Editing Feed forward (control) (section)

===Physiological feed-forward system===
{{main|Neural top–down control of physiology}}
In [[physiology]], feed-forward control is exemplified by the normal anticipatory regulation of heartbeat in advance of actual physical exertion by the central [[autonomic nervous system|autonomic network]].  Feed-forward control can be likened to learned anticipatory responses to known cues ([[predictive coding]]). Feedback regulation of the heartbeat provides further adaptiveness to the running eventualities of physical exertion. Feedforward systems are also found in biological control of other variables by many regions of animals [[brain]]s.{{citation needed|date=August 2022}}

Even in the case of biological feedforward systems, such as in the [[human brain]], knowledge or a [[mental model]] of the plant (body) can be considered to be mathematical as the model is characterized by limits, rhythms, mechanics and patterns.<ref name=onote37>MacKay, D. M. (1966): "Cerebral organization and the conscious control of action". In: J. C. Eccles (Ed.), Brain and conscious experience, Springer, pp. 422–440</ref><ref name=onote38>Greene, P. H. (1969): "Seeking mathematical models of skilled actions". In: H. C. Muffley/D. Bootzin (Eds.), Biomechanics, Plenum, pp. 149–180</ref>

A pure feed-forward system is different from a [[homeostatic]] control system, which has the function of keeping the body's internal environment 'steady' or in a 'prolonged steady state of readiness.' A homeostatic control system relies mainly on feedback (especially negative), in addition to the feedforward elements of the system.