Candidates for Synergies: Linear Discriminants versus Principal Components

Figure 7

Top: the lowest reconstruction error for both methods in natural grasping movement reconstruction was found in grasping task number 47. Its reconstruction is shown using PCA and ULDA. Bottom: the highest reconstruction error for both methods was found in grasping task number 75. Its reconstruction is shown using PCA and ULDA. T: thumb; I: index finger; M: middle finger; R: ring finger; P: pinky finger; MCP: metacarpophalangeal joint; IP: interphalangeal joint; PIP: proximal IP joint.