Dr. Mouton’s professional training includes a one-year predoctoral fellowship in neurobiology at the Karolinska Institute (Stockholm, Sweden) and Ph.D. in Neuroscience from the University of South Florida (USF, Tampa, FL), a two-year postdoctoral stereology fellowship in Denmark with Professor Hans J.G. Gundersen, the “father of unbiased stereology,” followed by a two-year NIH fellowship in Neuropathology with Professor Donald L. Price at the Pathology Department at the Johns Hopkins University School of Medicine (Baltimore MD). He subsequently served on faculty at the Hopkins Pathology Department for six years before establishing the Neurostereology of Brain Aging group at the Hopkins Bayview/National Institute on Aging campus in Baltimore. His stereology work in autopsied human brains was the first to 1) stability of noradrenergic neurons in locus coeruleus during normal brain aging; 2) substantial neuron loss in hypothalamic regions from patients with major depression; and, the strongest correlations to date between neocortical degeneration and progressive dementia in Alzheimer’s disease. Other stereology projects during this time were the first stereology protocols for analyzing human and animal brain aging and autism and quantification of the earliest mouse models expressing human mutations for Alzheimer’s, Parkinson’s and other neurodegenerative diseases.