Predictive feedback control and Fitts' law

Biological cybernetics
Peter GawthropIan Loram

Abstract

Fitts' law is a well established empirical formula, known for encapsulating the "speed-accuracy trade-off". For discrete, manual movements from a starting location to a target, Fitts' law relates movement duration to the distance moved and target size. The widespread empirical success of the formula is suggestive of underlying principles of human movement control. There have been previous attempts to relate Fitts' law to engineering-type control hypotheses and it has been shown that the law is exactly consistent with the closed-loop step-response of a time-delayed, first-order system. Assuming only the operation of closed-loop feedback, either continuous or intermittent, this paper asks whether such feedback should be predictive or not predictive to be consistent with Fitts law. Since Fitts' law is equivalent to a time delay separated from a first-order system, known control theory implies that the controller must be predictive. A predictive controller moves the time-delay outside the feedback loop such that the closed-loop response can be separated into a time delay and rational function whereas a non- predictive controller retains a state delay within feedback loop which is not consistent with Fitts' law. Using sufficient par...Continue Reading

References

Jan 1, 1988·Biological cybernetics·P D NeilsonN J O'Dwyer
Sep 2, 1998·Nature·C M Harris, D M Wolpert
Oct 17, 1998·Journal of Neurophysiology·J A Doeringer, N Hogan
Jun 1, 1997·The Behavioral and Brain Sciences·R Plamondon, A M Alimi
Jun 12, 1999·Biological cybernetics·H van der KooijH Grootenboer
Jul 20, 1999·Motor Control·P D Neilson
Sep 1, 1993·Journal of Motor Behavior·R C MiallJ F Stein
Nov 1, 1996·Neural Networks : the Official Journal of the International Neural Network Society·D M. Wolpert, R C. Miall
Mar 1, 1993·Journal of Motor Behavior·R C MiallJ F Stein
Sep 2, 2005·Journal of Neural Engineering·Paul R Davidson, Daniel M Wolpert
Sep 30, 2006·The Journal of Physiology·Paul M Bays, Daniel M Wolpert
Sep 1, 1998·Trends in Cognitive Sciences·D M WolpertM Kawato

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Citations

Feb 14, 2009·Experimental Brain Research·Lara A BoydB D Wessel
Jul 10, 2009·Biological cybernetics·Peter GawthropMartin Lakie
Aug 15, 2013·Biological cybernetics·Peter GawthropNicholas O'Dwyer
Feb 7, 2014·Biological cybernetics·Peter GawthropMartin Lakie
Dec 6, 2012·Neuroscience·M BertuccoM L Latash
Oct 29, 2009·Biological cybernetics·Dan BeamishZhujun Jing
Nov 8, 2011·Journal of Neural Engineering·John G Milton
Oct 3, 2019·Scientific Reports·Noah J SteinbergLuis F Schettino

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