A theoretical model of phase transitions in the human brain

  title={A theoretical model of phase transitions in the human brain},
  author={Viktor Jirsa and Rudolf Friedrich and Hermann Haken and J. A. Scott Kelso},
  journal={Biological Cybernetics},
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… 
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Multistability and metastability: understanding dynamic coordination in the brain
  • J. Kelso
  • Biology
    Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2012
It is suggested how multistability—when combined with essential aspects of coordination dynamics such as instability, transitions and (especially) metastability—provides a platform for understanding coupling and the creative dynamics of complex goal-directed systems, including the brain and the brain–behaviour relation.
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A more elaborate system of coupled oscillators is outlined, comprising two coupled limit cycle oscillators at the neural level, each of which is coupled to a linearly damped oscillator, representing the end-effectors.
The Dynamical and Structural Basis of Brain Activity
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A theoretical model, using concepts central to the interdisciplinary field of synergetics and nonlinear oscillator theory, is developed, which reproduces the dramatic change in coordinative pattern observed between the hands.
Pattern formation and switching between self-organized states are often associated with instabilities in open, nonequilibrium systems. We describe an experiment which shows that systematically
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  • J. Kelso
  • Physics
    The American journal of physiology
  • 1984
Conditions that give rise to phase shifts among the limbs when an animal changes gait are poorly understood and Coordinated shifts appear to arise because of continuous scaling influences that render the existing mode unstable.
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    IEEE Circuits and Devices Magazine
  • 1988
Synergetics is concerned with the cooperation of individual parts of a system that produces macroscopic spatial, temporal, or functional structures. The following article deals with an aspect of