 and PA120...
January 2017: Brain Stimulation
https://www.readbyqxmd.com/read/27994543/repetitive-tms-on-left-cerebellum-affects-impulsivity-in-borderline-personality-disorder-a-pilot-study
#10
Giulia Zelda De Vidovich, Riccardo Muffatti, Jessica Monaco, Nicoletta Caramia, Davide Broglia, Edgardo Caverzasi, Francesco Barale, Egidio D'Angelo
The borderline personality disorder (BPD) is characterized by a severe pattern of instability in emotional regulation, interpersonal relationships, identity and impulse control. These functions are related to the prefrontal cortex (PFC), and since PFC shows a rich anatomical connectivity with the cerebellum, the functionality of the cerebellar-PFC axis may impact on BPD. In this study, we investigated the potential involvement of cerebello-thalamo-cortical connections in impulsive reactions through a pre/post stimulation design...
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/27895926/non-invasive-brain-stimulation-as-a-tool-to-study-cerebellar-m1-interactions-in-humans
#11
REVIEW
Sara Tremblay, Duncan Austin, Ricci Hannah, John C Rothwell
The recent development of non-invasive brain stimulation techniques such as transcranial magnetic stimulation (TMS) has allowed the non-invasive assessment of cerebellar function in humans. Early studies showed that cerebellar activity, as reflected in the excitability of the dentate-thalamo-cortical pathway, can be assessed with paired stimulation of the cerebellum and the primary motor cortex (M1) (cerebellar inhibition of motor cortex, CBI). Following this, many attempts have been made, using techniques such as repetitive TMS and transcranial electrical stimulation (TES), to modulate the activity of the cerebellum and the dentate-thalamo-cortical output, and measure their impact on M1 activity...
2016: Cerebellum & Ataxias
https://www.readbyqxmd.com/read/27796359/cerebellar-theta-burst-stimulation-modulates-the-neural-activity-of-interconnected-parietal-and-motor-areas
#12
Elias Paolo Casula, Maria Concetta Pellicciari, Viviana Ponzo, Mario Stampanoni Bassi, Domenica Veniero, Carlo Caltagirone, Giacomo Koch
Voluntary movement control and execution are regulated by the influence of the cerebellar output over different interconnected cortical areas, through dentato-thalamo connections. In the present study we applied transcranial magnetic stimulation (TMS) and electroencephalography (EEG) to directly assess the effects of cerebellar theta-burst stimulation (TBS) over the controlateral primary motor cortex (M1) and posterior parietal cortex (PPC) in a group of healthy volunteers. We found a TBS-dependent bidirectional modulation over TMS-evoked activity; specifically, cTBS increased whereas iTBS decreased activity between 100 and 200 ms after TMS, in a similar manner over both M1 and PPC areas...
October 31, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27608482/model-driven-analysis-of-eyeblink-classical-conditioning-reveals-the-underlying-structure-of-cerebellar-plasticity-and-neuronal-activity
#13
Alberto Antonietti, Claudia Casellato, Egidio D'Angelo, Alessandra Pedrocchi
The cerebellum plays a critical role in sensorimotor control. However, how the specific circuits and plastic mechanisms of the cerebellum are engaged in closed-loop processing is still unclear. We developed an artificial sensorimotor control system embedding a detailed spiking cerebellar microcircuit with three bidirectional plasticity sites. This proved able to reproduce a cerebellar-driven associative paradigm, the eyeblink classical conditioning (EBCC), in which a precise time relationship between an unconditioned stimulus (US) and a conditioned stimulus (CS) is established...
September 1, 2016: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/27417041/abnormal-corticospinal-tract-function-and-motor-cortex-excitability-in-non-ataxic-sca2-mutation-carriers-a-tms-study
#14
Luis Velázquez-Pérez, Roberto Rodríguez-Labrada, Reidenis Torres-Vega, Jacqueline Medrano Montero, Yaimeé Vázquez-Mojena, Georg Auburger, Ulf Ziemann
OBJECTIVE: To evaluate if the corticospinal tract is affected in the prodromal stage of spinocerebellar ataxia type 2 (SCA2), prior to development of the cerebellar syndrome. METHODS: A cross-sectional study was conducted in 37 non-ataxic SCA2 mutation carriers and in age- and sex-matched healthy controls. All subjects underwent clinical assessment and transcranial magnetic stimulation to determine corticospinal tract integrity to the right abductor pollicis brevis and tibialis anterior muscles...
