The PowerMAG series is designed for the specific needs of your TMS research. The novel interfacing technology creates a whole new experience with numerous possibilities in combining TMS with other methods.
The hardware solutions implemented in the PowerMAG EEG* allow the stimulator to be phase synchronized with other devices such as MRI.
Its pulses are short and stable hence ensuring reproducibility.
TMS (Transcranial Magnetic Stimulation) is a technique where neuronal activity can be influenced by non-invasively stimulating the cortex through the intact skull bone. The stimulation is caused by short magnetic pulses that induce a current flow in cortical brain areas. Thus brain activity may be triggered or modulated without surgery or externally applied electrodes. TMS is a non-invasive method with several benefits:
Depending on the stimulation protocol, neuronal functionalities can be inhibited or facilitated for a defined period of time. In addition, repetitive TMS, also known as rTMS, may produce longer-lasting effects.
Overactive or underactive areas of the brain can be observed and then focally modulated with TMS e.g. using functional imaging, such as fMRI and PeT. This makes TMS an excellent therapeutic treatment option for psychiatric and neurological disorders. Furthermore, TMS also contributes to research in neuroscience by demonstrating the involvement of brain regions in various cognitive tasks or mental processes.
Full power output (100% intensity) up to 15Hz with all stimulators
No decreasing of pulse power during stimulation with stable pulse amplitudes and width
Full external controllability with analogue, digital and trigger interfaces
Freely setting every single pulse possible (shape, orientation, intensity, timing)
High speed sync out interface
Continuous EEGs can be recorded online without any power line noise or recharging artifacts (not for LAB series)
Usable with all MAG&More Coils
The precision regulation of the PowerMAG power electronics permits the reproducible and exact intensity of pulses with 0.5% steps.
The optimum duration of the stimulus is between 100 and 160 µs (due to the polarization of myelinated axons according to Lapicque's law of stimulus). PowerMAG stimulators are optimized in terms of pulse duration. For example, the pulse length of the half-wave is only 80 µs, and that of the full wave is only 160 µs. The short pulse length permits nerve stimulation using 20-40% less energy.
A decisive factor is to optimize the current/time characteristic of the magnetic pulse. During monophasic pulses, all the stored energy is released during the stimulation pulse. The biphasic pulses work with energy restoration: about 80% of the pulse energy is returned to the energy source.
All pulses are always applied with the set intensity (no decrease of intensity during stimulation), no matter if single pulses are applied or pulse trains.
| STIMULATORS | PowerMAG LAB 30* | PowerMAG LAB 100* | PowerMAG EEG 30* | PowerMAG EEG 100* | PowerMAG EEG ppTMS* | PowerMAG QPS* |
|---|---|---|---|---|---|---|
| Characteristic | Basic Research | Basic Research with TBS | EEG Research | Advanced real-time EEG | All in one | qTBS stimulation |
| Max Stimulation frequency (Hz) | 30 | 100 | 30 | 100 | 100 | 100 (666 in bursts) |
| Waveforms | half/full | half/full | half/full | half/full | full | full |
| rTMS | ||||||
| TBS | ||||||
| Short interval ppTMS | ||||||
| QPS | ||||||
| Coil current invertable | ||||||
| Trigger in/out | ||||||
| EEG compatible | ||||||
| EMG compatible | ||||||
| Analog/digital control |
The PowerMAG series is designed and developed to ensure that you can integrate and control it to your preference in experimental setups.
You can set general parameters such as the intensity, frequency, train length, pulse type and pulse polarity directly in the front panel mode. This mode also allows you to manually emit pulses as previously set up. Recommended for motor threshold hunting and stand-alone, unpatterned TMS applications.
Jitter-free triggering is essential for real-time applications. Our stimulators are equipped with trigger-in and trigger-out BNC connections that allow you to e.g. trigger pulses using the intensity set in front panel and feed the trigger-out TTL signal to external equipment. Example: Triggering the stimulator through Matlab and a parallel port.
Our analogue connection via Control Splitter Box allows the user to set triggers, stimulus intensity and stimulus shape directly through analogue (0-5 V) signals. The advantages of this interface are numerous. Analogue signals are fast, and you have full flexibility over each individual pulse.
The PC-Interface allows you to set up a serial connection between your computer's USB port and the stimulator. Additionally, our serial command library allows you to easily set, start and stop protocol from e.g. Matlab, Python, Signal, or any other program that works with serial connections.
KK Sundby, S Jana, AR Aron - 2021.
Double-blind disruption of right inferior frontal cortex with TMS reduces right frontal beta power for action stopping.
TA Jarczok, F Roebruck, L Pokorny… - 2021.
Single pulse TMS to the temporo-occipital and dorsolateral prefrontal cortex evokes lateralized long latency EEG responses at the stimulation site.
VN Frey, A Thomschewski, PB Langthaler, AB Kunz… - 2021.
Connectivity Analysis during Rubber Hand Illusion—A Pilot TMS-EEG Study in a Patient with SCI.
A Castiglione, AR Aron - 2021.
Unwanted Memory Intrusions Recruit Broad Motor Suppression.
J Jargow, K Zwosta, FM Korb, H Ruge… - 2021.
