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TMS and cognition

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https://www.readbyqxmd.com/read/28427299/effects-of-low-frequency-repetitive-transcranial-magnetic-stimulation-on-upper-extremity-motor-recovery-and-functional-outcomes-in-chronic-stroke-patients-a-randomized-controlled-trial
#1
Ayhan Aşkın, Aliye Tosun, Ümit Seçil Demirdal
BACKGROUND: Repetitive transcranial magnetic stimulation (rTMS) was suggested as a preconditioning method that would increase brain plasticity and that it would be optimal to combine rTMS with intensive rehabilitation. OBJECTIVE: To assess the efficacy of inhibitory rTMS on upper extremity motor recovery and functional outcomes in chronic ischemic stroke patients. METHODS: In this randomized controlled trial, experimental group received low-frequency (LF) rTMS to the primary motor cortex of the unaffected side + physical therapy (PT), and control group received PT...
April 20, 2017: Somatosensory & Motor Research
https://www.readbyqxmd.com/read/28396622/transcranial-magnetic-stimulation-reveals-intrinsic-perceptual-and-attentional-rhythms
#2
REVIEW
Laura Dugué, Rufin VanRullen
Oscillatory brain activity has functional relevance for perceptual and cognitive processes, as proven by numerous electrophysiology studies accumulating over the years. However, only within the past two decades have researchers been able to study the causal role of such oscillations using transcranial magnetic stimulation (TMS) technology. Two complementary approaches exist. A majority of research employs rhythmic TMS (rTMS) to entrain oscillatory activity and investigate its effect on targeted brain functions...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28388464/transcranial-magnetic-stimulation-for-treatment-resistant-depression-naturalistic-treatment-outcomes-for-younger-versus-older-patients
#3
Christine A Conelea, Noah S Philip, Agustin G Yip, Jennifer L Barnes, Matthew J Niedzwiecki, Benjamin D Greenberg, Audrey R Tyrka, Linda L Carpenter
BACKGROUND: Repetitive transcranial magnetic stimulation (TMS) has been shown to be safe and effective for treatment-resistant depression (TRD) in the general adult population. Efficacy among older (≥60 years) patients, who have a greater burden of cognitive, physical, and functional impairment compared to their younger counterparts, remains unclear. The current study aimed to characterize antidepressant response to an acute course of TMS therapy among patients aged ≥60 years compared to those <60 years in naturalistic clinical practice settings...
March 29, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28379529/reduced-short-latency-afferent-inhibition-in-prefrontal-but-not-motor-cortex-and-its-association-with-executive-function-in-schizophrenia-a-combined-tms-eeg-study
#4
Yoshihiro Noda, Mera S Barr, Reza Zomorrodi, Robin F H Cash, Tarek K Rajji, Faranak Farzan, Robert Chen, Tony P George, Zafiris J Daskalakis, Daniel M Blumberger
BACKGROUND: Cholinergic dysfunction is increasingly assumed to be involved in the pathophysiology of schizophrenia. Short-latency afferent inhibition (SAI) is a transcranial magnetic stimulation (TMS) paradigm that has been shown to assay central cholinergic activity from the motor cortex (M1). Recently, we established a method to index SAI from the dorsolateral prefrontal cortex (DLPFC), an area implicated in the pathophysiology of schizophrenia. We investigated SAI in M1 and DLPFC in schizophrenia...
April 1, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28348458/vascular-cognitive-impairment-through-the-looking-glass-of-transcranial-magnetic-stimulation
#5
REVIEW
Giuseppe Lanza, Placido Bramanti, Mariagiovanna Cantone, Manuela Pennisi, Giovanni Pennisi, Rita Bella
In the last years, there has been a significant growth in the literature exploiting transcranial magnetic stimulation (TMS) with the aim at gaining further insights into the electrophysiological and neurochemical basis underlying vascular cognitive impairment (VCI). Overall, TMS points at enhanced brain cortical excitability and synaptic plasticity in VCI, especially in patients with overt dementia, and neurophysiological changes seem to correlate with disease process and progress. These findings have been interpreted as part of a glutamate-mediated compensatory effect in response to vascular lesions...
2017: Behavioural Neurology
https://www.readbyqxmd.com/read/28340375/repetitive-tms-in-right-sensorimotor-areas-affects-the-selection-and-completion-of-contralateral-movements
#6
Maria Gutierrez-Herrera, Styrmir Saevarsson, Thomas Huber, Joachim Hermsdörfer, Waltraud Stadler
Although the existence of directional motor deficits (DMD) associated with movement planning and/or execution seems to be widely recognized, neglect and single cell studies examining their neuroanatomical foundation have produced contradictory and inconclusive findings. The present study assessed the occurrence of DMD following the application of repetitive transcranial magnetic stimulation (rTMS) over two regions, as commonly reported in the neglect literature, namely the right middle frontal gyrus (rMFG) and the right angular gyrus (rAG)...
