(A) Behavioral testing arena, with a camera to track the position of the mouse and a monitor on top to present visual stimuli. (B) Snapshot of mouse with implant in arena. (C) Sample tracking of 2 min of open field behavior in an implanted mouse. Color of the line indicates the velocity of the mouse. (D) Open field behavior of implanted vs. naive mice. Random 30–180 s exerpts of behavior (N = 8 videos per group, two videos from each mouse) in the open field were used to calculate a percent time moving (>5 cm/s), max velocity, and max acceleration. (E) Visual-looming evoked behavior of implanted vs. naive mice (N = 10 trials, two videos per mouse). A dark dot of linearly increasing diameter (40 cm/s) was presented over the mouse’s head to evoke an escape response. The mean velocity, max velocity, and max acceleration during these responses is presented here. In all panels, orange line indicates the group mean, blue line indicates the median. p-Values (as computed by a two-sided Wilcoxon Rank Sum test) as well as effect sizes (computed by a Cohen’s d) are reported on each panel. Outliers (defined as 1.5*IQR) are marked as light gray points.