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1. Analysis and Real-Time Classification of Motor-Related EEG and MEG Patterns

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry D.I., Series Editor, Braha, Dan, Series Editor, Érdi, Péter, Series Editor, Friston, Karl J, Series Editor, Haken, Hermann, Series Editor, Jirsa, Viktor, Series Editor, Kacprzyk, Janusz, Series Editor, Kaneko, Kunihiko, Series Editor, Kelso, Scott, Series Editor, Kirkilionis, Markus, Series Editor, Kurths, Jürgen, Series Editor, Menezes, Ronaldo, Series Editor, Nowak, Andrzej, Series Editor, Qudrat-Ullah, Hassan, Series Editor, Reichl, Linda, Series Editor, Schuster, Peter, Editor-in-Chief, Schweitzer, Frank, Series Editor, Sornette, Didier, Series Editor, Thurner, Stefan, Series Editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2021
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2. Wavelet-Based Diagnostics of Paroxysmal Activity in EEG and Brain-Computer Interfaces for Epilepsy Control

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry D.I., Series Editor, Braha, Dan, Series Editor, Érdi, Péter, Series Editor, Friston, Karl J, Series Editor, Haken, Hermann, Series Editor, Jirsa, Viktor, Series Editor, Kacprzyk, Janusz, Series Editor, Kaneko, Kunihiko, Series Editor, Kelso, Scott, Series Editor, Kirkilionis, Markus, Series Editor, Kurths, Jürgen, Series Editor, Menezes, Ronaldo, Series Editor, Nowak, Andrzej, Series Editor, Qudrat-Ullah, Hassan, Series Editor, Reichl, Linda, Series Editor, Schuster, Peter, Editor-in-Chief, Schweitzer, Frank, Series Editor, Sornette, Didier, Series Editor, Thurner, Stefan, Series Editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2021
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3. Analysis of Visual Sensory Processing in the Brain and Brain-Computer Interfaces for Human Attention Control

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry D.I., Series Editor, Braha, Dan, Series Editor, Érdi, Péter, Series Editor, Friston, Karl J, Series Editor, Haken, Hermann, Series Editor, Jirsa, Viktor, Series Editor, Kacprzyk, Janusz, Series Editor, Kaneko, Kunihiko, Series Editor, Kelso, Scott, Series Editor, Kirkilionis, Markus, Series Editor, Kurths, Jürgen, Series Editor, Menezes, Ronaldo, Series Editor, Nowak, Andrzej, Series Editor, Qudrat-Ullah, Hassan, Series Editor, Reichl, Linda, Series Editor, Schuster, Peter, Editor-in-Chief, Schweitzer, Frank, Series Editor, Sornette, Didier, Series Editor, Thurner, Stefan, Series Editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2021
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4. Wavelet Approach to the Study of Rhythmic Neuronal Activity

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry D.I., Series Editor, Braha, Dan, Series Editor, Érdi, Péter, Series Editor, Friston, Karl J, Series Editor, Haken, Hermann, Series Editor, Jirsa, Viktor, Series Editor, Kacprzyk, Janusz, Series Editor, Kaneko, Kunihiko, Series Editor, Kelso, Scott, Series Editor, Kirkilionis, Markus, Series Editor, Kurths, Jürgen, Series Editor, Menezes, Ronaldo, Series Editor, Nowak, Andrzej, Series Editor, Qudrat-Ullah, Hassan, Series Editor, Reichl, Linda, Series Editor, Schuster, Peter, Editor-in-Chief, Schweitzer, Frank, Series Editor, Sornette, Didier, Series Editor, Thurner, Stefan, Series Editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2021
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5. Classification of Neuronal Spikes from Extracellular Recordings

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry D.I., Series Editor, Braha, Dan, Series Editor, Érdi, Péter, Series Editor, Friston, Karl J, Series Editor, Haken, Hermann, Series Editor, Jirsa, Viktor, Series Editor, Kacprzyk, Janusz, Series Editor, Kaneko, Kunihiko, Series Editor, Kelso, Scott, Series Editor, Kirkilionis, Markus, Series Editor, Kurths, Jürgen, Series Editor, Menezes, Ronaldo, Series Editor, Nowak, Andrzej, Series Editor, Qudrat-Ullah, Hassan, Series Editor, Reichl, Linda, Series Editor, Schuster, Peter, Editor-in-Chief, Schweitzer, Frank, Series Editor, Sornette, Didier, Series Editor, Thurner, Stefan, Series Editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2021
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6. Analysis of Gamma-Waves in Multielectrode LFP Recordings