February 24, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28274831/effects-of-prefrontal-bipolar-and-high-definition-transcranial-direct-current-stimulation-on-cortical-reactivity-and-working-memory-in-healthy-adults
#7
Aron T Hill, Nigel C Rogasch, Paul B Fitzgerald, Kate E Hoy
Transcranial direct current stimulation (tDCS) is a well-recognised neuromodulatory technology which has been shown to induce short-lasting changes in motor-cortical excitability. The recent and rapid expansion of tDCS into the cognitive domain, however, necessitates deeper mechanistic understanding of its neurophysiological effects over non-motor brain regions. The present study utilised transcranial magnetic stimulation combined with electroencephalography (TMS-EEG) to probe the immediate and longer-term effects of both a bipolar (BP-tDCS) and more focal 4×1 High-Definition tDCS (HD-tDCS) montage applied over the left DLPFC on TMS-evoked potentials (TEPs) and oscillations in 19 healthy adult participants...
March 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28269604/effects-of-high-frequency-rtms-on-sleep-deprivation-a-pilot-study
#8
D P Martinez-Cancino, J Azpiroz-Leehan, L Jimenez-Angeles, A Garcia-Quintanar, R Santana-Miranda
Transcranial magnetic stimulation is a neurostimulation technique which has the potential to serve as a unique research tool for investigating a wide variety of fields in cognitive neuroscience. TMS has been approved by the FDA to serve as a treatment to depression and has also been used to evaluate its effects among several conditions such as Alzheimer, Parkinson disease, chronic pain and stroke. High frequency TMS has been previously used with the intention to measure and modulate the negative effects of sleep deprivation in cognitive performance, but there is no consensus about the ideal protocol yet...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227862/effects-of-high-frequency-rtms-on-sleep-deprivation-a-pilot-study
#9
D P Martinez-Cancino, J Azpiroz-Leehan, L Jimenez-Angeles, A Garcia-Quintanar, R Santana-Miranda, D P Martinez-Cancino, J Azpiroz-Leehan, L Jimenez-Angeles, A Garcia-Quintanar, R Santana-Miranda, A Garcia-Quintanar, L Jimenez-Angeles, R Santana-Miranda, J Azpiroz-Leehan, D P Martinez-Cancino
Transcranial magnetic stimulation is a neurostimulation technique which has the potential to serve as a unique research tool for investigating a wide variety of fields in cognitive neuroscience. TMS has been approved by the FDA to serve as a treatment to depression and has also been used to evaluate its effects among several conditions such as Alzheimer, Parkinson disease, chronic pain and stroke. High frequency TMS has been previously used with the intention to measure and modulate the negative effects of sleep deprivation in cognitive performance, but there is no consensus about the ideal protocol yet...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28209926/characterization-of-the-influence-of-age-on-gabaa-and-glutamatergic-mediated-functions-in-the-dorsolateral-prefrontal-cortex-using-paired-pulse-tms-eeg
#10
Yoshihiro Noda, Reza Zomorrodi, Robin F H Cash, Mera S Barr, Faranak Farzan, Tarek K Rajji, Robert Chen, Zafiris J Daskalakis, Daniel M Blumberger
Gamma-aminobutyric acid (GABA)ergic and glutamatergic neurotransmissions in the prefrontal cortex decreases with age. Further, cognitive function mediated through the dorsolateral prefrontal cortex (DLPFC) also declines with age. Although neuroimaging studies have demonstrated decreased levels of these substances, direct neurophysiological data investigating the effect of aging in the DLPFC in human subjects is lacking. The advent of transcranial magnetic stimulation (TMS) combined with electroencephalography (EEG) has allowed for the assessment of functional neurotransmission in vivo...
February 16, 2017: Aging
https://www.readbyqxmd.com/read/28209346/reliability-of-tms-phosphene-threshold-estimation-toward-a-standardized-protocol
#11
Chiara Mazzi, Silvia Savazzi, Arman Abrahamyan, Manuela Ruzzoli
BACKGROUND: Phosphenes induced by transcranial magnetic stimulation (TMS) are a subjectively described visual phenomenon employed in basic and clinical research as index of the excitability of retinotopically organized areas in the brain. OBJECTIVE: Phosphene threshold estimation is a preliminary step in many TMS experiments in visual cognition for setting the appropriate level of TMS doses; however, the lack of a direct comparison of the available methods for phosphene threshold estimation leaves unsolved the reliability of those methods in setting TMS doses...
February 2, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28167121/assessing-motor-imagery-in-brain-computer-interface-training-psychological-and-neurophysiological-correlates
#12
Anatoly Vasilyev, Sofya Liburkina, Lev Yakovlev, Olga Perepelkina, Alexander Kaplan
Motor imagery (MI) is considered to be a promising cognitive tool for improving motor skills as well as for rehabilitation therapy of movement disorders. It is believed that MI training efficiency could be improved by using the brain-computer interface (BCI) technology providing real-time feedback on person's mental attempts. While BCI is indeed a convenient and motivating tool for practicing MI, it is not clear whether it could be used for predicting or measuring potential positive impact of the training. In this study, we are trying to establish whether the proficiency in BCI control is associated with any of the neurophysiological or psychological correlates of motor imagery, as well as to determine possible interrelations among them...
