Figure 6.

Example showing the effect of blocking GABA_A receptors in superior colliculus on superior colliculus responses driven by fictive whisking. A, PSTH of unit activity evoked in superior colliculus by passive touch (puff), whisking movement (whisk), and active touch (g60, g200, g600) during control (black) and during application of BMI in superior colliculus (red). Note the large enhancement of evoked responses during block of inhibition. B, Same as A, but FP responses recorded in superior colliculus are shown.