The exhibits displayed in the second hall are witnesses of the elder brother Levon Orbeli’s life and creative activity.
He is considered to be one of the greatest world psychologists whose name is associated with the new discoveries of the regular functioning of the brain and his regularly impact as well as fundamental discoveries in the system of nervous vegetative psychology.
His unpublished letters, manuscripts, documents, research papers, books from the library, medals and the uniform of the general colonel, as well as medical instruments brought from Germany, are on display in the second hall.