Journal of Neutrosophic and Fuzzy Systems JNFS 2771-6449 2771-6430 10.54216/JNFS https://www.americaspg.com/journals/show/907 2021 2021 Mathematics, Physical and Natural Sciences Division University of New Mexico, 705 Gurley Ave. Gallup, NM 87301, USA Florentin .. Regional Center for the Professions of Education and Training, Casablanca-Settat, Morocco; and Laboratory of Information Processing, Faculty of Science Ben M'Sik University Hassan II, Casablanca, Morocco Said Broumi In this short note we show that the newly introduced concept of Neutro-Intelligent Set (NIS) deserves attention in its applications to the human brain activity, and that NIS is a particular case of the Refined Neutrosophic Set. 2021 2021 34 36 10.54216/JNFS.010103 https://www.americaspg.com/articleinfo/24/show/907