I have created many self-help audios and one of the things that struck me was how the sound through headphones was perceived by those with a dominant left-hearing ear. Curative audios sometimes have more of an impact when certain pitches are used to carry the message to the user through earphones. I was pleased that a psychology don did some in-depth research into this, and the findings proved what I have been claiming for some time was true ... that people with a dominant left hand are likely to have a dominant left ear!

The 'Journal of Experimental Psychology' carried findings which revealed how left-handed people deliberate over things quite differently than was first thought. Even down to how a left-handed person makes a choice is all, apparently, because of the use of a particular hand as the dominant one. To date, all of my recent self-help audios carry instructions for left-handers to reverse their stereo headsets.

A comprehensive analysis of right-handed people demonstrated how they possess better hearing when listening through their right ear. In the 1991 'Previc hypothesis' Eighty one right-handed and forty five left-handed undergraduates were used in the tests, which were over a prolonged period of listening. The results confirmed that the dominant hand dictated the dominant listening side - neither left nor right-handed listeners having any better hearing, just a more dominant ear. For that reason it is well advised to ensure that when listening to certain therapy based audios that the earphones are used appropriately.

It was found that there was a definite affirmative association when tests were scored for left and right-handed people for the lengths of listening time for left and right ears of both left and right-handed listeners. Basically the results meant there was a link between dominant hand choice and unevenness of hearing.

Just because you are right-handed does not mean you are dominant in right-sidedness! As much as you have a primary hand, you also have a primary eye, leg and foot, etc! Not all of these are interrelated to the same side of your body. You may use a tennis racket with your right hand but use your left boot as the primary kicker when playing soccer. Studies of undergraduates found that they associate upbeat thoughts with their primary side and downbeat thoughts with their secondary side.

The male of the human species is more prone to having dominant use of their left hand than the lady of the species. Just because a child's mother and father are both left-handed does not mean they will be, as there is only a 1 in 4 chance of this being the case. Apparently in the last 80 years there have been 7 left-handed US presidents, Barack Obama being one of them!

It can be quite annoying for left-handers to have to keep switching their headphones around, but this can be overcome if you are using a headset with multiple cables going to your PC, just change the cables around. You can also swap right to left by going into your PC's soundcard, if it has this set-up installed.

Try switching your headset when listening to different audios, whatever feels good for you is fine. There are, at times, no hard and fast rules. There is no real left/right brain way to determine what is right for you. Something worth noting though is, you may not have this 'switched' brain activity just because you are a left-hander.

Left-handed utensils and tools have come on a long way since everything was 'right-handed'. Now you can even get a left-handed pen, tape-measures, corkscrews, scissors and much more. What is interesting is that you can get a boomerang for left-handers, but left-handed headsets are more difficult to come by! Roughly 10 percent of the world's population are left-handed. That's an awful lot of left-handed people from the 7 billion world population! Maybe the electronics industry will take note.

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