Maybe he is ambidextrous, not to rare as condition. By direct experience I can say that unless using some tricks, like a wearing a watch or a ring and looking at it, explaining simple right/left related action in words becomes complex. Remembering is even worse unless the memory holds the position of the object used for reference. Kinda of a democratic government: while it has advantages, sometimes the decision process is convoluted and lengthy and error prone. This is related only to rationalization of proprioception, instinctive action is not affected.
mic 2011/11/23 Jed Rothwell <[email protected]>: > Marcello Vitale wrote: > >> I currently have a broken meniscus in one knee. It hurts. I still have to >> touch it and think about it before being able to say whether it's the left >> or the right knee. > > That is a common problem. Another problem is determining left and right in > another frame of reference. That is to say when you are looking at another > person it can be difficult to say which is his right hand. Or when you are > trying to unscrew something from an odd angle. For example when you look > down at a sink and you try to unscrew the cap at the end of the faucet that > holds the screen. From your frame of reference it has to be unscrewed > clockwise. > > - Jed > >
