Functional mapping of the human brain with near-infrared spectroscopy in the frequency-domain

Angelo Sassaroli; Yunjie Tong; Francesco Fabbri; Blaise Frederick; Perry F. Renshaw; Sergio Fantini

doi:10.1117/12.533168

13 July 2004 Functional mapping of the human brain with near-infrared spectroscopy in the frequency-domain

Angelo Sassaroli, Yunjie Tong, Francesco Fabbri, Blaise Frederick, Perry F. Renshaw, Sergio Fantini

Proceedings Volume 5312, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XIV; (2004) https://doi.org/10.1117/12.533168
Event: Biomedical Optics 2004, 2004, San Jose, CA, United States

Abstract

Comparison of the spatial and temporal information retrieved from near-infrared phase and average intensity (DC) data reveals that these data types can play a complementary role in the study of the temporal and spatial features of the optical response associated with brain activation during a finger-tapping test. The optical data have been collected with a frequency-domain tissue imager at two wavelengths (690 and 830 nm) and have been analyzed using standard filtering and folding-average procedures. DC and phase data show different temporal and spatial features. A plausible explanation of the different behavior of DC and phase data has been attempted by using Monte Carlo simulations.

Citation Download Citation

Angelo Sassaroli, Yunjie Tong, Francesco Fabbri, Blaise Frederick, Perry F. Renshaw, and Sergio Fantini "Functional mapping of the human brain with near-infrared spectroscopy in the frequency-domain", Proc. SPIE 5312, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XIV, (13 July 2004); https://doi.org/10.1117/12.533168

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