We have seen quite a few tests to show how left-handed people
are and whether they have an special skills as a result. We have
included our favourites below.
How Left-Handed Are You?
Have you ever chatted with your right-handed friends about being
left-handed and that they scoff and say that they are completely
right-handed? Well, you may be able to prove that they are less
right-handed than they think. We have some fun tests and games that
you could try with them to show that there are varying degrees of
It is only the dominance of one side of the brain that decides
which side of the body you prefer to use. However, as we still have
to use all the brain to fully control our bodies, we use the other
side more than we think.
Get together with a group of friends and have a go at the following
exercises. Remember that each task must be carried out instantly
and without thinking about it.
- Imagine the centre of your back is itching. Which hand do you
scratch it with?
- Interlock your fingers. Which thumb is uppermost?
- Imagine you are applauding. Start clapping your hands. Which
hand is uppermost?
- Wink at and imaginary friend straight in front of you. Which
eye does the winking?
- Put your hands behind your back, one holding the other. Which
hand is doing the holding?
- Someone in front of you is shouting but you cannot hear the
words. Cup your ear to hear better. Which ear do you cup?
- Count to three on your fingers, using the forefinger of the
other hand. Which forefinger do you use?
- Tilt your head to one shoulder. Which shoulder does it
- Fixate a small distant object with your eyes and point directly
at it with your forefinger. Now close one eye. Now change eyes.
Which eye was open when the fingertip remained in line with the
small object? (when the other eye, the non-dominant one, is open
and the dominant eye is closed, the finger will appear to move to
one side of the object.)
- Fold your arms. Which forearm is uppermost?
If you have always considered yourself to be right or
left-handed you will now probably discovered that your body is less
than total in its devotion to the left or right side. Whichever
hand you use to write with, the chances are that you were not able
to be 'right' 10 times.
Thurston's hand test - thinking in 3D
The left-handed brain's mastery of the visual has an important
benefit - it can "see" three dimensionally.
In Thurston's hand test, you are asked to identify which
pictures are of left hands and which are of right hands. Your
right-handed brain is at a loss to handle this problem, but your
left-handed brain can actually rotate these drawings in imaginary
space to solve the test - have a go!
Kanizsa's triangle - how the right-brain creates things
Here's another example showing how your left-handed brain can
even create things that don't exist.
If you can see the white triangle - the one with its apex
pointing up - it's because your left-handed brain has created that
triangle to unify what is otherwise simply a collection of angles
and PacMan shapes. There is, in fact, no white triangle there.