The Left-brain/Right-brain Illusion Experiment

The Skull Illusion

Here's and interesting experiment 
I conducted in a writing class a few years ago. It involved an illusionary picture of a skull with a hidden scene. The class was told to look closely at the picture to see if they could see anything else. Here's the picture.

Interestingly some in the class saw the illusion quickly. Others took a while to see it. And some never saw it at all, even when it was pointed out to them and told what the hidden image was. One lady was quiet indignant about it because she couldn't see the hidden image. How did you do?

So what does this have to do with  Left-brain/Right-brain dominance? 
Apparently left-brain dominant people can see it more readily. Right-brain people have a harder time seeing the hidden image because they look at the overall picture and can not see the details as well that reveal the other image. This is strictly my own interpretation based on observing my fellow students during the course to learn which side of their brain seemed to be dominant. 

Is the Right brain Analog and the Left brain Digital?
Here's my own analogy on this if it's true, and I believe it is. Think about it, the right brain looks at the overall view as looking, for instance, at an analog clock. It sees  the overall face at first and then the position of the various hands to tell the time. There even are analog clocks that don't have numbers on them, just marks every 30 degrees to show the time. The left brain looks at the individual parts of the display as like looking at a digital clock. Here, individual numerals set side-by-side  tell the time in a digital form. This is not to say that some people can only tell time by one form or the other. But I do believe it's indicative of which side of the brain is involved when looking at either an analog clock or a digital clock for instance.

In my next blog I'll show you how you an test your own brain dominance.