Vulcans are taught most psionic disciplines from childhood, manifesting themselves primarily in the Vulcan Mind Meld.  The Mind Meld is a telepathic power package consisting primarily of the skills Telesend and Telereceive.  Vulcans do not naturally lack emotions; this is a discipline taught starting at the very youngest ages.  Vulcans are devoted to increasing their mental capacity by controlling their inner actions.  To this end, they dedicate their lives to the suppression of emotions and devotion to total logic.  Despite Vulcan's founding role in the UFP, there exists a substantial segment of Vulcan society which is extremely isolationistic and wants to have Vulcan free of interaction with "illogical" beings.  A few Vulcans have given up the devotion to logic in pursuit of other goals that can only come from being an emotional entity.  Vulcan's wish to give up all emotions and clear their mental faculties so that they may pursue every matter from the perspective of pure logic.  Half-Vulcans generally have a harder time keeping control under moments of duress.  Vulcans with the devotion to logic are immune to fear, insults, and all other such attacks.  Vulcans can remember highly detailed information about events, people, and places they encountered during their life.  Vulcans can do complex calculations in their minds, and analyze almost any mathematical equation with ease.  They can also control their metabolism through concentration, putting themselves into a trance-like state, which acts as sort of a mental vacation.  This trance can also be used to accelerate their own healing processes.

See Vulcan for more information.