A.) Time triggered average (green light turns on at time = 0, marked by
first vertical green line; green light turns off at second vertical green line)
and raster plot of a cell inhibited by Archaerhodopsin during the sample, delay,
and choice phases. B.) Time triggered average and raster plot of a cell
disinhibited during PV interneuron inhibition during the sample, delay, and
choice phases. C.) Proportions of cells with a significant increase or decrease
in firing rate in response to sample phase green light as determined by
bootstrapping in PV-YFP (N = 179 cells) or PV-Arch (N = 244 cells) animals.