Obsessive compulsive disorder wreaks havoc on the lives of approximately two to three percent of the world’s population. But despite its prevalence, one of the most-common treatments for the condition ...

Like humans, octopuses can fall for the rubber hand illusion and believe that a fake arm is theirs. This suggests they have a sense of their own body, just as we do. The rubber hand illusion is a ...

I tried this crazy rubber hand illusion that tricks your brain into thinking it’s your own hand. The feeling was surreal — like my real hand disappeared and this fake one took over. Here’s how it went ...