Fig. 7
From: Dynamic brainstem and somatosensory cortical excitability during migraine cycles
SSEPs for paired-pulse stimulation. A Superimposed SSEPs (first and second responses) peaked at 18 ms in response to paired electrical stimulation. B Topographies of peak first and second responses. C S1 current intensity over time for first and second responses. Dashed square indicates peak S1 component. D Acquisition and calculation of S1 gating ratio (inhibitory capability). S1, primary somatosensory cortex