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A theoretical model of phase transitions in the human brain

✍ Scribed by V. K. Jirsa; R. Friedrich; H. Haken; J. A. S. Kelso

Publisher
Springer-Verlag
Year
1994
Tongue
English
Weight
807 KB
Volume
71
Category
Article
ISSN
0340-1200

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✦ Synopsis

An experiment using a multisensor SQUID (superconducting quantum interference device) array was performed by Kelso and colleagues (1992) which combined information from three different sources: perception, motor response, and brain signals. When an acoustic stimulus frequency is changed systematically, a spontaneous transition in coordination occurs at a critical frequency in both motor behavior and brain signals.

Qualitatively analogous transitions are known for physical and biological systems such as changes in the coordination of human hand movements (Kelso 1981(Kelso , 1984)). In this paper we develop a theoretical model based on methods from the interdisciplinary field of synergetics (Haken 1983(Haken , 1987) ) and nonlinear oscillator theory that reproduces the main experimental features very well and suggests a formulation of a fundamental biophysical coupling.

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