A group of Vulcans who rejected strict emotional suppression and explored a balance between logic and feeling.
The V'tosh ka'tur, whose name means Vulcans without logic, set aside the discipline of emotional control that defines their culture. A group of them aboard the ship Vahklas met Enterprise in 2152 while seeking repairs, explaining that their journey was one of self-exploration rather than exploration of the galaxy.
T'Pol was intrigued by their philosophy, but one member, Tolaris, used a mind meld to manipulate her and later tried to force a second meld on her. The encounter left T'Pol injured and became an early example of the dangers associated with melding in her era.