Functional Neuroradiology expands upon high resolution anatomic imaging of the brain and spine. It is defined as imaging of the functional aspects of the central nervous system, which encompasses emerging techniques including Blood Oxygen Level Dependent Functional MRI, Diffusion Imaging, Perfusion Imaging, Magnetic Resonance Spectroscopy, Magnetoencephalography, Positron Emission Tomography, Molecular and Metabolic Imaging, and Machine Learning. THE AMERICAN SOCIETY OF FUNCTIONAL NEURORADIOLOGY (ASFNR) is a specialty society of the American Society of Neuroradiology. The ASFNR was established in June 2004 in Seattle, Washington during the ASNR 42nd Annual Meeting.The ASFNR encourages and facilitates the introduction of Functional Neuroradiology into clinical neuroradiological practices, develops standards for the practice of Functional Neuroradiology, supports Functional Neuroradiology research, and is an educational resource for practicing physicians and scientists in this new and evolving field.