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Cheap probe for the magnetic field induced by your TMS

I wanted to check the timing of a TMS-protocol using an external trigger, and sometimes i want to demonstrate the current induction in class. MagVenture sells the MagProbe, to be plugged into BNC or DIN. This would allow you to measure the magnetic field induced by the TMS. They also offer a 3-D version, and… Read more »

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Anodal stimulation over M1 might actually have effects on alpha power

Horvath and colleagues published recently two large meta-analysis of effects of tDCS on cognitive measures and neurophysiological measures [1,2]. Essentially, they claim that tDCS has no reliable effects besides MEP modulation. And the effect size of this modulation appears to be decreasing since the first studies on tDCS fifteen years ago. This sounds like very… Read more »

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Neurosensory Effects of Transcranial Alternating Current Stimulation

Probably everyone using transcranial current stimulation has made the experience that stimulation can cause neurosensory effects. This makes blinding the stimulation difficult, or even impossible. Usually, flickering phosphenes and skin sensations are perceived, but we also had subjects reporting feelings of dizziness and pressure. There is evidence that sensations elicited by tDCS fade with stimulation… Read more »