Quantitative measures of smoothness play an important role in the assessment of
sensorimotor impairment and motor learning. Traditionally, movement smoothness has been …

Motor learning mechanisms are operative during spontaneous stroke recovery and interact
with rehabilitative training. For optimal results, rehabilitation techniques should be geared …

A Dynamic Systems Approach to the Development of Cognition and Action presents a
comprehensive and detailed theory of early human development based on the principles of …

This three-part paper presents an approach to the control of dynamic interaction between a
manipulator and its environment. Part I presented the theoretical reasoning behind …

This paper presents studies of the coordination of voluntary human arm movements. A
mathematical model is formulated which is shown to predict both the qualitative features and …

We investigated how the CNS learns to control movements in different dynamical conditions,
and how this learned behavior is represented. In particular, we considered the task of …

When we make saccadic eye movements or goal-directed arm movements, there is an
infinite number of possible trajectories that the eye or arm could take to reach the target …

The degrees of freedom problem is often posed by asking which of the many possible
degrees of freedom does the nervous system control? By implication, other degrees of …

In this paper, we study trajectory planning and control in voluntary, human arm movements.
When a hand is moved to a target, the central nervous system must select one specific …

Arm movement is well represented in populations of neurons recorded from the motor
cortex,,,,,,. Cortical activity patterns have been used in the new field of brain–machine …