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry D.I., Series Editor, Braha, Dan, Series Editor, Érdi, Péter, Series Editor, Friston, Karl J, Series Editor, Haken, Hermann, Series Editor, Jirsa, Viktor, Series Editor, Kacprzyk, Janusz, Series Editor, Kaneko, Kunihiko, Series Editor, Kelso, Scott, Series Editor, Kirkilionis, Markus, Series Editor, Kurths, Jürgen, Series Editor, Menezes, Ronaldo, Series Editor, Nowak, Andrzej, Series Editor, Qudrat-Ullah, Hassan, Series Editor, Reichl, Linda, Series Editor, Schuster, Peter, Editor-in-Chief, Schweitzer, Frank, Series Editor, Sornette, Didier, Series Editor, Thurner, Stefan, Series Editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2021
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7. Mathematical Methods of Signal Processing in Neuroscience

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry D.I., Series Editor, Braha, Dan, Series Editor, Érdi, Péter, Series Editor, Friston, Karl J, Series Editor, Haken, Hermann, Series Editor, Jirsa, Viktor, Series Editor, Kacprzyk, Janusz, Series Editor, Kaneko, Kunihiko, Series Editor, Kelso, Scott, Series Editor, Kirkilionis, Markus, Series Editor, Kurths, Jürgen, Series Editor, Menezes, Ronaldo, Series Editor, Nowak, Andrzej, Series Editor, Qudrat-Ullah, Hassan, Series Editor, Reichl, Linda, Series Editor, Schuster, Peter, Editor-in-Chief, Schweitzer, Frank, Series Editor, Sornette, Didier, Series Editor, Thurner, Stefan, Series Editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2021
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8. Analysis of Single Neuron Recordings

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry D.I., Series Editor, Braha, Dan, Series Editor, Érdi, Péter, Series Editor, Friston, Karl J, Series Editor, Haken, Hermann, Series Editor, Jirsa, Viktor, Series Editor, Kacprzyk, Janusz, Series Editor, Kaneko, Kunihiko, Series Editor, Kelso, Scott, Series Editor, Kirkilionis, Markus, Series Editor, Kurths, Jürgen, Series Editor, Menezes, Ronaldo, Series Editor, Nowak, Andrzej, Series Editor, Qudrat-Ullah, Hassan, Series Editor, Reichl, Linda, Series Editor, Schuster, Peter, Editor-in-Chief, Schweitzer, Frank, Series Editor, Sornette, Didier, Series Editor, Thurner, Stefan, Series Editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2021
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9. Brief Tour of Wavelet Theory

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry D.I., Series Editor, Braha, Dan, Series Editor, Érdi, Péter, Series Editor, Friston, Karl J, Series Editor, Haken, Hermann, Series Editor, Jirsa, Viktor, Series Editor, Kacprzyk, Janusz, Series Editor, Kaneko, Kunihiko, Series Editor, Kelso, Scott, Series Editor, Kirkilionis, Markus, Series Editor, Kurths, Jürgen, Series Editor, Menezes, Ronaldo, Series Editor, Nowak, Andrzej, Series Editor, Qudrat-Ullah, Hassan, Series Editor, Reichl, Linda, Series Editor, Schuster, Peter, Editor-in-Chief, Schweitzer, Frank, Series Editor, Sornette, Didier, Series Editor, Thurner, Stefan, Series Editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2021
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11. Conclusion

