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An open-source closed-loop Virtual Reality system to investigate social interactions and collective behavior in fish

Fig 10

Impact of virtual fish’s swimming depth on real fish’s behavior.

Probability density functions (PDF) of (A) the distance between the real fish and the virtual fish, (B) the swimming speed of the real fish, and (C) the swimming depth of the real fish, for 3 values of the swimming depth of the virtual fish: , 5, and 8 cm/s. The virtual fish (VF) swims at a constant speed cm/s in all cases, and at a distance from the wall , 5.4, and 5 cm for each depth, respectively. (DE) Relative position of the real fish in the reference frame of the virtual fish for the three swimming depths, in (D) the xy-plane and (E) the xz-plane. The virtual fish is located at (0,0). The y-axis points in the direction of the fish, and the x-axis is perpendicular to the fish and points outward from the bowl.

doi: https://doi.org/10.1371/journal.pone.0339909.g010