Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems
Abstract
How do humans and other animals accomplish coordinated movements? How are novel combinations of limb joints rapidly assembled into new behavioral units that move together in in-phase or anti-phase movement patterns during complex movement tasks? A neural model simulates data from human bimanual coordination tasks. As in the data, anti-phase oscillations at low frequencies switch to in-phase oscillations at high frequencies, in-phase oscillations occur both at low and high frequencies, phase fluctuations occur at the anti-phase in-phase transition, a "seagull effect" of larger errors occurs at intermediate phases, and oscillations slip toward in-phase and anti-phase when driven at intermediate phases.Air Force Office of Scientific Research (90-0128, F49620-92-J-0225, F49620-92-J-0499, 90-0083); Office of Naval Research (N00014-92-J-1309, N00014-92-J-1309); National Science Foundation (IIU-90-24877); Army Research Office (DAAL03-88-K-0088