February 4, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28132412/dorsomedial-prefrontal-cortex-and-cerebellar-contribution-to-in-group-attitudes-a-transcranial-magnetic-stimulation-study
#13
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/28121798/cortical-and-physical-function-following-mild-traumatic-brain-injury
#14
Alia L Yasen, David R Howell, Li-Shan Chou, Angela M Pazzaglia, Anita D Christie
PURPOSE: To prospectively examine the association between intracortical inhibition and functional recovery following mild traumatic brain injury (mTBI). METHODS: Twenty individuals with mTBI and twenty matched control participants were assessed using transcranial magnetic stimulation (TMS), the Attentional Network Test (ANT), and gait analysis. Hierarchical linear modeling was used to longitudinally examine potential differences between groups and relationships in the pattern of recovery in cortical silent period (CSP) duration, cognitive reaction time, and single and dual-task walking speeds across 5 testing time points...
January 24, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28120010/thirty-years-of-transcranial-magnetic-stimulation-where-do-we-stand
#15
REVIEW
Ulf Ziemann
Transcranial magnetic stimulation (TMS) has been first described 30 years ago, and since then has gained enormous attention by neurologists, psychiatrists, neurosurgeons, clinical neurophysiologists, psychologists, and neuroscientist alike. In the early days, it was primarily used to test integrity of the corticospinal tract. Beyond further developments of TMS in diagnostics, mapping and monitoring of the motor system, major other applications expanded into using TMS as research tool in the cognitive neurosciences, and as therapeutic tool in neurological and psychiatric disease by virtue of inducing long-term change in excitability and connectivity of the stimulated brain networks...
April 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28114421/immediate-effects-of-repetitive-magnetic-stimulation-on-single-cortical-pyramidal-neurons
#16
Jineta Banerjee, Mary E Sorrell, Pablo A Celnik, Galit Pelled
Repetitive Transcranial Magnetic Stimulation (rTMS) has been successfully used as a non-invasive therapeutic intervention for several neurological disorders in the clinic as well as an investigative tool for basic neuroscience. rTMS has been shown to induce long-term changes in neuronal circuits in vivo. Such long-term effects of rTMS have been investigated using behavioral, imaging, electrophysiological, and molecular approaches, but there is limited understanding of the immediate effects of TMS on neurons...
2017: PloS One
https://www.readbyqxmd.com/read/28072659/effects-of-transcranial-magnetic-stimulation-on-the-cognitive-control-of-emotion-potential-antidepressant-mechanisms
#17
Crystal Lantrip, Faith M Gunning, Laura Flashman, Robert M Roth, Paul E Holtzheimer
Depression negatively impacts quality of life and is associated with high mortality rates. Recent research has demonstrated that improvement in depression symptoms with transcranial magnetic stimulation (TMS) to the dorsolateral prefrontal cortex (DLPFC) may involve changes in the cognitive control network, a regulatory system modulating the function of cognitive and emotional systems, composed of the DLPFC, dorsal anterior cingulate, and posterior parietal cortices. Transcranial magnetic stimulation to the DLPFC node of the cognitive control network may have antidepressant efficacy via direct effects on cognitive control processes involved in emotion regulation...
January 9, 2017: Journal of ECT
https://www.readbyqxmd.com/read/28062252/using-neuroimaging-to-individualize-tms-treatment-for-depression-toward-a-new-paradigm-for-imaging-guided-intervention
#18
Bruce M Luber, Simon Davis, Elisabeth Bernhardt, Andrada Neacsiu, Lori Kwapil, Sarah H Lisanby, Timothy J Strauman
The standard clinical technique for using repetitive transcranial magnetic stimulation (rTMS) for major depressive disorder (MDD) is associated with limited efficacy to date. Such limited efficacy may be due to reliance on scalp-based targeting rather than state-of-the-science methods which incorporate fMRI-guided neuronavigation based on a specific model of neurocircuit dysfunction. In this review, we examine such a specific model drawn from regulatory focus theory, which postulates two brain/behavior systems, the promotion and prevention systems, underlying goal pursuit...
March 1, 2017: NeuroImage
https://www.readbyqxmd.com/read/28008690/heavy-alcohol-use-in-adolescence-is-associated-with-altered-cortical-activity-a-combined-tms-eeg-study
#19
Outi Kaarre, Elisa Kallioniemi, Mervi Könönen, Tommi Tolmunen, Virve Kekkonen, Petri Kivimäki, Noora Heikkinen, Florinda Ferreri, Eila Laukkanen, Sara Määttä
Long-term alcohol use affects cognitive and neurophysiological functioning as well as structural brain development. Combining simultaneous electroencephalogram (EEG) recording with transcranial magnetic stimulation (TMS) enables direct, in vivo exploration of cortical excitability and assessment of effective and functional connectivity. In the central nervous system, the effects of alcohol are particularly mediated by alterations in gamma-aminobutyric acid (GABA)ergic neurotransmission, and TMS-evoked potentials (TEPs) N45 and N100 in EEG are known to reflect GABAergic function...
December 23, 2016: Addiction Biology
https://www.readbyqxmd.com/read/27994543/repetitive-tms-on-left-cerebellum-affects-impulsivity-in-borderline-personality-disorder-a-pilot-study
#20
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
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