Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
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To explore EEG changes evoked by tonic experimental muscle pain compared to a non-painful vibratory stimulus. ⋯ Our data demonstrate significant and specific topographic EEG changes during tonic muscle pain. Since these modifications differ from those produced by an unstimulated baseline and during non-painful tonic stimulation, they might reflect mechanisms involved in the processing of nociceptive and adverse tonic stimuli.