Measures IgG, IgA, and IgM antibodies against five major neuron-specific antigens: myelin basic protein, asialoganglioside, alpha + beta tubulin, cerebellar, and synapsin. These antibodies are detected in patients with a variety of neuroimmune disorders, chronic fatigue/fibromyalgia, viral infections including SARS-CoV-2, EBV, CMV, HHV-6, long COVID, autism, ADD/ADHD, neuropsychiatric disorders, and exposure to toxic chemicals and molds and mycotoxins. Developed, patented, and published by Aristo Vojdani, PhD, MSc, CLS, known as the father of functional immunology, in 2005, 2007, 2008, 2020, and 2023.