Fig. 3: Simultaneous electrophysiological recordings from frontal and supplementary eye fields.
From: Integration of landmark and saccade target signals in macaque frontal cortex visual responses
a The gray ellipse represents the location of the FEF, the red ellipse represents the location of the SEF. b Blow-up of the recording chambers in (a). The connected red and black disks represent the coordinates of the recording chambers, showing the sites (colored dots) of neural recordings for both monkeys [Monkey L (ML), Monkey V (MV)], also confirmed by microstimulation-evoked eye movements. Colored lines indicate the location of the arcuate sulcus within the FEF recording chamber for both monkeys. c Mean (± SD) of the spike-density plots of the visual responses for all FEF (gray) and SEF neurons (red) analyzed in this study. The darker trace represents the mean response of all trials (including low and high responses for all targets), whereas the lighter trace represents the top 10% responses for each neuron, usually corresponding to the ‘hot’ spot of the neuron’s response field. The shaded areas show the temporal windows used for sampling data to quantify the visual response (ranging from 80–180 ms after the target onset).
