Document Type

Conference Proceeding


WM Keck Science

Publication Date



Experiments were performed in normal and Parkinsonian subjects who were asked to maintain a constant finger position using time-delayed visual feedback. The finger position showed complex dynamics, with characteristic differences between normal and Parkinosonian subjects. Here we discuss some of the theoretical issues that must be resolved in order to understand the mechanisms that underlie the generation of these complex signals.


Previously linked to as:,227

Source: Published conference presentation, posted with permission.

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