Usually, there is the need with some tools to apply a proper stimulation. For instance, we used goggles, earphones and a push-button panel (ten push buttons), to monitor patient response (Visual Stim XGA Digital Stereo Commander XG, Resonance Technology).
Stimuli could be administrated in different ways, but a careful procedure is to perform this step by software as automatically as possible. For instance, we use the Stim2 and Presentation software and a dedicated PC. The same PC synchronizes the beginning of stimulation to the beginning of acquisition using a radiofre-quency pulse.
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