Self-Organized Short-Term Memories

Abstract

We report short-term memory formation in a nonlinear dynamical system with many degrees of freedom. The system ``remembers'' a sequence of impulses for a transient period, but it coarsens and eventually ``forgets'' nearly all of them. The memory duration increases as the number of degrees of freedom in the system increases. We demonstrate the existence of these transient memories in a laboratory experiment.

arXiv commentSignificantly revised version with additional authors, accepted by PRL. 13 pages, 4 figures. Postscript version with higher resolution figures available at ftp://haber.uchicago.edu/pub/memories.ps

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