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry D.I., Series Editor, Braha, Dan, Series Editor, Érdi, Péter, Series Editor, Friston, Karl J, Series Editor, Haken, Hermann, Series Editor, Jirsa, Viktor, Series Editor, Kacprzyk, Janusz, Series Editor, Kaneko, Kunihiko, Series Editor, Kelso, Scott, Series Editor, Kirkilionis, Markus, Series Editor, Kurths, Jürgen, Series Editor, Menezes, Ronaldo, Series Editor, Nowak, Andrzej, Series Editor, Qudrat-Ullah, Hassan, Series Editor, Reichl, Linda, Series Editor, Schuster, Peter, Editor-in-Chief, Schweitzer, Frank, Series Editor, Sornette, Didier, Series Editor, Thurner, Stefan, Series Editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Maksimenko, Vladimir A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2021
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12. Conclusion

Author

Hramov, Alexander E., primary, Koronovskii, Alexey A., additional, Makarov, Valeri A., additional, Maksimenko, Vladimir A., additional, Pavlov, Alexey N., additional, and Sitnikova, Evgenia, additional

Published
2021
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14. Wavelets in Neuroscience

Author

Hramov, Alexander E., primary, Koronovskii, Alexey A., additional, Makarov, Valeri A., additional, Maksimenko, Vladimir A., additional, Pavlov, Alexey N., additional, and Sitnikova, Evgenia, additional

Published
2021
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21. Analysis of Single Neuron Recordings

Author

Hramov, Alexander E., primary, Koronovskii, Alexey A., additional, Makarov, Valeri A., additional, Maksimenko, Vladimir A., additional, Pavlov, Alexey N., additional, and Sitnikova, Evgenia, additional

Published
2021
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22. Brief Tour of Wavelet Theory

Author

Hramov, Alexander E., primary, Koronovskii, Alexey A., additional, Makarov, Valeri A., additional, Maksimenko, Vladimir A., additional, Pavlov, Alexey N., additional, and Sitnikova, Evgenia, additional

Published
2021
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23. Time–Frequency Analysis of EEG: From Theory to Practice

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry, Series editor, Braha, Dan, Series editor, Èrdi, Péter, Series editor, Friston, Karl, Series editor, Haken, Hermann, Series editor, Jirsa, Viktor, Series editor, Kacprzyk, Janusz, Series editor, Kaneko, Kunihiko, Series editor, Kelso, Scott, Series editor, Kirkilionis, Markus, Series editor, Kurths, Jürgen, Series editor, Nowak, Andrzej, Series editor, Reichl, Linda, Series editor, Schuster, Peter, Series editor, Schweitzer, Frank, Series editor, Sornette, Didier, Series editor, Thurner, Stefan, Series editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2015
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24. Automatic Diagnostics and Processing of EEG

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry, Series editor, Braha, Dan, Series editor, Èrdi, Péter, Series editor, Friston, Karl, Series editor, Haken, Hermann, Series editor, Jirsa, Viktor, Series editor, Kacprzyk, Janusz, Series editor, Kaneko, Kunihiko, Series editor, Kelso, Scott, Series editor, Kirkilionis, Markus, Series editor, Kurths, Jürgen, Series editor, Nowak, Andrzej, Series editor, Reichl, Linda, Series editor, Schuster, Peter, Series editor, Schweitzer, Frank, Series editor, Sornette, Didier, Series editor, Thurner, Stefan, Series editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2015
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25. Wavelet Approach to the Study of Rhythmic Neuronal Activity

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry, Series editor, Braha, Dan, Series editor, Èrdi, Péter, Series editor, Friston, Karl, Series editor, Haken, Hermann, Series editor, Jirsa, Viktor, Series editor, Kacprzyk, Janusz, Series editor, Kaneko, Kunihiko, Series editor, Kelso, Scott, Series editor, Kirkilionis, Markus, Series editor, Kurths, Jürgen, Series editor, Nowak, Andrzej, Series editor, Reichl, Linda, Series editor, Schuster, Peter, Series editor, Schweitzer, Frank, Series editor, Sornette, Didier, Series editor, Thurner, Stefan, Series editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2015
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26. Classification of Neuronal Spikes from Extracellular Recordings

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry, Series editor, Braha, Dan, Series editor, Èrdi, Péter, Series editor, Friston, Karl, Series editor, Haken, Hermann, Series editor, Jirsa, Viktor, Series editor, Kacprzyk, Janusz, Series editor, Kaneko, Kunihiko, Series editor, Kelso, Scott, Series editor, Kirkilionis, Markus, Series editor, Kurths, Jürgen, Series editor, Nowak, Andrzej, Series editor, Reichl, Linda, Series editor, Schuster, Peter, Series editor, Schweitzer, Frank, Series editor, Sornette, Didier, Series editor, Thurner, Stefan, Series editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2015
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27. Brief Tour of Wavelet Theory

