Skip to main content
. 2021 Oct 26;10:e70838. doi: 10.7554/eLife.70838

Figure 2. Mice use a focal region of their visual field to track prey.

(A) Mouse (black) and cricket (orange) paths during a single pursuit sequence (left), and for all pursuit sequences in one session for one animal (right). Pursuit start denoted as filled circles and cricket capture as X. (B) Mouse (red and blue) and cricket (orange) paths during an individual pursuit sequence (left) and all pursuit sequences in one session from one animal (right), showing detect (red) and track (blue) epochs of the mouse path. Paths after a cricket escape shown dashed. Pursuit sequence start shown as filled circles, cricket landing point after a jump shown as a filled triangle. (C) Euclidean distance between mouse and cricket during detect (red) and track (blue) epochs (n=65 trajectories, n=3 mice). (D) Mean and SD bearing to cricket (angle between mouse’s forward direction and cricket location) during detect (red), and track (blue) epochs from all animals (detect: 57 epochs; track: 65 epochs, n=3 animals, bin size = 5°). (E) Trajectory of the projected cricket position in the left and right corneal views, during a single pursuit sequence. Color scheme as for D. The inner dashed circle is 45° from the optical axes. Dorsal (D), ventral (V), nasal (N), and temporal (T) directions indicated. (F) Average probability density maps for detect epochs (4628 frames from three animals). Orientation as in E. (G) Average probability density maps for track epochs (13641 frames from three animals). Orientation as in E. (H) Isodensity contours calculated from the average probability density maps for track epochs. (note that 50% means that this region contains 50% of the total density, and likewise for the other contours). Orientation as in E.

Figure 2—source data 1. Related to Figure 2A,B,C,D,H.
Figure 2—source data 2. Related to Figure 2E.
Figure 2—source data 3. Related to Figure 2F.
Figure 2—source data 4. Related to Figure 2G.

Figure 2.

Figure 2—figure supplement 1. Individual corneal prey image heatmaps.

Figure 2—figure supplement 1.

(A) Probability density maps for detect (upper row) and track (lower row) epochs for each of the three animals individually. Data from 4 detect and 5 track sequences, 27 detect and 28 track sequences and 17 detect and 19 track sequences for mouse 1, 2, and 3, respectively. (B) Isodensity contours calculated from the average probability density maps for all detect epochs from all three animals. (C) Isodensity contours for all track epochs from all three animals. (D) 50% isodensity contour (defined as in Figure 2H) during track epochs for each of the three mice (m1-m3) individually.