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Hysteresis and the Limits of Homeostasis: from Daisyworld to Phototaxis

Hysteresis and the Limits of Homeostasis: from Daisyworld to Phototaxis
Hysteresis and the Limits of Homeostasis: from Daisyworld to Phototaxis
All biological organisms must be able to regulate certain essential internal variables, e.g. core body temperature in mammals, in order to survive. Almost by definition, those that cannot are dead. Changes that result in a mammal being able to tolerate a wider range of core body temperatures make that organism more robust to external perturbations. In this paper we show that when internal variables are regulated via ‘rein control’ mechanisms, decreasing the range of tolerable values increases the area of observed hysteresis but does not decrease the limits of regulation. We present circumstances where increasing the range of tolerable values actually decreases robustness to external perturbation.
241-246
Dyke, J. G.
e2cc1b09-ae44-4525-88ed-87ee08baad2c
Harvey, I. R.
2e579894-3074-48bc-b8a3-454364b3709c
Dyke, J. G.
e2cc1b09-ae44-4525-88ed-87ee08baad2c
Harvey, I. R.
2e579894-3074-48bc-b8a3-454364b3709c

Dyke, J. G. and Harvey, I. R. (2005) Hysteresis and the Limits of Homeostasis: from Daisyworld to Phototaxis. Proceedings of VIIIth European Conference on Artificial Life, ECAL 2005. pp. 241-246 .

Record type: Conference or Workshop Item (Other)

Abstract

All biological organisms must be able to regulate certain essential internal variables, e.g. core body temperature in mammals, in order to survive. Almost by definition, those that cannot are dead. Changes that result in a mammal being able to tolerate a wider range of core body temperatures make that organism more robust to external perturbations. In this paper we show that when internal variables are regulated via ‘rein control’ mechanisms, decreasing the range of tolerable values increases the area of observed hysteresis but does not decrease the limits of regulation. We present circumstances where increasing the range of tolerable values actually decreases robustness to external perturbation.

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Published date: 2005
Venue - Dates: Proceedings of VIIIth European Conference on Artificial Life, ECAL 2005, 2005-01-01
Organisations: Agents, Interactions & Complexity

Identifiers

Local EPrints ID: 272876
URI: http://eprints.soton.ac.uk/id/eprint/272876
PURE UUID: 33a3791d-06fd-493e-ac79-0a7189d77839
ORCID for J. G. Dyke: ORCID iD orcid.org/0000-0002-6779-1682

Catalogue record

Date deposited: 29 Sep 2011 12:46
Last modified: 26 Nov 2019 01:39

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Contributors

Author: J. G. Dyke ORCID iD
Author: I. R. Harvey

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