Fifty years later: a neurodynamic explanation of Fitts' law
Open Access
- 18 April 2006
- journal article
- Published by The Royal Society in Journal of The Royal Society Interface
- Vol. 3 (10), 649-654
- https://doi.org/10.1098/rsif.2006.0123
Abstract
An intrinsic property of human motor behaviour is a trade-off between speed and accuracy. This is classically described by Fitts' law, a model derived by assuming the human body has a limited capacity to transmit information in organizing motor behaviour. Here, we propose an alternative foundation, based on the neurodynamics of the motor circuit, wherein Fitts' law is an approximation to a more general relationship. In this formulation, widely observed inconsistencies with experimental data are a consequence of psychomotor delay. The methodology developed additionally provides a method to estimate the delay within the motor circuit from the speed-accuracy trade-off alone.Keywords
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