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Multiple-interval timing in rats: Performance on two-valued\ud mixed fixed-interval schedules

By Simon Whitaker, Furgus Lowe and John Wearden


Three experiments studied timing in rats on two-valued mixed-FI schedules,\ud with equally probable components, FI S and FI L. When the L/S ratio was\ud greater than 4, two distinct response peaks appeared close to FI S and L, and\ud data could be well-fitted by the sum of 2 Gaussian curves. When the L/S ratio\ud was less than 4, only one response peak was visible, but nonlinear regression\ud usually identified separate sources of behavioral control, by FI S and FI L,\ud although control by FI L dominated. The data were used to test ideas derived\ud from Scalar Expectancy Theory (SET), the Behavioral Theory of Timing\ud (BeT), and Learning to Time (LeT)

Topics: BF
Publisher: American Psychological Association
Year: 2003
OAI identifier: oai:eprints.hud.ac.uk:4291

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