Fig. 4
From: Cholinergic manipulations affect sensory responses but not attentional enhancement in macaque MT
a PSTH of full acetylcholine population of two monkeys showing neuronal spiking dynamics for the three attentional conditions (attend-in: red, attend-out: blue, fixation: light blue) during control block (solid line) and injection block (dashed line). b Distribution of injection modulation indices (IMI) for the sensory condition. Light gray depicts the full population fulfilling the first inclusion criteria, and dark gray depicts a subpopulation of cells with significant influence of injection on their firing rate during the fixation condition. Red vertical dashed line indicates median injection modulation for the full population. Shown data is derived from neuronal responses of single units from two monkeys for the preferred stimulus only. c, d Distribution of attentional modulation index (AMI) for control and acetylcholine injection block of the significantly affected cells, showing a decrease (c) or an increase (d) in firing rate. Red vertical dashed lines indicate median attentional modulation