Try this:

Don't scroll down too fast and be honest about the first think that
comes to mind.

Free will or synaptic wiring?  You be the judge. Check out the
following exercise, guaranteed to freak you out. There's no trick or
surprise. Just follow these instructions, and answer the questions one
at a time and as quickly as you can! Again, as quickly as you can
but DON'T ADVANCE until you've done each of them... really.

Now, arrow down (but not too fast, you might miss something)...



     What is:
     1+5

     [scroll down]





     2+4

     [scroll down]







     3+3

     [scroll down]






     4+2

     [scroll down]







     5+1

     [scroll down]







Now repeat saying the number 6 to yourself as fast as you can for 15
seconds. then scroll down.



     [scroll down]




     [scroll down]






     [scroll down]






     [scroll down]






     [scroll down]




     QUICK!!!  THINK OF A VEGETABLE!  Then arrow down.




     [scroll down]





     [scroll down]





     [keep going]





     [keep going]









You're thinking of a carrot right?

If not, you're among the 2% of the population whose minds are warped
enough to think of something else.  98% of people will answer with
carrot when given this exercise.