Fig. (2) Grand average waveforms during the VFT task: Red line indicates grand
averaged oxy-Hb data and blue line indicates grand averaged deoxy-Hb data. (A).
Frontal hemodynamic change prior to the exercise therapy. (B). Frontal
hemodynamic change after the exercise therapy. (C). Bilateral temporal
hemodynamic change prior to the exercise therapy. (D). Bilateral temporal
hemodynamic change after the exercise therapy. VFT: verbal fluency task.