Figure 1. Examples of trial-over-trial changes in neural and behavioral responses during pursuit learning for a representative neuron in the FEFSEM. A, The direction tuning of an example FEFSEM neuron. Target motion began at the start of each histogram. sp/s, Spikes per second. B, Trial configurations for the baseline block and the learning block, shown separately for the FEFSEM and floccular complex learning experiments. In this example experiment, the learning direction is upward, and the probe (black arrow) and control (green arrow) directions are, respectively, rightward and leftward. Cb, Cerebellum. C, Black and blue traces show eye velocity traces from the last 10 probe trials in the baseline block and the first 30 learning trials from the learning block. D, Black and red rasters show spike trains from the last 10 probe trials in the baseline block and the first 30 learning trials from the learning block. The order of trial occurrence runs from top to bottom. E, F, Blue and red traces show the smoothed eye velocity traces (E) and firing rate estimates (F) from the first, 15th, and 30th learning trials. The black traces plot the smoothed neural and behavioral data averaged across the last 10 probe trials from the baseline block. The diagonal arrows in E and F indicate the learned responses. The light shading in C and D and the vertical dashed lines in E and F indicate the analysis intervals.