Low-Frequency TMS Results in Condition-Related Dynamic Activation Changes of Stimulated and Contralateral Inferior Parietal Lobule.
N Yeh, JD Payne, SY Kim, EA Kensinger… - 2021.
Medial prefrontal cortex has a causal role in selectively enhanced consolidation of emotional memories after a 24-hour delay: A TBS study.
HA Velioglu, L Hanoglu, Z Bayraktaroglu… - 2021.
Left lateral parietal rTMS improves cognition and modulates resting brain connectivity in patients with Alzheimer's disease: Possible role of BDNF and oxidative stress.
CM Eick, GG Ambrus, G Kovács - 2021.
Inhibition of the occipital face area modulates the electrophysiological signals of face familiarity: A combined cTBS-EEG study.
MA Salehinejad, M Wischnewski, E Ghanavati… - 2021.
Cognitive functions and underlying parameters of human brain physiology are associated with chronotype.
B Glinski - 2021.
Effects of different inhibitory non-invasive brain stimulation protocols on performance in a motor sequence learning task.
MA Salehinejad, E Ghanavati, J Reinders, J Hengstler… - 2021.
Sleep-dependent upscaled excitability and saturated neuroplasticity in the human brain: From brain physiology to cognition.
L Melo, M Mosayebi-Samani… - 2021.
Dosage-dependent impact of acute serotonin enhancement on transcranial direct current stimulation effects.
L Farnad, E Ghasemian-Shirvan, M Mosayebi-Samani… - 2021.
Exploring and optimizing the neuroplastic effects of anodal transcranial direct current stimulation over the primary motor cortex of older humans.
MM Samani - 2021.
Optimizing the Neuroplastic Effects of Cathodal Transcranial Direct Current Stimulation Over the Primary Motor Cortex and Transferability to Prefrontal Cortex.
KF Kuhn, JJ Grunow, P Leimer, M Lorenz, D Berger… - 2021.
Assessment of magnetic flux density properties of electromagnetic noninvasive phrenic nerve stimulations for environmental safety in an ICU environment.
C Eick - 2021.
The role of occipital temporal cortex in the formation of face familiarity and identity.
L Hanoğlu, M Saricaoglu, G Toprak, NH Yılmaz… - 2020.
Preliminary findings on the role of high-frequency (5Hz) rTMS stimulation on M1 and pre-SMA regions in Parkinson's disease.
N Farnes, BE Juel, AS Nilsen, LG Romundstad… - 2020.
Increased signal diversity/complexity of spontaneous EEG, but not evoked EEG responses, in ketamine-induced psychedelic state in humans.
M Mosayebi-Samani, L Melo, D Agboada… - 2020.
Ca2+ channel dynamics explain the nonlinear neuroplasticity induction by cathodal transcranial direct current stimulation over the primary motor cortex.
M Mosayebi Samani, D Agboada… - 2020.
Probing the relevance of repeated cathodal transcranial direct current stimulation over the primary motor cortex for prolongation of after‐effects.
R Hannah, V Muralidharan, KK Sundby, AR Aron - 2020.
Temporally-precise disruption of prefrontal cortex informed by the timing of beta bursts impairs human action-stopping.
GG Ambrus, T Vékony, K Janacsek… - 2020.
When less is more: Enhanced statistical learning of non-adjacent dependencies after disruption of bilateral DLPFC.
VN Frey, K Butz, G Zimmermann, A Kunz, Y Höller… - 2020.
Research Article Effects of Rubber Hand Illusion and Excitatory Theta Burst Stimulation on Tactile Sensation: A Pilot Study.
VN Frey, K Butz, G Zimmermann, A Kunz, Y Höller… - 2020.
Effects of rubber hand illusion and excitatory theta burst stimulation on tactile sensation: a pilot study.
CM Eick, G Kovács, SM Rostalski, L Röhrig… - 2020.
The occipital face area is causally involved in identity-related visual-semantic associations.
S Jana, R Hannah, V Muralidharan, AR Aron - 2020.
Temporal cascade of frontal, motor and muscle processes underlying human action-stopping.
E Ruiu, R Dubbioso, KH Madsen, O Svolgaard… - 2020.
Probing Context-Dependent Modulations of Ipsilateral Premotor-Motor Connectivity in Relapsing-Remitting Multiple Sclerosis.
CM Eick, GG Ambrus, G Kovács - 2020.
Inhibition of the occipital face area modulates the electrophysiological signals of face familiarity positively: a combined cTBS-EEG study.
JP Bembenek, K Kurczych, B Kłysz, A Cudna… - 2020.
Prediction of Recovery and Outcome Using Motor Evoked Potentials and Brain Derived Neurotrophic Factor in Subacute Stroke.
MI Stefanou, D Galevska, C Zrenner, U Ziemann… - 2020.
Interhemispheric symmetry of µ-rhythm phase-dependency of corticospinal excitability.
C Zrenner, D Galevska, JO Nieminen, D Baur… - 2020.
The shaky ground truth of real-time phase estimation.
S Lorenz, B Alex, T Kammer - 2020.
