Abstract：
BACKGROUND:In transcranial magnetic stimulation (TMS) a strong, brief current pulse driven through a coil is used for non-invasively stimulating the cortex. Properties of the electric field (E-field) induced by the pulse together with physiological parameters determine the outcome of the stimulation. In research and clinical use, TMS is delivered using a wide range of different coils and stimulator units, all having their own characteristics; however, the parameters of the induced E-field are often inadequately known by the user. OBJECTIVE:To better understand how the use of a specific TMS device may affect the resulting cortical stimulation, our objective was to develop an instrument for automated measurement of the E-fields induced by TMS coils in spherically symmetric conductors approximating the head. METHODS:We built a saline-free, robotized measurement tool based on the triangle construction. The 5-mm-wide measurement probe allows complete sampling of the induced E-field at the studied depth. We used the instrument to characterize TMS coils and stimulators made by two companies. RESULTS:The measurements revealed that all tested stimulators performed as expected, but we also found significant differences between the different stimulators. Measurements of different coil specimens of the same stimulator models agreed with each other. CONCLUSION:The presented TMS calibrator allows a straightforward characterization of the E-fields induced by TMS coils. By performing measurements using this kind of a tool helps in ensuring that an investigator knows the properties of the E-field.
journal_name
Brain Stimuljournal_title
Brain stimulationauthors
Nieminen JO,Koponen LM,Ilmoniemi RJdoi
10.1016/j.brs.2015.01.004subject
Has Abstractpub_date
2015-05-01 00:00:00pages
582-9issue
3eissn
1935-861Xissn
1876-4754pii
S1935-861X(15)00427-1journal_volume
8pub_type
杂志文章abstract：OBJECTIVE:To examine the effects of transcranial direct current stimulation (tDCS) on objective and subjective indexes of exercise performance. DESIGN:Systematic review and meta-analysis. DATA SOURCES:A systematic literature search of electronic databases (PubMed, Web of Science, Scopus, Google Scholar) and reference...
journal_title：Brain stimulation
pub_type： 杂志文章,meta分析
doi：10.1016/j.brs.2018.12.002
更新日期：2019-01-01 00:00:00
abstract：BACKGROUND:In a seminal paper, Galea et al. (Modulation of cerebellar excitability by polarity-specific noninvasive direct current stimulation. 2009. J Neurosci 29, 9115-9122) showed that cerebellar transcranial direct current stimulation (ctDCS) alters cerebellar-M1 connectivity. This effect has been explained by ctDC...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2019.04.002
更新日期：2019-01-01 00:00:00
abstract：BACKGROUND:External trigeminal nerve stimulation (ETNS) is an emergent, non-invasive neurostimulation therapy delivered bilaterally with adhesive skin electrodes. In previous studies, ETNS was associated to a decrease in seizure frequency in patients with focal drug-resistant epilepsy (DRE). OBJECTIVE:To determine the...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2020.06.005
更新日期：2020-01-01 00:00:00
abstract：BACKGROUND:Current density is considered an important factor in determining the outcomes of tDCS, and is determined by the current intensity and electrode size. Previous studies examining the effect of these parameters on motor cortical excitability with small sample sizes reported mixed results. OBJECTIVE/HYPOTHESIS:...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2015.08.003
更新日期：2016-01-01 00:00:00
abstract：BACKGROUND:The efficacy of transcranial magnetic stimulation (TMS) in the treatment of major depression has already been shown. Novel TMS coils allowing stimulation of deeper brain regions have recently been developed and studied. OBJECTIVE:Our study is aimed at exploring the possible efficacy of deep TMS in patients ...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2009.12.001
更新日期：2010-10-01 00:00:00
abstract：BACKGROUND:Combined transcranial magnetic stimulation (TMS) and electroencephalography (EEG) can provide insights into how differing cognitive contexts produce different brain states, through TMS-based measures of effective connectivity. For instance, in a recent study, the amplitude of the TMS-evoked response (TMS-ER)...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2013.11.004
更新日期：2014-03-01 00:00:00
abstract：:The intensity of sound emanating from the discharge of magnetic coils used in repetitive transcranial magnetic stimulation (rTMS) can potentially cause acoustic trauma. Per Occupational Safety and Health Administration (OSHA) standards for safety of noise exposure, hearing protection is recommended beyond restricted l...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2014.01.056
更新日期：2014-05-01 00:00:00
abstract：BACKGROUND:Low-level light therapy (LLLT) with transcranial laser is a non-invasive form of neuroenhancement shown to regulate neuronal metabolism and cognition. Attention bias modification (ABM) is a cognitive intervention designed to improve depression by decreasing negative attentional bias, but to date its efficacy...
