Fig. 2.

Responses of four example single units during PA (black) and FS (pink). Each neuron’s single trial response (Trial # axis refers to different trials) is shown using raster plots. Below the raster plots is the PSTH of each neuron. Solid line plots indicate the neuronal responses when checkerboard pattern is presented first followed by the face stimulus. Neuronal responses when the face is presented first followed by the checkerboard pattern are plotted with dotted lines. The stimulus conditions are also displayed in the uppermost panel. Some cells tend to fire in an earlier phase of the trial and some later. Across neurons, a considerable heterogeneity in their response patterns can be observed. Further examples are displayed in Supplementary Fig. 2