Paradoxical increases in anterior cingulate cortex activity during nitrous oxide-induced analgesia reveal a signature of pain affect. Pain 2025 https://researcherprofiles.org/profile/698141694 41037432 Weinrich JAP, Liu CD, Jewell ME, Andolina CR, Bernstein MX, Benitez J, Rodriguez-Rosado S, Braz JM, Maze M, Nemenov MI, Basbaum AI