Ears, Hands, the Brain & "Hand Held Confusion"

What we term as Hand Held Confusion, (See photo below), is not a random act that a driver perform when he is talking on a hand held phone.  I initially saw a CNN article on driver distraction with a photo showing a man holding the phone with the right hand but listening with the left ear. 

Further observation of traffic resulted in seeing this phenomenon mainly when drivers are exiting a parking lot into a traffic.  The surprised came when I saw my self "On Film" doing exactly the same.  The final observation (after several repeats) was that I use my right hand to control the steering wheel (I am right handed) but the phone in my left hand ends up on my right ear, especially when I am doing maneuvers, e.g. leaving a parking lot.  My conclusion was that I favor the right hand for active motor movement (because I am more skilled and sure of my right hand) and I use the left hand for static motor movement because I am not as skilled with my left hand.  I left it at that until I saw an article about the topic.

The article was in a non English publication, so I could not the exact spelling of the researchers names ( Luca Tomassy and D. Marzolli.).  The report about the research talks about the relation between right and left ear in terms of comprehension and acceptance of the message where Right Handed people preferred the Right ear and left handed people preferred the Left ear.

The study showed that in a noisy environment, Right handed people tended to turn their right ear toward the sound, even if the sound was coming from behind

The research was done in Italy by Luca Tomassy and D. Marzolli.

I believe that the combination of why people use one hand to control the steering wheel and they