Figure 3.

Dynamic model fit of experimental brain motion data. (a) Schematic of brain as a 1DOF dynamic model, where skull motion in the MRI experiments was used as input to the model. (b) Histogram of all errors for different model constraints: unconstrained kinematic (3DOF), constrained kinematics (1DOF) and unconstrained dynamic (1DOF) models. (c–e) Time traces of constrained dynamic fit to unconstrained kinematics for sagittal rotation, PA translation and IS translation, all relative to the skull.