Münster 1997 – scientific programme

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DY: Dynamik und Statistische Physik

DY 19: Poster II

DY 19.19: Poster

Thursday, March 20, 1997, 09:30–12:30, Z

Delay induced transitions in visually guided movements — •Giovanna Guasti — Institut für Theoretische Physik und Astrophysik, Universität Potsdam, Postfach 601553, D-14415 Potsdam

We investigate the phase dynamics of sinusoidal forearm tracking with delayed visual feedback. To this end we introduced different data analysis tools which enabled us to find several delay induced transitions between qualitatively different regimes. Our results show that the investigation of delay induced transitions of the phase dynamics in tracking movements provides us with new insights into the underlying neuronal signal processing. In particular we experimentally verified predictions of a recently presented mathematical model. By applying our analysis methods we hope to improve the diagnostic tools.