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Proceedings Paper

Spatio-temporal analysis of the cerebral spontaneous oscillation
Author(s): Jee Hyun Choi; Martin Wolf; Vladislav Yu. Toronov; Antonios Michalos; Enrico Gratton
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Paper Abstract

Cerebral vasomotion was studied on the human brain in vivo by use of multi-optode frequency domain near-infrared spectroscopy (NIRS). Vasomotion is a spontaneous oscillation with a frequency of 0.1 Hz in the arterial flow. We investigated (1) the fluctuations of cerebral hemodynamics on the dynamical characteristics of cerebral vasomotion and (2) the dynamical coupling between vasomotion in the skin and brain. We found that (1) vasomotion is temporal coherent at least for about 3 min; (2) vasomotion observed from NIRS is low-dimensional chaotic with its fractal dimension of about 4.5; (3) vasomotion is spatially coherent with coherence length of about 1 - 2 cm but cerebral vasomotion is dynamically independent from vasomotion in the skin.

Paper Details

Date Published: 28 May 2004
PDF: 9 pages
Proc. SPIE 5330, Complex Dynamics, Fluctuations, Chaos, and Fractals in Biomedical Photonics, (28 May 2004); doi: 10.1117/12.548202
Show Author Affiliations
Jee Hyun Choi, Univ. of Illinois/Urbana-Champaign (United States)
Martin Wolf, Univ. Hospital Zurich (Switzerland)
Vladislav Yu. Toronov, Univ. of Illinois/Urbana-Champaign (United States)
Antonios Michalos, Univ. of Illinois/Urbana-Champaign (United States)
Enrico Gratton, Univ. of Illinois/Urbana-Champaign (United States)

Published in SPIE Proceedings Vol. 5330:
Complex Dynamics, Fluctuations, Chaos, and Fractals in Biomedical Photonics
Valery V. Tuchin, Editor(s)

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