Bendii syndrome is a neurological condition which affects a minority of Vulcans in old age, typically over 200 years old. Symptoms include loss of emotional control, which can result in emotional outbursts and quite dangerously to others, telepathic projections of the sufferer's emotions. (TNG episode: "Sarek") These psychic disturbances that were broadcast by the sufferer of the syndrome did not occur until they were of a more advanced stage. (TNG novel: The Devil's Heart) Information about the illness could be found in the USS Voyager's computers by 2376. (VOY video game: Elite Force)