Major hypotheses about the control of reaching movement argue that the generation of the motor command involves explicit trajectory planning in the CNS. This report points out that these hypotheses have difficulties in explaining some phenomena observed in behavioral experiments and that we need a novel hypothesis which does not require trajectory planning. As an attempt to build such a hypothesis, we adopt a muscle model which faithfully simulates physical properties of muscles, and examine by computer simulations whether or not it can reproduce the phenomena which have been refer to as the evidence for the existence of desired trajectory.
展开▼
