Fig. 2: Gain of pursuit initiation increases with target size.
From: Neural structure of a sensory decoder for motor control
a Conceptual circuit model where neurons in the middle temporal area (MT) drive pursuit initiation through (at least) two parallel pathways: a direct pathway to the cerebellum and an indirect pathway for gain control through the smooth eye movement region of the frontal eye fields, FEFsem. Arrows indicate the direction of signal flow. The red box indicates that we can think of the entire pursuit circuit downstream of MT as the “sensory decoder”. b Eye speed during pursuit initiation as a function of target speed for monkey X, sorted by patch size. Each symbol plots the time-averaged behavior for one trial of a given combination of target speed and size. For each condition, we plot a random sample of 15 trials. Lines plot the best fitting linear model to the 2 deg (green), 6 deg (red), and 20 deg (black) targets. c As in panel b, but for monkey R. Source data are provided as a Source Data file.