August 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27126840/modulation-of-linguistic-prediction-by-tdcs-of-the-right-lateral-cerebellum
#15
R C Miall, J Antony, A Goldsmith-Sumner, S R Harding, C McGovern, J L Winter
It has been postulated recently that the cerebellum contributes the same prediction and learning functions to linguistic processing as it does towards motor control. For example, repetitive TMS over posterior-lateral cerebellum caused a significant loss in predictive language processing, as assessed by the latency of saccades to target items of spoken sentences, using the Visual World task. We aimed to assess the polarity-specific effects of cerebellar TDCS, hypothesising that cathodal TDCS should impair linguistic prediction, and anodal TDCS facilitate it...
June 2016: Neuropsychologia
https://www.readbyqxmd.com/read/26937285/a-tms-investigation-on-the-role-of-the-cerebellum-in-pitch-and-timbre-discrimination
#16
Carlotta Lega, Tomaso Vecchi, Egidio D'Angelo, Zaira Cattaneo
BACKGROUND: Growing neuroimaging and clinical evidence suggests that the cerebellum plays a critical role in perception. In the auditory domain, the cerebellum seems to be important in different aspects of music and sound processing. Here we investigated the possible causal role of the cerebellum in two auditory tasks, a pitch discrimination and a timbre discrimination task. Specifically, participants performed a pitch and a timbre discrimination task prior and after receiving offline low frequency transcranical magnetic stimulation (TMS) over their (right) cerebellum...
2016: Cerebellum & Ataxias
https://www.readbyqxmd.com/read/26849999/anodal-cerebellar-direct-current-stimulation-reduces-facilitation-of-propriospinal-neurons-in-healthy-humans
#17
Muhammed Chothia, Sebastian Doeltgen, Lynley V Bradnam
BACKGROUND: Coordinated muscle synergies in the human upper limb are controlled, in part, by a neural distribution network located in the cervical spinal cord, known as the cervical propriospinal system. Studies in the cat and non-human primate indicate the cerebellum is indirectly connected to this system via output pathways to the brainstem. Therefore, the cerebellum may indirectly modulate excitability of putative propriospinal neurons (PNs) in humans during upper limb coordination tasks...
May 2016: Brain Stimulation
https://www.readbyqxmd.com/read/26529225/theta-burst-stimulation-of-the-cerebellum-modifies-the-tms-evoked-n100-potential-a-marker-of-gaba-inhibition
#18
Allanah Harrington, Graeme David Hammond-Tooke
Theta burst stimulation (TBS) of the cerebellum, a potential therapy for neurological disease, can modulate corticospinal excitability via the dentato-thalamo-cortical pathway, but it is uncertain whether its effects are mediated via inhibitory or facilitatory networks. The aim of this study was to investigate the effects of 30Hz cerebellar TBS on the N100 waveform of the TMS-evoked potential (TEP), a marker of intracortical GABAB-mediated inhibition. 16 healthy participants (aged 18-30 years; 13 right handed and 3 left handed) received 30Hz intermittent TBS (iTBS), continuous TBS (cTBS) or sham stimulation over the right cerebellum, in three separate sessions...
2015: PloS One
https://www.readbyqxmd.com/read/26481247/cerebellar-control-on-prefrontal-motor-connectivity-during-movement-inhibition
#19
Silvia Picazio, Viviana Ponzo, Giacomo Koch
Converging evidence suggests a crucial role of right inferior frontal gyrus (r-IFG) and right pre-supplementary motor area (r-preSMA) in movement inhibition control. The present work was aimed to investigate how the effective connectivity between these prefrontal areas and the primary motor cortex could change depending on the activity of the cerebellar cortex. Paired transcranial magnetic stimulation (TMS) was delivered in healthy subjects over the r-IFG/left primary motor area (l-M1) and over r-preSMA/l-M1 before (100 ms after the fixation cross onset) and 50, 75, 100, 125, and 150 ms after the presentation of a Go/NoGo visual cue establishing the specific time course and the causal interactions of these regions in relation to l-M1 as measured by motor evoked potentials (MEPs)...
December 2016: Cerebellum
https://www.readbyqxmd.com/read/26331040/effects-of-somatosensory-stimulation-on-corticomotor-excitability-in-patients-with-unilateral-cerebellar-infarcts-and-healthy-subjects-preliminary-results
#20
Suzete Nascimento Farias da Guarda, Adriana Bastos Conforto
BACKGROUND: In healthy humans, somatosensory stimulation in the form of 2 h-repetitive peripheral afferent nerve stimulation (SS) increases excitability of the contralateral motor cortex. In this preliminary study, we explored effects of SS on excitability to transcranial magnetic stimulation (TMS) in patients with unilateral cerebellar infarcts and age-matched controls. METHODS: Ten patients with infarcts in one cerebellar hemisphere and six age-matched controls participated in the study...
2014: Cerebellum & Ataxias
keyword
keyword
111369
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"