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry, Series editor, Braha, Dan, Series editor, Èrdi, Péter, Series editor, Friston, Karl, Series editor, Haken, Hermann, Series editor, Jirsa, Viktor, Series editor, Kacprzyk, Janusz, Series editor, Kaneko, Kunihiko, Series editor, Kelso, Scott, Series editor, Kirkilionis, Markus, Series editor, Kurths, Jürgen, Series editor, Nowak, Andrzej, Series editor, Reichl, Linda, Series editor, Schuster, Peter, Series editor, Schweitzer, Frank, Series editor, Sornette, Didier, Series editor, Thurner, Stefan, Series editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2015
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28. Mathematical Methods of Signal Processing in Neuroscience

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry, Series editor, Braha, Dan, Series editor, Èrdi, Péter, Series editor, Friston, Karl, Series editor, Haken, Hermann, Series editor, Jirsa, Viktor, Series editor, Kacprzyk, Janusz, Series editor, Kaneko, Kunihiko, Series editor, Kelso, Scott, Series editor, Kirkilionis, Markus, Series editor, Kurths, Jürgen, Series editor, Nowak, Andrzej, Series editor, Reichl, Linda, Series editor, Schuster, Peter, Series editor, Schweitzer, Frank, Series editor, Sornette, Didier, Series editor, Thurner, Stefan, Series editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2015
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29. Analysis of Single Neuron Recordings

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry, Series editor, Braha, Dan, Series editor, Èrdi, Péter, Series editor, Friston, Karl, Series editor, Haken, Hermann, Series editor, Jirsa, Viktor, Series editor, Kacprzyk, Janusz, Series editor, Kaneko, Kunihiko, Series editor, Kelso, Scott, Series editor, Kirkilionis, Markus, Series editor, Kurths, Jürgen, Series editor, Nowak, Andrzej, Series editor, Reichl, Linda, Series editor, Schuster, Peter, Series editor, Schweitzer, Frank, Series editor, Sornette, Didier, Series editor, Thurner, Stefan, Series editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2015
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31. Application of wavelet-based tools to study the dynamics of biological processes

Author

Makarov, Valeri A., Pavlov, Alexey N., Mosekilde, Erik, Sosnovtseva, Olga V., Makarov, Valeri A., Pavlov, Alexey N., Mosekilde, Erik, and Sosnovtseva, Olga V.

Abstract

The article makes use of three different examples (sensory information processing in the rat trigeminal complex, intracellular interaction in snail neurons and multimodal dynamics in nephron autoregulation) to demonstrate how modern approaches to time-series analysis based on the wavelet-transform can provide information about the underlying complex biological processes., Network of Excellence (European Union), Russian Ministry of Education and Sciences, Spanish Ministry of Education and Sciences (Ramón y Cajal/UCM), Depto. de Análisis Matemático y Matemática Aplicada, Fac. de Ciencias Matemáticas, TRUE, pub

Published
2023

35. Conclusion

Author

Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., Sitnikova, Evgenia, Abarbanel, Henry, Series editor, Braha, Dan, Series editor, Èrdi, Péter, Series editor, Friston, Karl, Series editor, Haken, Hermann, Series editor, Jirsa, Viktor, Series editor, Kacprzyk, Janusz, Series editor, Kaneko, Kunihiko, Series editor, Kelso, Scott, Series editor, Kirkilionis, Markus, Series editor, Kurths, Jürgen, Series editor, Nowak, Andrzej, Series editor, Reichl, Linda, Series editor, Schuster, Peter, Series editor, Schweitzer, Frank, Series editor, Sornette, Didier, Series editor, Thurner, Stefan, Series editor, Hramov, Alexander E., Koronovskii, Alexey A., Makarov, Valeri A., Pavlov, Alexey N., and Sitnikova, Evgenia

Published
2015
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38. Wavelets in Neuroscience

