Nina Kraus has innovated the use of FFR as a measure of human communication skills, life experience, and auditory learning and memory. She is a senior scholar in the field and brings over 30 years’ experience pursuing basic and translational questions in auditory neuroscience. Samira Anderson is a scientist-clinician who brings 25 years’ experience in the clinic and as a young investigator has made major contributions to the understanding of central auditory processing, with a particular emphasis on neuroplasticity and aging/hearing loss. Travis White-Schwoch is a member of the Kraus laboratory with extensive experience in FFR theory and technology, and developmental changes in auditory processing. The editorial team has a strong history of collaboration, and together they bring unique knowledge to the book. Arthur N. Popper is Professor in the Department of Biology and Co-Director of the Center for Comparative and Evolutionary Biology of Hearing at the University of Maryland, College Park. Richard R. Fay is Distinguished Research Professor of Psychology at Loyola University Chicago.