Hemodynamic changes at various source-detector distances during the finger-tapping task for participant 1.

<p>Upper two rows: hemodynamics estimated by the conventional method. Middle two rows: functional component by the proposed method. Bottom two rows: systemic component by the proposed method. Data were block averaged. Red and blue lines indicate oxy- and deoxyhemoglobin changes, respectively. Red and blue bands indicate SDs for oxy- and deoxyhemoglobin changes, respectively. Green line indicates the task period. “L” (left) and “R” (right) indicate the side used during finger tapping. “Left” and “Right” indicate the measurement positions. “10 mm,” “20 mm,” “30 mm,” and “40 mm” indicate the source-detector distances.