Psychologist Peter Halligan of the UK assessed how common delusions were in the UK. He found that more than 90% of people held at least one delusion. None of his subjects were troubled by their strange beliefs.
Below are the top 10 delusion-like beliefs that he found:
Your body, or part of your body is misshapen or ugly – 46.4%
You are not in control of some of your actions – 44.3%
You are an exceptionally gifted person that others do not recognize – 40.5%
Certain places are duplicated, i.e. are in two different locations at the same time- 38.7%
People say or do things that contain special messages for you -38.5%
Certain people are out to harm or discredit you- 33.8%
Your thoughts are not fully under your control -33.6%
There is another person who looks and acts like you – 32.7%
People you know disguise themselves as others to manipulate or influence you -24.9%
New Scientist April 4-10, 2015