Functional modelling of the human timing mechanism

Behaviour occurs in time, and precise timing in the range of seconds and fractions of seconds is for most living organisms necessary for successful interaction with the environment. Our ability to time discrete actions and to predict events on the basis of prior events indicates the existence of an internal timing mechanism. The nature of this mechanism provides essential constraints on models of the functional organisation of the brain.The present work indicates that there are discontinuities in the function of time close to 1 s and 1.4 s, both in the amount of drift in a series of produced intervals (Study I) and in the detectability of drift in a series of sounds (Study II). The similarities across different tasks further suggest that action and perceptual judgements are governed by the same (kind of) mechanism…


Drift in production (Study I)
Sensitivity for drift in auditory sequences (Study II)
Effects of subdividing intervals
Modality and stimulus properties
Serial dependency
Drift, stationarity, and autocorrelation estimates
Fractal time series and the Hurst exponent
Serial dependency in timing as suggested by previous research
Fractal dimension of ISIP (Study III)
A functional model
Discussion and questions

Author: Madison, Guy

Source: Uppsala University Library

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