^
Control or suppress? Trek has always been a bit ambiguous about which process is taking place. Vulcans, uninhibited, have rollicking, intense emotions. But does a Vulcan with "emotional control" actually choose ("control") which (if any) emotions to feel, or does the phrase really mean that the Vulcan controls which emotions she expresses to others (i.e., "supresses") and/or allows to affect her decision making process?
My understanding has always been that Vulcans who haven't been through
Kolinahr still feel all their emotions, and are merely able to prevent their emotions from affecting their decisions and from being expressed to others. A Betazoid should still feel those crazy feelings from a Vulcan, probably alongside a sense of 'control' and discipline.
Edit:
So if wikipedia (and memory) serves:
"While most Betazoids develop their telepathic powers at the onset of adolescence, and they gradually develop after that, a small number are born fully telepathic, although no one knows exactly why. Betazoids born with their telepathic abilities fully developed almost never lead normal lives - they are constantly bombarded with the thoughts of others around them, and drive themselves to distraction attempting to block out the never-ending telepathic "attack". Though also rare, Betazoids can be born without any telepathic ability, leading to sociopathic behavior.
Lon Suder is a Betazoid without telepathic ability."