4.2 Stimulus‐evoked hemodynamic responses First, the application of nonpainful pressure stimulation on the lumbar vertebra yielded a characteristic increase in [O 2 Hb] in several channels within both ROIs, whereas changes in [HHb] remained constant or decreased, although this decrease failed to reach significance after FDR correction.
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Different mechanosensory stimulations of the lower back elicit specific changes in hemodynamics and oxygenation in cortical sensorimotor areas-A fNIRS study.
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