Pavlov sits outside an isolated chamber in 1924 or 1925 with three star coworkers: from left, comanager of the IEM lab and creator of the theory of mutual induction Dmitrii Fursikov, Pavlov, Pavlov’s lover and cofounder of the “experimental pathology and therapeutics of higher nervous activity” Maria Petrova, and veteran coworker and comanager of the IEM lab Iosif Rozental’. © St. Petersburg branch, Archive of the Russian Academy of Sciences