Fig. 2: Activity of an example neuron recorded from the SEF.
From: Preselection of potential target spaces based on partial information by the supplementary eye field
a Raster plots and mean spike density functions of an example neuron in the saccadic choice task. The ordinate represents the instantaneous firing rate (spikes s−1). The plots are arranged such that trials with a certain symbolic cue are grouped in each column, and trials with a chosen target in a certain ___location are shown in the corresponding ___location of the panel. Neuronal activity is aligned with symbolic cue onset and saccade initiation (left and right gray vertical lines, respectively). Light blue shading indicates the period during which a symbolic cue was presented. Gray shading indicates the period from the choice target onset to the go signal (750–1200 ms). The spike waveforms are shown in the upper-left corner. b Merged spike density functions of the neuron shown in (a). The color of each line plot indicates the trial type, as shown below the plot. The color of the horizontal bar above the plot indicates the factors (blue: potential target space; red: target position) represented by the activity as statistically determined. c Raster plots and mean spike density functions of the same neuron are shown in (a) and (b) in the visually guided delayed saccade task. Gray shading indicates the period from the target onset to the go signal (750–1200 ms). Gray vertical bars indicate the fixation initiation and saccade onset times. The spike waveforms are shown in the upper-left corner. d Merged spike density functions of the neuron shown in (c). The color of each line plot indicates the trial type, as shown to the right of the plot. The red horizontal bar above the plot indicates the period during which the neuron exhibited directional selectivity.
