Figure 4.
Markerless 3D motion tracking system (MTS) and experimental design of the behavioral test
(A) Illustration of the analytical data flow of MTS. The positions of animal body parts, namely Head, Neck, Body, and Hip, were estimated through a statistical skeleton model that simulated the full three-dimensional point cloud of the marmoset body surface extracted from four depth cameras.
(B) Schematics of a marmoset body skeleton model. Arrows represent the part sizes, attraction force between Hip and floor, and the range of movement of joints.
(C) Body rotation speed (θrot) was the angular speed of the horizontal Body–Head axis.
(D) Head movement was divided into horizontal (Vhor) and vertical vectors (Vver).
(E) Experimental schedule. Marmo1 and 2 were examined under conditions (vehicle treatment, deschloroclozapine (DCZ) treatment, and 24 hr after DCZ treatment) using a repeated-measures design with a total of four repetitions of either per os [PO] or intraperitoneal [IP] administration. Marmo4 was examined under vehicle and DCZ-PO administrations. The numbers represent the days after vector injection.