by many areas of the cortex. Andersen and Zipser of UCSD developed one of the first neural network models of cortical function, which generated a mathematical basis for testing hypotheses based on laboratory findings. His research established that the posterior parietal cortex (PPC) is involved in forming movement intentions—the early and abstract plans for movement. Previously this part of the brain was thought only to function for spatial awareness and attention. His laboratory discovered the lateral intraparietal area (LIP) in the PPC and established its role in eye movements. He also discovered the parietal reach region, an area involved in forming early reach plans. His lab has also made a number of discoveries related to visual motion perception. He established that the middle temporal area processes the perception of form from motion. He found that the perception of the direction of heading, important for navigation, is computed in the brain using both visual stimuli and eye movement signals. His lab has also determined how eye position and limb position signals are combined for eye-hand coordination. In recent years he has extended his research to translational studies. His group has established that the intention signals from the PPC can be used as control signals for neural prosthetics. Neural prosthetics can assist paralyzed patients by recording their brain signals, interpreting them, and then allowing them to use these processed signals to control external, assistive devices such as robot limbs, computers or wheelchairs simply using by thinking about it. Another new direction the Andersen group is pursuing is the use of electrical stimulation for brain repair. References External links Short biography of Andersen (Caltech) American neuroscientists 1950 births University of California, Davis alumni University of California, San Francisco alumni Johns Hopkins University fellows University of California, San Diego faculty Massachusetts Institute of Technology School of Science faculty California Institute of Technology faculty Living people People from New Kensington, Pennsylvania Fellows of the American Academy of Arts and Sciences Members of the National Academy of Medicine