Dynamic Representations Provide the Gradual Specification of Movement Parameters
In an attempt to give a theoretical foundation of the abstract notion of “motor programming”, neural representations of movement parameters are introduced on which activity dynamics is subject to sensory and preinformation as well as to intentional factors. A motor program is defined as a sufficiently developed cluster of activity, the location of which codes for parameters of the upcoming movement. Simulation results closely reproduce experimental findings.They show that motor programs can be prestructured by the stimulus set used during sessions and that the motor program can adapt gradually over time to a visual specification. Testable predictions are derived from the theory. As a concrete example, the programming of visually guided saccades is considered.
KeywordsMovement Parameter Model Architecture Motor Program Neural Representation Movement Initiation
Unable to display preview. Download preview PDF.
- M Favilla, J Gordon, MF Ghilardi, C Ghez. Soc. Neurosci. Abst. 16: 1089, 1990Google Scholar
- TR Stanford, LH Carney, DL Sparks. Soc. Neurosci. Abst. 16: 901, 1990Google Scholar
- K Kopecz. Saccadic reaction times in gap overlap paradigms. Vision Research,in press, 1995Google Scholar
- K Kopecz. Dynamic neural representations provide a theoretical framework to understand saccadic motor programming. Submitted, 1995Google Scholar
- G Schöner and W Erlhagen. Dynamic neural field theory of motor programming. Submitted, 1995Google Scholar