`  :This is not a discussion group, but the easy way to answer your questions is to use the phrase that A&B; use: ``We're just two people stuck together.`` They both have a right-and-left brain hemisphere; it's unclear whether having only one arm influenced each twin's brain development in some way. They have a small amount of sensory overlap where they are ``stuck together``, but feeling is mostly independent. The are not ambidextrous, since you need two arms to be ambidextrous. They are two people, each with one arm, stuck together.`