Fig. 4: Object-specific kinematics in PC subspaces.

a Projection of the kinematics onto PCs 21 through 23 for five grasps each of tape and banana. b Projection of the kinematics onto PCs 21 through 23 for five repeated signs each of “two” and “seven” in ASL. c Projection of the kinematics onto PCs 1 through 3 for the conditions shown in a. d Projection of the kinematics onto PCs 1 through 3 for the conditions shown in b. In all panels, separate objects and signs are indicated by color, and different trials are indicated by traces of different lightness.