Temporal analysis of fluctuations in cerebral hemodynamics revealed by near-infrared spectroscopy

Vlad Toronov; Sergio Fantini; Maria-Angela Franceschini; Mattia A. Filiaci; Martin Wolf; Enrico Gratton

doi:10.1117/12.381494

6 April 2000 Temporal analysis of fluctuations in cerebral hemodynamics revealed by near-infrared spectroscopy

Vlad Toronov, Sergio Fantini, Maria-Angela Franceschini, Mattia A. Filiaci, Martin Wolf, Enrico Gratton

Proceedings Volume 4001, Saratov Fall Meeting '99: Optical Technologies in Biophysics and Medicine; (2000) https://doi.org/10.1117/12.381494
Event: Saratov Fall Meeting '99, 1999, Saratov, Russian Federation

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.

Citation Download Citation

Vlad Toronov, Sergio Fantini, Maria-Angela Franceschini, Mattia A. Filiaci, Martin Wolf, and Enrico Gratton "Temporal analysis of fluctuations in cerebral hemodynamics revealed by near-infrared spectroscopy", Proc. SPIE 4001, Saratov Fall Meeting '99: Optical Technologies in Biophysics and Medicine, (6 April 2000); https://doi.org/10.1117/12.381494

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