Fig. 3: Event-related magnetic field (ERMF) distributions and current density reconstructions (CDR) of the Nt component.

The 3D-CDR maps show activity above an arbitrary threshold to illustrate the source maxima at representative time points during successive stages of the backpropagation of source activity in the visual cortex. The waveform replots the hemisphere-collapsed tERL response shown in Fig. 2 to illustrate the approximate latency of the shown CDR and ERMF distributions. The ERMF maps show the field distribution corresponding with the CDR maps. The field lines (blue/red) separated by increments of 2fT. The hot-scale and blue-scale areas rendered onto the dark gray hemispheres display probabilistic maps of retinotopic areas (see “Methods”).