Question

Upon seeing the fraser's spiral, most people must carefully trace one of the circles to confirm what is "real" in the design. this is an example of

Answer 1

The answer to this question is Reality testing
In business term, Reality testing refers to the process to separate our emotion to see the actual situation that revolves around us.
By doing this, we will keep ourselves from relying on negative emotions to make a decision and start to use objective measures to predict the outcome.