Functional MRI Study of Vibrotactile Stimulation Effects in Fibromyalgia

The active treatment will involve whole-body sensory stimulation with mechanical stimuli of vibrotactile (pallesthetic) type at a relatively high rate, low intensity and long duration administered at sleep time (a total daily duration of 3 h distributed within a period of 2 h at bedtime and 1 h prior to getting up). The intensity will be 30% of power at bedtime and 45% prior to getting up.