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Proceedings Paper

Temporal analysis of fluctuations in cerebral hemodynamics revealed by near-infrared spectroscopy
Author(s): Vlad Toronov; Sergio Fantini; Maria-Angela Franceschini; Mattia A. Filiaci; Martin Wolf; Enrico Gratton
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Paper Abstract

We have non-invasively studied the motor cortex hemodynamics in human subjects under rest and motor stimulation conditions using a multichannel near-IR tissue spectrometer. We obtained optical maps of oxy- and deoxy-hemoglobin concentration changes in terms of amplitudes of folding average, power spectrum and coherence at the stimulation repetition frequency, and the phase synchronization index. Under periodic motor stimulation conditions, we observed coherence and phase synchronization of the local hemodynamic changes with stimulation.

Paper Details

Date Published: 6 April 2000
PDF: 4 pages
Proc. SPIE 4001, Saratov Fall Meeting '99: Optical Technologies in Biophysics and Medicine, (6 April 2000); doi: 10.1117/12.381494
Show Author Affiliations
Vlad Toronov, Univ. of Illinois/Urbana-Champaign (United States)
Sergio Fantini, Univ. of Illinois/Urbana-Champaign (United States)
Maria-Angela Franceschini, Univ. of Illinois/Urbana-Champaign (United States)
Mattia A. Filiaci, Univ. of Illinois/Urbana-Champaign (United States)
Martin Wolf, Univ. of Illinois/Urbana-Champaign (United States)
Enrico Gratton, Univ. of Illinois/Urbana-Champaign (United States)


Published in SPIE Proceedings Vol. 4001:
Saratov Fall Meeting '99: Optical Technologies in Biophysics and Medicine

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