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- M L Steyn-Ross, D A Steyn-Ross, J W Sleigh, L C Wilcocks
- Physical review. E, Statistical, nonlinear, and…
- 2001

In a recent paper the authors developed a stochastic model for the response of the cerebral cortex to a general anesthetic agent. The model predicted that there would be an anesthetic-induced phase change at the point of transition into unconsciousness, manifested as a divergence in the electroencephalogram spectral power, and a change in spectral energy… (More)

- D A Steyn-Ross, M L Steyn-Ross, L C Wilcocks, J W Sleigh
- Physical review. E, Statistical, nonlinear, and…
- 2001

In our two recent papers [M.L. Steyn-Ross et al., Phys. Rev. E 60, 7299 (1999); 64, 011917 (2001)] we presented clinical evidence for a general anesthetic-induced phase change in the cerebral cortex, and showed how the significant features of the cortical phase change (biphasic power surge, spectral energy redistribution, "heat capacity" divergence), could… (More)

- Marcus T. Wilson, D. Alistair Steyn-Ross, Jamie W. Sleigh, Moira L. Steyn-Ross, L. C. Wilcocks, I. P. Gillies
- Journal of Computational Neuroscience
- 2006

We use a mean-field macrocolumn model of the cerebral cortex to offer an interpretation of the K-complex of the electroencephalogram to complement those of more detailed neuron-by-neuron models. We interpret the K-complex as a momentary excursion of the cortex from a stable low-firing state to an unstable high-firing state, and hypothesize that the related… (More)

- Moira L Steyn-Ross, D A Steyn-Ross, J W Sleigh, M T Wilson, Lara C Wilcocks
- Physical review. E, Statistical, nonlinear, and…
- 2005

Understanding the structure and purpose of sleep remains one of the grand challenges of neurobiology. Here we use a mean-field linearized theory of the sleeping cortex to derive statistics for synaptic learning and memory erasure. The growth in correlated low-frequency high-amplitude voltage fluctuations during slow-wave sleep (SWS) is characterized by a… (More)

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