Hemodynamic responses to visual stimuli in cortex of adults and 3- to 4-year-old children

► Hemodynamic changes to visual stimuli in preschool and adult cortex were described. ► Significant changes in preschool brain were mainly induced by motion pictures. ► Motion pictures induced changes over striate, motion and temporo-parietal areas. ► Oxygenated response amplitudes were more profound in preschoolers than in adults. ► Preschool and adult oxygenated hemoglobin recovery and deoxygenated changes seemed similar.