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Summary: J Comput Neurosci
DOI 10.1007/s10827-009-0197-8
A biologically plausible model of time-scale
invariant interval timing
Rita Almeida · Anders Ledberg
Received: 27 July 2009 / Revised: 2 October 2009 / Accepted: 12 October 2009
© The Author(s) 2009. This article is published with open access at Springerlink.com
Abstract The temporal durations between events often
exert a strong influence over behavior. The details
of this influence have been extensively characterized
in behavioral experiments in different animal species.
A remarkable feature of the data collected in these
experiments is that they are often time-scale invari-
ant. This means that response measurements obtained
under intervals of different durations coincide when
plotted as functions of relative time. Here we describe
a biologically plausible model of an interval timing
device and show that it is consistent with time-scale
invariant behavior over a substantial range of interval
durations. The model consists of a set of bistable units
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