With the second kind, a person has a conventional brain--language center on the left--but prefers the left hand because their personality is mainly governed by their non-linguistic brain. Such people, for example, are more often artists and musicians. A sign of this is mixed-handedness--right-handed in some things and left-handed in others. Another sign is absence of completely left-handed relatives.
It's natural to wonder if many CDs and TGs may have the second condition. It would make sense. Historically there are many associations to "left" being female and "right" being male. Women use their non-linguistic brain hemisphere more than men. There is some evidence that TS's are disproportionately left-handed. The part of our brain that connects the two hemispheres also may figure into this.
How many people here are left-handed, fully or partly. Here are some good indicators:
- 1. Which hand do you write with?
2. Which hand do you throw a ball with?
3. Which hand do you bat (or play tennis) with?
4. Which eye would you prefer to look through a microsope with?