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Fig. 2 | Journal of NeuroEngineering and Rehabilitation

Fig. 2

From: Reach-to-grasp kinematics and kinetics with and without visual feedback in early-stage Alzheimer’s disease

Fig. 2

The reach-to-grasp kinematic performances of representative AD and CN subjects with different visual conditions. Distributions of the contact points by the thumb and index finger from a representative AD (a) and an age- and gender-matched CN (b) in NVF. The ellipsoids are fitting spheres including 95% of contact points. The volumes of the ellipsoids indicate the precision of grasping with respect to the target. Trajectories in velocity-position phase diagram during reaching, grasping and returning from a representative AD and a CN subjects with VF (c) and NVF (d). The minimum-jerk and actual trajectories from a representative AD during reaching in VF (e) and NVF (f) conditions

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