Figure 6.

Dissociation of Pattern and Location Preference

(A) Top: schematic of the maze during the conditioning session in experiments with pattern swap. Bottom: hierarchical clustering reveals two groups: 4 center-preferring and 28 arm-avoiding fish.

(B) Arm occupancies during the test session in experiments with pattern swap. Occupancy groups correspond to the groups identified in (A).

(C) Example trajectories of individual fish before and after the pattern swap. Top: a fish prefers the center. Middle: a fish prefers one arm and switches the arm after the patterns are swapped. Bottom: another fish also prefers one arm but stays in the same arm after the pattern swap.

(D) Top: schematic of the maze during the conditioning session in experiments with pattern rotation. Bottom: hierarchical clustering reveals three groups: 1 center-preferring, 5 non-avoiding, and 25 avoiding fish.

(E) Arm occupancies during the test session in experiments with pattern rotation. The conditioned pattern moves into the preferred safe arm, thus creating a conflict between avoidance and preference cues. The pattern from the preferred arm moves into the non-preferred arm; the pattern from the non-preferred arm moves into the previously conditioned arm. Occupancy groups correspond to the groups identified in (D).

(F) Example trajectories of individual fish before and after the pattern rotation. Top: a fish prefers the center. Upper middle: a fish moves its preference following the preferred pattern and starts avoiding its previously preferred arm. Lower middle: a fish ignores the rotation and stays in its preferred arm despite the presence of the conditioned pattern. Bottom: another fish also ignores the rotation and stays in its preferred arm.

See also Figure S4.