Fig. 2

Representative figures of visual evoked fields (VEFs). The VEFs for the Original image in a child with TD have been shown. a VEF waveforms from the 13–15 sensors in the primary visual cortex. Root mean square values have been presented by a red waveform. The arrow represents the M100 peak. The X-axis indicates the latency in ms. The Y-axis indicates the amplitude in fT. b Isomagnetic field maps at the M100 peak. c Dipole sources overlaid on the individual magnetic resonance images of the participants. Typically developing (TD)