journal_title：Brain stimulation
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.brs.2016.05.009
更新日期：2016-09-01 00:00:00
abstract：BACKGROUND:Previous studies have shown that primary motor cortex (M1) excitability is modulated by motor skill learning and that the M1 plays a crucial role in motor memory. However, the following questions remain: (1) At what stage do changes in M1 excitability occur? (2) Are learning-induced changes in leg M1 excitab...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2015.07.025
更新日期：2015-11-01 00:00:00
abstract：BACKGROUND:Temporal lobe epilepsy (TLE) is often associated with memory deficits. Given the putative role for sleep spindles memory consolidation, spindle generators skewed toward the affected lobe in TLE subjects may be a neurophysiological marker of defective memory. Slow-oscillatory transcranial direct current stimu...
journal_title：Brain stimulation
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.brs.2015.01.410
更新日期：2015-05-01 00:00:00
abstract：BACKGROUND:Conventional rTMS protocols for major depression commonly employ stimulation sessions lasting >30 min. However, recent studies have sought to improve costs, capacities, and outcomes by employing briefer protocols such as theta burst stimulation (iTBS). OBJECTIVE:To compare safety, effectiveness, and outcome...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2014.11.002
更新日期：2015-03-01 00:00:00
abstract：BACKGROUND:Theta burst stimulation (TBS) is a pattern of repetitive transcranial magnetic stimulation that has been demonstrated to facilitate or suppress human corticospinal excitability when applied intermittently (iTBS) or continuously (cTBS), respectively. While the fundamental pattern of TBS, consisting of bursts ...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2013.12.007
更新日期：2014-03-01 00:00:00
abstract：BACKGROUND:Animal models of Parkinson's Disease (PD) demonstrated increased facilitatory cortico-striatal activity, reflecting overactive glutamatergic neurotransmission and contributing to the pathophysiology of l-dopa induced dyskinesias (LIDs). OBJECTIVE:To assess different facilitatory intracortical circuits in th...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2019.06.012
更新日期：2019-01-01 00:00:00
abstract：BACKGROUND:Temporal resolution of cortical, auditory processing mechanisms is suggested to be linked to peak frequency of neuronal gamma oscillations in auditory cortex areas (individual gamma frequency, IGF): Individuals with higher IGF tend to have better temporal resolution. HYPOTHESIS:Modulating ongoing gamma acti...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2017.10.008
更新日期：2018-01-01 00:00:00
abstract：BACKGROUND:Accurate identification of cranial midline structures is essential for many targeting techniques that use repetitive transcranial magnetic stimulation (rTMS), including the Beam F3 method used for depression treatment. OBJECTIVE:Evaluate whether a novel, laser-sighted device will assist with more accurate i...
journal_title：Brain stimulation
pub_type： 信件
doi：10.1016/j.brs.2019.07.028
更新日期：2019-01-01 00:00:00
abstract：BACKGROUND:The ability to exert self-control over temptation is a fundamental component of smoking behavior change. Transcranial direct current stimulation (tDCS) of the dorsolateral prefrontal cortex (DLPFC) has been shown to modulate cognitive control circuits. Although prior studies show that stimulation reduces cig...
journal_title：Brain stimulation
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.brs.2015.10.004
更新日期：2016-03-01 00:00:00
abstract：BACKGROUND:Burning mouth syndrome (BMS) is a burning oral sensation without any corresponding abnormal findings. In some cases, BMS is refractory to pharmacologic treatments. Repetitive transcranial magnetic stimulation (rTMS) over left prefrontal cortex induces analgesic effect in both acute and chronic pain. However,...
journal_title：Brain stimulation
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.brs.2015.10.005
更新日期：2016-03-01 00:00:00
abstract：BACKGROUND:Despite recent developments in navigation and modeling techniques, the type and location of the structures that are activated by transcranial magnetic stimulation (TMS) remain unknown. OBJECTIVE:We studied the relationships between electrophysiological measurements and electric fields induced in the brain t...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2017.09.011
更新日期：2018-01-01 00:00:00
abstract：BACKGROUND:Transcranial direct current stimulation (tDCS) was recently shown to promote recovery of voluntary signs of consciousness in some patients in minimally conscious state (MCS). However, it remains unclear why clinical improvement is only observed in a subgroup of patients. OBJECTIVES:In this retrospective stu...
