Fig. 3.

Response to flicker stimulation in patients and controls. a) Total power plot of the steady state response averaged over 102 magnetometers for a representative control and patient. b) Envelopes of the 7.5 Hz frequency of each participant (thin lines) and the mean (thick red line). c) Grand mean total power plots (left) for controls and HE-patients (averaged across familiar pictures) of the steady state response averaged over 102 magnetometers.