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. Author manuscript; available in PMC: 2013 Sep 6.
Published in final edited form as: Neuron. 2012 Sep 6;75(5):865–874. doi: 10.1016/j.neuron.2012.07.021

Figure 1. Simplified oculomotor system diagram (A) and the behavioral task (B).

Figure 1

A. A schematic drawing illustrating the major connections of the oculomotor basal ganglia for saccade control. Abbreviations: MT: middle temporal visual area; LIP: lateral intraparietal cortex; FEF: frontal eye field; GPe: external segment of the globus pallidus; STN: subthalamic nucleus; SNr: substantia nigra pars reticulata; SC: superior colliculus; DA: dopamine. B. The monkey decides the direction of random-dot motion and then responds, at a self-determined time, by making a saccade to foveate one of two choice targets. Saccades to the target in the direction of coherent motion (assigned randomly for 0% coherence) are followed by juice reward. Electrical microstimulation is delivered during motion viewing and terminated when the monkey makes a saccade.