journal_title：Brain stimulation
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.brs.2015.07.024
更新日期：2015-11-01 00:00:00
abstract：BACKGROUND:Transcranial direct current stimulation (tDCS), a neuromodulatory non-invasive brain stimulation technique, has shown promising results in basic and clinical studies. The known interindividual variability of the effects, however, limits the efficacy of the technique. Recently we reported neurophysiological e...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2021.01.016
更新日期：2021-01-28 00:00:00
abstract：BACKGROUND:Repetitive transcranial magnetic stimulation (rTMS) has been proposed for stabilizing the antidepressant effect of sleep deprivation (SD) by preventing the relapse after a night of recovery sleep. In this study, we aimed to replicate these data coming from a small pilot study in a larger patient sample. MET...
journal_title：Brain stimulation
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.brs.2011.02.005
更新日期：2012-04-01 00:00:00
abstract：BACKGROUND:Transcranial direct current stimulation (tDCS) is able to modify cortical excitability and activity in humans. OBJECTIVE:The aim of the present study was to analyze the effects of tDCS of the primary sensory cortex (SI) on thermal and mechanical perception, assessed by quantitative sensory testing (QST). M...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2010.12.002
更新日期：2011-10-01 00:00:00
abstract：BACKGROUND:Repetitive transcranial magnetic stimulation (rTMS) is an effective treatment for depression, but only some individuals respond. Predicting response could reduce patient and clinical burden. Neural activity related to working memory (WM) has been related to mood improvements, so may represent a biomarker for...
journal_title：Brain stimulation
pub_type： 临床试验,杂志文章
doi：10.1016/j.brs.2017.10.015
更新日期：2018-01-01 00:00:00
abstract：BACKGROUND:Although a significant subset of patients with major depressive disorder (MDD) fail to respond to medical or behavioural therapy, deep brain stimulation (DBS) applied to the subgenual cingulate cortex (SCC; sg25) has been shown to reduce depressive symptoms in a subset of patients. This area receives project...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2016.11.013
更新日期：2017-01-01 00:00:00
abstract：BACKGROUND:Transcranial direct current stimulation (tDCS) is a non-invasive method increasingly popular for the treatment of several brain disorders, such as major depression. Despite great enthusiasm and promising results, some studies report discrepant findings and no consensus exists for the clinical use of tDCS. O...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2017.03.012
更新日期：2017-01-01 00:00:00
abstract：BACKGROUND:Repetitive transcranial magnetic stimulation (rTMS) is considered as an effective treatment for adults with major depressive disorder. However, it remains unknown whether rTMS has comparable or better efficacy in adolescents. OBJECTIVE:The current naturalistic study aimed to investigate the efficacy and cli...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2018.09.007
更新日期：2019-01-01 00:00:00
abstract：BACKGROUND:Traditional transcranial magnetic stimulation mapping involves systematically delivering stimuli over a predefined grid. The pseudorandom walk method seeks to improve map acquisition times by abandoning the grid in favour of delivering stimuli randomly over a given area. OBJECTIVES:To i) determine the minim...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2018.07.043
更新日期：2018-01-01 00:00:00
abstract：BACKGROUND:Given that many studies suggest a role of DLPFC-sgACC connectivity in depression and prior research demonstrating that neuromodulation of either of these nodes modulates parasympathetic activity and results in a heart rate deceleration, a new method is proposed to individualize localization of the DLPFC. Thi...
journal_title：Brain stimulation
pub_type： 信件
doi：10.1016/j.brs.2017.05.002
更新日期：2017-01-01 00:00:00
abstract：BACKGROUND:Dorsomedial prefrontal cortex (DMPFC) repetitive transcranial magnetic stimulation (rTMS) is a novel intervention for treatment-refractory depression (TRD). To date, many open-label case series and one randomized controlled trial of modest sample size have provided preliminary evidence that DMPFC-rTMS is an ...
journal_title：Brain stimulation
pub_type： 信件,随机对照试验
doi：10.1016/j.brs.2019.10.020
更新日期：2020-01-01 00:00:00
abstract：BACKGROUND:Dual-site transcranial magnetic stimulation (ds-TMS) is a neurophysiological technique to measure functional connectivity between cortical areas. OBJECTIVE/HYPOTHESIS:To date, no study has used ds-TMS to investigate short intra-hemispheric interactions between the somatosensory areas and primary motor corte...
journal_title：Brain stimulation
pub_type： 杂志文章
doi：10.1016/j.brs.2019.04.009
更新日期：2019-01-01 00:00:00
