The Vulcan Isolationist Movement was a small 24th century faction of separatists who believed contact with alien worlds was contaminating their culture and destroying Vulcan purity. In 2369, the Vulcan Isolationist Movement stole the first fragment of the Stone of Gol, an ancient weapon which utilized the negative energy of an enemy's own brainwaves, and hired Arctus Baran to find the two remaining pieces. In 2370, Tallera, a member of these extremists, tried to reassemble and attain this weapon. (TNG: "Gambit, Part I", "Gambit, Part II")
Writer Ronald D. Moore commented: "We assume the Vulcans crushed the life out of this dissident movement like the narrow-minded, pointy-eared reactionaries we all know they are." (AOL chat, 1997)