Dokkyo Medical University School of Medicine 1 article published in JoVE Behavior fMRI Validation of fNIRS Measurements During a Naturalistic Task J. Adam Noah1, Yumie Ono2, Yasunori Nomoto2, Sotaro Shimada2, Atsumichi Tachibana3, Xian Zhang1, Shaw Bronner1, Joy Hirsch1,5 1Department of Psychiatry, Yale School of Medicine, 2Department of Electronics and Bioinformatics, Meiji University, 3Department of Histology and Neurobiology, Dokkyo Medical University School of Medicine, 4ADAM Center, Department of Physical Therapy, Movement and Rehabilitation Sciences, Northeastern University, 5Department of Neurobiology, Yale School of Medicine We present a method to compare functional brain activity recorded during a naturalistic task using fNIRS with activity recorded during fMRI.