That's interesting that it might be to do with sports in which we tend to 'face' the ball side on. In your case, are there also any difference between which sports you taught yourself and which sports were taught to you (likely by right-handed people)?

Please feel free to let them know about this research project if you think they'd be interested!

Do you know anyone else who plays a string instrument 'upside down'?

Any thoughts on why those two activities in particular might be exceptions?

Of course it is! That is an awesome sight to behold. I have to ask the burning question: how would you describe your handedness in daily life?

That is very interesting indeed! Have you always played guitars strung 'lefty', or did you start out playing 'upside down' before you could get your hands on one? And please forgive my ignorance, but... what is the instrument in your profile picture? 😅