Author

Hramov, Alexander E., primary, Koronovskii, Alexey A., additional, Makarov, Valeri A., additional, Pavlov, Alexey N., additional, and Sitnikova, Evgenia, additional

Published
2015
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39. Conclusion

Author

Hramov, Alexander E., primary, Koronovskii, Alexey A., additional, Makarov, Valeri A., additional, Pavlov, Alexey N., additional, and Sitnikova, Evgenia, additional

Published
2014
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41. Brief Tour of Wavelet Theory

Author

Hramov, Alexander E., primary, Koronovskii, Alexey A., additional, Makarov, Valeri A., additional, Pavlov, Alexey N., additional, and Sitnikova, Evgenia, additional

Published
2014
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47. Synchronization among mechanisms of renal autoregulation is reduced in hypertensive rats

Author

Sosnovtseva, Olga V., Pavlov, Alexey N., Mosekilde, Erik, Yip, Kay-Pong, Holstein-Rathlou, Niels-Henrik, and Marsh, Donald J.

Subjects
Wavelet analysis -- Usage, Kidney glomerulus -- Properties, Rats -- Diseases, Rats -- Physiological aspects, Rattus -- Diseases, Rattus -- Physiological aspects, Biological sciences
Abstract

We searched for synchronization among autoregulation mechanisms using wavelet transforms applied to tubular pressure recordings in nephron pairs from the surface of rat kidneys. Nephrons have two oscillatory modes in the regulation of their pressures and flows: a faster (100-200 mHz) myogenic mode, and a slower (20-40 mHz) oscillation in tubuloglomerular feedback (TGF). These mechanisms interact; the TGF mode modulates both the amplitude and the frequency of the myogenic mode. Nephrons also communicate with each other using vascular signals triggered by membrane events in arteriolar smooth muscle cells. In addition, the TGF oscillation changes in hypertension to an irregular fluctuation with characteristics of deterministic chaos. The analysis shows that, within single nephrons of normotensive rats, the myogenic mode and TGF are synchronized at discrete frequency ratios, with 5:1 most common. There is no distinct synchronization ratio in spontaneously hypertensive rats (SHR). In normotensive rats, full synchronization of both TGF and myogenic modes is the most probable state for pairs of nephrons originating in a common cortical radial artery. For SHR, full synchronization is less probable; most common in SHR is a state of partial synchronization with entrainment between neighboring nephrons for only one of the modes. Modulation of the myogenic mode by the TGF mode is much stronger in hypertensive than in normotensive rats. Synchronization among nephrons forms the basis for an integrated reaction to blood pressure fluctuations. Reduced synchronization in SHR suggests that the effectiveness of the coordinated response is impaired in hypertension. tubuloglomerular feedback; myogenic mechanism; oscillations; wavelet analysis

Published
2007

48. Frequency encoding in renal blood flow regulation

Author

Marsh, Donald J., Sosnovtseva, Olga V., Pavlov, Alexey N., Yip, Kay-Pong, and Holstein-Rathlou, Niels-Henrik

Subjects
Blood flow -- Research, Kidneys -- Research, Biological sciences
Abstract

With a model of renal blood flow regulation, we examined consequences of tubuloglomerular feedback (TGF) coupling to the myogenic mechanism via voltage-gated Ca channels. The model reproduces the characteristic oscillations of the two mechanisms and predicts frequency and amplitude modulation of the myogenic oscillation by TGF. Analysis by wavelet transforms of single-nephron blood flow confirms that both amplitude and frequency of the myogenic oscillation are modulated by TGF. We developed a double-wavelet transform technique to estimate modulation frequency. Median value of the ratio of modulation frequency to TGF frequency in measurements from 10 rats was 0.95 for amplitude modulation and 0.97 for frequency modulation, a result consistent with TGF as the modulating signal. The simulation predicted that the modulation was regular, while the experimental data showed much greater variability from one TGF cycle to the next. We used a blood pressure signal recorded by telemetry from a conscious rat as the input to the model. Blood pressure fluctuations induced variability in the modulation records similar to those found in the nephron blood flow results. Frequency and amplitude modulation can provide robust communication between TGF and the myogenic mechanism. tubuloglomerular feedback; myogenic mechanism; nonlinear interactions; amplitude modulation

Published
2005

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