Share Email Print
cover

Proceedings Paper

Multichannel time domain fNIRS mapping of cortical activation and superficial systemic responses during neuromuscular electrical stimulation
Author(s): R. Re; M. Muthalib; L. Zucchelli; S. Perrey; D. Contini; M. Caffini; L. Spinelli; G. Kerr; A. Torricelli
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We recorded maps of cortical and systemic hemodynamic responses (oxy-hemoglobin, O2Hb and deoxy-hemoglobin, HHb) during incremental neuromuscular electrical stimulation (NMES) of the right forearm in nine subjects by a 32- channel time domain fNIRS (TD-fNIRS) instrument. Statistical parametric maps (SPM) relative to the different current stimulations (under and over the maximal tolerated intensity-MTI) versus the 10%MTI were generated. Exploiting the temporal information contained in the TD-fNIRS signal it was possible to create different maps referring to the deeper (cortical activations) and the more superficial (systemic changes) head layers. The increasing of the stimulation current on the right forearm muscle produced a significantly larger bilateral sensorimotor and prefrontal cortical activations (i.e. increase in the O2Hb and decrease in HHb) than the systemic changes. Physiological parameters (heart rate, breathing rate and skin conductance) were also monitored.

Paper Details

Date Published: 24 June 2013
PDF: 5 pages
Proc. SPIE 8804, Neurophotonics, 880404 (24 June 2013); doi: 10.1117/12.2032512
Show Author Affiliations
R. Re, Politecnico di Milano (Italy)
M. Muthalib, Univ. Montpellier 1 (France)
Queensland Univ. of Technology (Australia)
L. Zucchelli, Politecnico di Milano (Italy)
S. Perrey, Univ. Montpellier 1 (France)
D. Contini, Politecnico di Milano (Italy)
M. Caffini, Politecnico di Milano (Italy)
L. Spinelli, Istituto di Fotonica e Nanotecnologie, CNR (Italy)
G. Kerr, Queensland Univ. of Technology (Australia)
A. Torricelli, Politecnico di Milano (Italy)


Published in SPIE Proceedings Vol. 8804:
Neurophotonics
Francesco Pavone; Elizabeth Hillman; Vincent Daria; Serge Charpak, Editor(s)

© SPIE. Terms of Use
Back to Top