Ten minutes of transcranial static magnetic field stimulation does not reliably modulate motor cortex excitability.
KYD Miu, C Kok, SS Leung, EYL Chan… - 2020.
Comparison of Repetitive Transcranial Magnetic Stimulation and Transcranial Direct Current Stimulation on Upper Limb Recovery Among Patients With ….
H Xie, Y Chen, Y Lin, X Hu, D Zhang - 2020.
Can't forget: disruption of the right prefrontal cortex impairs voluntary forgetting in a recognition test.
E Ghasemian-Shirvan, L Farnad, M Mosayebi-Samani… - 2020.
Age-related differences of motor cortex plasticity in adults: a transcranial direct current stimulation study.
S Bulteau, A Laurin, C Volteau, C Dert… - 2020.
Cost-utility analysis of curative and maintenance repetitive transcranial magnetic stimulation (rTMS) for treatment-resistant unipolar depression: a randomized ….
T Sokolowski - 2020.
Device for repetitive nerve stimulation in order to break down fat tissue means of inductive magnetic fields.
GG Ambrus, C Amado, L Krohn, G Kovács - 2019.
TMS of the occipital face area modulates cross-domain identity priming.
V Conde, L Tomasevic, I Akopian, K Stanek… - 2019.
The non-transcranial TMS-evoked potential is an inherent source of ambiguity in TMS-EEG studies.
B Berger, B Griesmayr, T Minarik, AL Biel… - 2019.
Dynamic regulation of interregional cortical communication by slow brain oscillations during working memory.
DS Marigold, K Lajoie, T Heed - 2019.
No effect of triple-pulse TMS medial to intraparietal sulcus on online correction for target perturbations during goal-directed hand and foot reaches.
N Farnes, BE Juel, AS Nilsen, LG Romundstad… - 2019.
Increased signal diversity/complexity of spontaneous EEG in humans given sub-anaesthetic doses of ketamine.
ST Hansen, A Hemakom, M Gylling Safeldt… - 2019.
Unmixing oscillatory brain activity by EEG source localization and empirical mode decomposition.
MM Samani, D Agboada, A Jamil, MF Kuo, MA Nitsche - 2019.
Titrating the neuroplastic effects of cathodal transcranial direct current stimulation (tDCS) over the primary motor cortex.
S Mai, J Braun, V Probst, T Kammer, O Pollatos - 2019.
Changes in emotional processing following interoceptive network stimulation with rTMS.
Á Foerster, F Yavari, L Farnad, A Jamil, W Paulus… - 2019.
Effects of electrode angle-orientation on the impact of transcranial direct current stimulation on motor cortex excitability.
E Bröcker, L Van den Heuvel… - 2019.
Accelerated theta-burst repetive transcranial magnetic stimulation for depression in South Africa.
AS Nilsen, BE Juel, JF Storm - 2019.
Measures of states of consciousness during attentional and cognitive load.
J Antczak, J Pera, M Dąbroś, W Koźmiński… - 2019.
The effect of repetitive transcranial magnetic stimulation on motor symptoms in hereditary spastic paraplegia.
BJ Smith, RA Miller, AC Ericsson… - 2019.
Changes in the gut microbiome and fermentation products concurrent with enhanced longevity in acarbose-treated mice.
S Singhai - 2019.
Effect of Adjunctive Quadri–Pulse Stimulation to Left Dorsolateral Prefrontal Cortex on Symptoms of Schizophrenia-A Randomized Sham Controlled Study.
E Denby - 2019.
Vestibular Influences on Neuropsychological Outcomes in UK Military Veterans with Mild Traumatic Brain Injury.
L Meteyard, NP Holmes - 2018.
TMS SMART–scalp mapping of annoyance ratings and twitches caused by transcranial magnetic stimulation.
T Husselbury - 2018.
The factors influencing TMS mapping.
LFM Brich, C Bächle, J Hermsdörfer… - 2018.
Real-Time Prediction of Observed Action Requires Integrity of the Dorsal Premotor Cortex: Evidence From Repetitive Transcranial Magnetic Stimulation.
LP Kate - 2018.
The use of TBS to investigate the involvement of SMAproper and preSMA in a motor-sequencing task.
T Arnold - 2018.
TMS induzierte virtuelle Läsionen im Frontal-und Parietallappen und deren Effekte auf selektive Aufmerksamkeit und Arbeitsgedächtnisspeicherung.
AT Reader, BP Royce, JE Marsh… - 2018.
Repetitive transcranial magnetic stimulation reveals a role for the left inferior parietal lobule in matching observed kinematics during imitation.
L Wittkuhn, B Eppinger, LM Bartsch, F Thurm, FM Korb… - 2018.
Repetitive transcranial magnetic stimulation over dorsolateral prefrontal cortex modulates value-based learning during sequential decision-making.
JH Chae - 2018.
Therapeutic application of transcranial magnetic stimulation and transcranial direct current stimulation in depression.
MF Gutierrez-Herrera - 2018.
Neuroanatomy and rehabilitation of the directional motor deficits associated with unilateral neglect.
Items marked with* are investigational devices and for research use only. CAUTION - Investigational Device. Limited by Federal (or United States) law to investigational use.
