Browsing by Author "Steyn-Ross, D. Alistair"
Now showing items 1-5 of 46
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An analysis of the transitions between down and up states of the cortical slow oscillation under urethane anaesthesia
(Springer Netherlands, 2010)We study the dynamics of the transition between the low- and high-firing states of the cortical slow oscillation by using intracellular recordings of the membrane potential from cortical neurons of rats. We investigate the ... -
Anesthesia-induced state transitions in neuronal populations
(Humana Press., 2010)It is a simple observation that the function of the central nervous system changes abruptly at certain critical brain concentrations of the anesthetic drug. This can be viewed as analogous to “state transitions” in systems ... -
The Bispectral Index: A measure of depth of sleep?
(LIPPINCOTT WILLIAMS & WILKINS, 1999)How does physiological sleep affect the Bispectral Index (BIS)? We collected electroencephalographic (EEG) data from five subjects during the early part of the night, comparing the changes in the BIS with the conventional ... -
Changes in frequency of seizure-like events in stimulated cortical slices
(IEEE Xplore, 2010)Epilepsy affects nearly 3 million people in the United States alone. Given the fact that many people suffer from seizures that are intractable to pharmacological intervention, research groups are investigating the use of ... -
Characteristics of temporal fluctuations in the hyperpolarized state of the cortical slow oscillation
(American Physical Society, 2008)We present evidence for the hypothesis that transitions between the low- and high-firing states of the cortical slow oscillation correspond to neuronal phase transitions. By analyzing intracellular recordings of the membrane ...
Co-authors for D. Alistair Steyn-Ross
Supervised by D. Alistair Steyn-Ross
Showing up to 5 theses - most recently added to Research Commons first.
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Theoretical and experimental investigation of anaesthetic effects in the brain
(University of Waikato, 2016)The main motivation of this study is to develop a better understanding of anaesthetic drug effects on brain dynamics including the paradoxical enhancement of seizure activity by some anaesthetic drugs. This thesis investigates ... -
NiMH battery forensics: Instrumentation, modelling and prognostics for identifying failure
(University of Waikato, 2016)Battery forensics is a growing research field that is becoming increasingly important with the introduction of hybrid-electric and electric vehicles. The need to correctly diagnose battery condition and predict signs of ... -
Supercapacitor-based linear converter for voltage regulator modules
(University of Waikato, 2016)This thesis investigates a linear converter technique suitable for microprocessor voltage regulator modules (VRMs). The original linear regulator is the patented supercapacitor assisted low-dropout regulator (SCALDO). A ... -
Dynamics and precursor signs for phase transitions in neural systems
(University of Waikato, 2014)This thesis investigates neural state transitions associated with sleep, seizure and anaesthesia. The aim is to address the question: How does a brain traverse the critical threshold between distinct cortical states, both ... -
Investigation of surge propagation in transient voltage surge suppressors and experimental verification
(University of Waikato, 2014)An on-going question in the field of surge protection study is how to predict incipient failure of power electronics in the event of a short time, high voltage, and high energy transient surge propagation. The work presented ...
