• Conjoined Twins (Disease Or Medical Condition)
• craniopagus
• Medicine (Field Of Study)
• krista tatiana

The CBC TV documentary reveals a year in the life of the astonishing Hogan sisters -- the only known twins who doctors suspect can see what the other sees, and feel what the other feels. Their family believes they can also taste what the other tastes. As craniopagus twins, 7 year old Tatiana and Krista are the only people in the world known to share a neural bridge between their thalamus - a part of the brain involved in the regulation of consciousness along with sensory and motor signals.
http://www.cbc.ca/doczone/episodes/twin-life-sharing-mind-and-body