Figure 6

Figure 6

One-dimensional head-fixed closed-loop OMR. The tail of a head-fixed fish was tracked (332 Hz) while presenting a closed-loop OMR stimulus with varying feedback gain values. (A) Example bouts taken for each gain value for a single fish. Fish were tested on 3 different gain values. Left: gain 0.5. Middle: gain 1.0. Right: gain 1.5. The stimulus velocity (black), tail angle (red), and tail beat frequency (orange) were recorded continuously throughout the experiment. The stimulus velocity changed in proportion to the swim vigor multiplied by the gain factor. Dotted lines indicate baseline value of 0. (B) An example of a single fish showing the tail beat frequency across trials. Left: tail beat frequency sorted by trial number. Right: same data as left with tail beat frequency sorted by gain. (C) Bout kinematics plotted as a function of gain factor.