Timing without a timer

Article Abstract:

A critique of Staddon and Higa's research on the timing interval of animals is presented. Both are dissatisfied with the use of timers and pacemakers but propose a new theory with decreasing rates of habituation. However, the habituation units of their multiple-time-scale (MTS) model are mere products of independent experimental analysis similar to those of the scalar expectancy theory. Computer simulations have also shown that timing may also result from the reinforcement of neural circuits without using any timers.

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Multiple time scales is well named

Article Abstract:

A critique on Haddon and Higa's research on timing intervals in animals is presented. Both claim that the scalar expectancy theory (SET) does not agree with Weber's law. However, they have misinterpreted how the Poisson pacemaker should be used, since it was found that even small values of multiplicative variance would make the Poisson variability negligible. SET is not wholly dependent on the Poisson pacemaker but with a mechanism that combines activity over time with multiplicative variance.

Evaluation, Time-series analysis, Time series analysis

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Evaluation of quantitative theories of timing

Article Abstract:

Staddon and Higa claim that scalar expectancy theory (SET) is the most popular theory of interval timing in animals. Its popularity may have been the result of its clearness, completeness, preciseness and modularity. They erred in assuming that the development of SET happened by assuming a Poisson pacemaker that was found to be incompatible with Weber's law. SET developed when it was found out that experimental data agreed with Weber's law for timing.

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