Add Yahoo as a preferred source to see more of our stories on Google. Everyday tech of modern life can take on sinister dimensions for people with thought disorders. Busà Photography/Moment via Getty ...

Rational beliefs are formed on the basis of solid evidence and are open for appropriate revision when emerging evidence makes them less likely to be true. In contrast, a person with a delusion will ...

A shipping clerk begins to think he’s been given a secret task of geopolitical significance. A government employee believes that descriptions of a certain actor in the newspaper are actually about her ...

A young woman starts to become suspicious of her cellphone. She notices it listing Wi-Fi networks she does not recognize, and the photos on her contact cards seem to mysteriously change at random ...